Ive been rehabbing a house in PA for sometime. That way I can leave sprinklers on when I go out of town. Flowing water through the tankless coil or instantaneous water heater too fast will mean that the water temperature may be too low at the fixture. Learn more at our resource centre.
And 3/8 pipe holds 2.25 times as much water as 1/4. Great idea Deniz, but as always it comes down to how much money you got kid? Perhaps some day when the cost of wasted water and energy becomes a bigger expense (or more people actually give a sh-t), it will result in innovative ideas like you are suggesting. What does it mean when a water heater Temperature/Pressure Relief (TPR) discharge pipe is "trapped"? What's the valve with the flip-up handle on the water heater for? Get my towel and shower stuff together. Some of the older houses in town, though, piped the entire hot water system in 1/2, to get the hot water faster and cut down on waste., . A really stupid layout, but it is what it is. What are the most common installation mistakes with water heater replacement? %PDF-1.5 % Yes, there is some loss, but the HPWH is very efficient and I can control the amount of circulation (and thus loss) through the valve at the WH. Any recommendations for the DIY guy? The flow rate for a given water heater depends on inlet and outlet water temperature. H0EBD\'NdXTSK,`8{LRE]=/C{cB #9f1LM So, after installing a new element and anode, we changed to just turning it in for shower use, and had to wait for the tank to heat. Replies to my comments The actual amount of wasted water, however, is often greater than the water sitting in the pipes. A traditional hot water recirculation pump requires a return loop. This insulation works well with this tubing: https://www.grainger.com/product/TUNDRA-1-2-in-Thick-2CKG5?searchQuery=2CKG5&searchBar=true In general, the greater the percentage of smaller diameter piping in a water system the greater the reduction in flow rate, all other factors (such as pressure, total piping length, number of elbows, valves, etc. ) Just wondering if anybody here changed their piping size when the tank was replaced and noticed any upgrade in performance. Hot water pipes rarely take the shortest distance from the water heater to a fixture. What is the difference between a single element and dual element electric water heater? Luba, tankless electric water heaters use a lot of current and arent very efficient. It would barely last through my wifes hot showers, at which point the incoming water to the mini-tank from our main WH would be warm not hot. Being 85 ft from the main WH, with uninsulated 3/4 copper pipes buried in the soil under the slab (cold and hot close to each other), it is no wonder.
David, I think the key here may be the use of PEX. The kitchen is the one at the end of the line. Efficient design. This is a pet peeve of mine and so many homeowners. By the way, if you need to go further than 25 feet to your faucet, I suppose 3/8 PEX tubing would work also with different adapters. The original piping is still installed and can be used with the turn of a valve. I used this as a starting point: https://www.buellinspections.com/re-circulating-hot-water/. Will And yes, recirculation heat losses can be significant, depending on how many minutes the pump operates, whether hot water pipes are insulated and the R-value, whether hot water pipes are routed through unconditioned space, and how cold that space gets. but other than reducing the length, most folks should be INCREASING the diameter of their pipes unless you like water hammer or have less than 60 psi of pressure. 3/8 would work to the vanities for sure. https://www1.eere.energy.gov/solar/pdfs/sda_saving_water.pdf. get rid of small diameter line refrigerators, and dishwashers especially! Does a tankless water heater in an attic require a drain pan? Here is the link for the pump: https://www.amazon.com/gp/product/B08TQJHPXK/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1. Percent decrease in cross sectional area going from copper to PEX is about the same as the percent reduction in water flow through the piping, if all other factors are kept equal: Pexuniverse gives nominal pressure drosp in psi per 100 ft. of tubing length for several flow rates from which we excerpt below. All of this without giving my town a dime for wasted, cold water. However, I believe most codes still require the use of arrestors with PEX. The hot water fixture rating of a bathroom is 1.5 fixture units, and a kitchen with sink and dishwasher adds 1.9 fixture units Thats 3.4 already, and we havent even added a laundry at 1.8 fixture units. Moreover, most dishwashers have an internal heater that raises the water temperature as necessary. My pipes run under a slab and is uninsulated, when is the EPA going to make insulating hot water pipes mandatory in New home construction? Before putting it on I drilled out the restrictor and it's made a huge improvement. We tee off the water heater and homerun to the master shower, then the vanities with a 3/4 inch manifold to feed all the heads and reduce to 1/2 inch to the vanities. What is the difference between a regular water heater and a power vent water heater? Page top sketch illustrating the effects of changes in pipe diameter, courtesy of Carson Dunlop Associates, a Toronto home inspection, education & report writing tool firm. Water Heating Is a System, Not Just a Water Heater, The 3 Types of Energy Efficiency Losses in Water Heating, Down the Drain! I dont know how big a difference it makes, but we use pressure compensating shower heads that deliver 1.5 gpm from 30 to 80 psi. Code requirements cited may have been changed in a newer code edition, or may not yet be adopted in your area. In any event, the shower fitting itself is 1/2" so wouldn't that create it's own bottleneck anyway ? After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in.
Our 1903 Vic did and it seemed odd until we realized it addressed this very issue, time to get hot water to the place of use quickly with little loss of heat. Can you use a light switch for a water heater disconnect? https://www.iapmo.org/water-demand-calculator. Correction: to any fixture allowed by code and that you are concerned about wait times. It does not increase the total volume of hot water that is available from a water heater.
I have now since swapped out the shower head for a brand new head, albeit low budget, from Home depot. HW8}]|f. But I am working with less than 60psi (well water), 80 feet from the water heater, and 20 is in an unconditioned garage. It simply reduced the flow rate while leaving the same amount of water to push through before hot water can arrive. Happy plumbing! My understanding is that the ProPEX lines are able to absorb the shock caused by water hammer in many cases without the need for arrestors. I can live with that. Thank you for the assistance and the subsequent comments on the theory that the PEX is causing a lower pressure at the shower head. flexible connector fittings water line heater gas supply About the shower head: it is probably a low-flow shower head as most are currently; at low water supply pressure systems where going to a low-flow shower head gives unacceptable water flow for bathers, I either pull out the restrictor in the shower head (usually it's right in the screw-on fitting) or if necesssary I drill out the opening into the shower head at its connector. water heater sharkbite valve hose connector ball braided stainless steel fittings push fip fitting shark connect plumbing upc upcitemdb connectors What's that powdery crust on the pipe connections at the water heater? If this were HVAC ductwork we would be talking about the heat lost to the piping and from there to the attic as the fluid slowly runs through.. What about heat mass? Most homes will need 3/4. I am (sorry to say) far too familiar with the effects on water flow rate (popularly called "water pressure") of reductions in the diameter of a supply pipe, thanks to a lazy local Poughkeepsie plumber who used 1/2" instead of 3/4" ID PEX on a job. I dont quite understand what youre doing. I have to assume that the PEX is causing a reduction in volume which manifests itself as low pressure at the shower head..I guess I'm getting some soldering practice in the near future. Is it alright to have a shut-off valve on both the hot and cold water pipes at a water heater?
There is another hot water distribution retrofit that should be mentioned: bypassing the existing 3/4 and 1/2 pipes with 1/4 pex tubing directly from the water heater. FIP x 18 in.,Stainless Steel, LASCO 10-1221 Flexible Coated Gas Water Heater Supply Line, 12-Inch, 1/2-Inch OD Connector with 1/2-Inch MIP X 1/2-Inch FIP Fittings, SharkBite 18 Inch Water Heater Connector, 3/4 Inch MIP x 3/4 Inch Push To Connect, Flexible Corrugated Stainless Steel, SS3134FX18LZ, EZ-Fluid 1-Inch FIP x 3/4-Inch FIP x 24-Inch Corrugated Flexible Stainless Steel Water Heater Connector For Female Iron Water Pipes Fitting (2-Pcs), Eastman 48231 Flexible Stainless Steel Braided Water Heater Connector, 3/4-Inch FIP X 3/4-Inch Push-Fit Connection, 24-inch Length, HIGHCRAFT GUXD-C56-46E 24 Inch Lead Free Braided Water Heater Connector with 3/4'' Inner Diameter & 3/4'' FIP x 1 Inch FIP Fittings, Maximized Corrosion Resistance and Performance, Eastman 0437736 Corrugated Copper Water Heater Connector, 36 inch Length, EZ-Fluid 12-Inch Stainless Steel Braided Water Heater Connector Hose for Female Iron Water Pipes Fitting, 3/4-Inch FIP x 3/4-Inch FIP, Eastman 0437124 Stainless Steel Corrugated Water Heater Connector, 3/4" FIP x 3/4" FIP, 24" Length, Red and Blue, SharkBite 3/4 Inch x 3/4 Inch FIP x 18 Inch Stainless Steel Braided Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U3088FLEX18LF, Flextron FTWC-S34-18F 18" Corrugated Connector for Water Heater with 3/4" FIP and 3/4" Pex Ends, Stainless Steel, Water Heater Pilot Assembely Includes Pilot Thermocouple and Tubing LP Propane, Flextron FTGC-YC34-36P 36" Flexible Yellow Epoxy Coated Gas Line Connector with 1" Outer Diameter and 3/4" FIP x 3/4" MIP Fittings, Stainless Steel, 2-Pack Premium Stainless Steel Washing Machine Hoses - 5 FT No-Lead Burst Proof Water Inlet Supply Lines - Universal Connection - 10 Year Warranty, MCAMPAS 48" Safety-Shield Gas Appliance Kitchen Flexible Hose Connector Kit-5/8"Inner Diameter Gas Line,1/2" FIP.1/2"MIP.3/4"MIP Gas Flex Connector For Garage Heaters, Gas Stoves,Water Heater, PROCURU 1" OD x 60" Long x 3/4" MIP x 3/4" FIP Gas Flex Line Connector Kit, WeatheProof Max-Flow High Capacity Stainless Steel with SafeGuard Coating for Tankless Water Heater, Frost King HC30A Automatic Electric Heat Kit Heating Cables, 30', Black, Seleq Corrugated Stainless Steel Water Heater Supply Line 3/4 24" Set of 25, EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology, Eastman 48252 Flexible Stainless Steel Water Heater Connector 3/4" FIP Swivel, 24" Length, Silver, K&J Premium 6ft Washing Machine Hoses Burst Proof 2 Pack - Hot and Cold Water Supply Hoses for Washing Machines (Stainless Steel), Eastman 0437024 Corrugated Stainless Steel Water Heater Connector, 24-Inch, Stainless, All customers get FREE Shipping on orders over $25 shipped by Amazon. we teed a 3/4 line off the water heater and got in the master vanity base above. It had got to the point where you could comfortably take a shower just in hot water while the hot in the sink would scald my hand after a second. I think you convinced me to run it in parallel, just so I have the option if I get frustrated with delays in the future. Why not go that route?? You can also subscribe to all comments without commenting. Its just a question that has been in my mind, probably since I am thinking of both systems. Can you use a light switch for a water heater disconnect? I have 1 pipes running to the 2nd floor, cold and hot (140 F). How to get more water "pressure" or how to improve water flow rate (gpm or lpm). In sum, larger diameter piping increases water pressure and flow. They establish efficiency standards for hot water heaters, HVAC, and home wall and attic insulation but let efficiency down the drain with hot water. Hot water: 120 F. Also the HPWH is scheduled to run 120 when we most need it, 110 the rest of the time, except a one hour 140 each date to kill any germs in the tank.
A win-win, especially since we do not find it necessary to take showers every day, and only use a master bath vanitys hot water perhaps 10 times a week. How do I determine if a water heater is gas or electric? What is required clearance for access and working space in front of an electric water heater? Having taken Gary Kleins class several times on Structured Plumbing, Im convinced of the many benefits of hot water planning at the design stage. To elaborate further on my last comment, the concept you raised has been realized a couple of ways. Here are a few solutions to the hot water delivery problem, starting with the most comprehensive. What are the mistakes to avoid when doing attic improvements? My home is so bad I have installed a recirculating pump that pushes cold water sitting in the hot water pipe into the cold water line I remotely turn on and off when I use the shower. get a recirculation setup, and save your plumbing and appliances. But the funny thing is I use 1/4 pex tubing to all of my hot water faucets directly from the water heater and get no water hammer what so ever. Elbows are critical, especially with multiple heads in a shower. I see that Uponor sells 1/4 tubing but does not sell 1/4 expansion heads or rings. A heater must be sized for the coldest expected inlet water temperature, which varies widely by region and water source. Does a tankless water heater require a pressure relief valve? Why is an older water heater an insurance problem? I used Sharkbite PEX-B tubing. For the hot water, my current thinking is tankless with demand recirculation. Allrightsreserved. Save my name, email, and website in this browser for the next time I comment. Also I dont have good use for those gallons of cold water. You may regain some of this loss by insulating hot water supply piping or by setting water heater or boiler temperatures higher as well as by an adjustment at. I say match what the cold water uses, otherwise you risk creating an imbalance between hot and cold when the water pressure fluctuates. Could be wrong but that system seems more complex than a POU heater.. At this point; Im just trying to decide between a small electric tank or tankless to serve a kitchen faucet and dishwasher. As mentioned earlier, though, the reduced flow rate may result in even more wasted water. When you cut the flow rate in half, you double the time it takes for hot water to reach the fixture. Potable water ECM circulators are available for domestic recirculation lines with one or more hot buttons where the user pushes the button prior to using the fixture. Can I leave a gas water heater in place when remodeling a garage into a family room or bedroom? Right now, I have a 3/4 copper pipe running all the way to the kitchen. Display posts from previous: All postsLast dayLast 7 daysLast 2 weeksLast monthLast 3 months6 MonthsLast year, Sort by AuthorPost time I had to tear out the whole tile shower as we only had a dribble on the handheld shower. I might have a problem doing that with the hot as it comes from a combi furnace and I believe the only hot outlet is 1/2" so making it 3/4" a foot from the 1/2" outlet and then maintain 3/4" all the way to the faucets/shower would be a waste of time, correct ? My thought was that even though the cold was off there was still some cold water somehow mixing with the hot. Does a tankless water heater in an attic require a drain pan? BONUS no fittings or connections inside wall and ceiling assemblies. It seems to me that a bypass valve at the remote point using the existing umbing is going to offer a more environmentally friendly solution than adding a second water heater in many cases.
The hot water also has to fight against the cold pipes and warm those up for 80 ft, right? You just have to pay a fee. Retrofit can be fairly easy in many cases if plumbing is accessible in basements or crawl spaces. Insulating the hot water pipe with rubber pipe insulation will make a huge difference in cutting down the time for hot water arrival at the tap. Norman, tell me more about this system. How can I tell if a water heater is HUD-approved for mobile/manufactured homes? Most of the websites offering solutions to this problem online are from plumbing companies. Be wary of their advice because many of them want to sell you a tankless water heater or recirculation pump. Some even tell you to install fixtures with higher flow rates. That last one is really annoying because weve had low-flow fixtures for nearly 30 years now. This is a major expense, which is why they go with smaller heaters with what we would consider uncomfortably low flow rates. Are water heaters required to be raised off the floor?
Can a Temperature and Pressure Relief (TPR or T&P) valve be mounted to discharge horizontally? Does that statement suggest that if I take the 1/2" hot water supply from the furnace and a couple of feet away from that connection to the furnace I convert the 1/2" to 3/4" I will see a noticeable difference if I keep that 3/4" all the way to the shower fitting where it has to go back to 1/2" to connect to the shower fitting ? Same goes for city water supply. Continue readingat CLOGGED SUPPLY PIPES, DIAGNOSIS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Get a tank. Standard these days is 3/4, standard used to be 1/2. For these I use a thermo-loop system that recirculates the HW without a pump. If anything the pressure is even lower than before. Shark Bites won't make a notable difference in flow rate; they very slightly crimp the tubing. Allison Bailes of Atlanta, Georgia, is a speaker, writer, building science consultant, and the founder of Energy Vanguard. The numbers for copper piping pressure drop as diameter changes will be similar. That reduction in diameter when changing to PEX or when including ANY PEX in the piping run can show up as a complaint of a weaker shower flow just as youve suggested. David, Im interested in doing the same for my kitchen faucet because it takes too long to get hot water due to low flow (1.8 gpm) and about 20 ft of 1/2 tubing. Can you wire a 240-volt water heater with 120 volts? In the winter, it takes 4-5 minutes to get up to temp. 
System Replacement What is the purpose of a thermostatic mixing valve above a water heater? What is the difference between a manufactured/mobile home water heater and a regular water heater? Im going to redo my whole hot water distribution next year when I remodel my basement, but that fix would work in my house. flexible water heater gas line The low flow fixtures we use now certainly save water. marey pp220 tankless This improvement may be of most value where water pressure is poor and where water piping has previously become clogged by rust or mineral deposits. When was a gas water heater first required to be elevated 18 inches above a garage floor? End the manifold with a cap, not a 90 degree bend The first part of the problem is excessive pipe lengths. The result: Im planning on upgrading the 1/2 to 3/4 behind all the showers (clustered above the heater), possibly doing homeruns.
A high speed on demand pump can use the cold water line for the return. Why do water heaters have a sacrificial anode? I wanted to do a manifold with homeruns for all fixtures but didnt have enough space in the house. Often mineral scale or debris clog the shower head; cleaning that may be enough. gas connector mip fip eastman stainless steel heater water flexible inch length silver Ooh! Notify me of comments via e-mail. Why is my water heater making strange (rumbling, gurgling, knocking or banging) noises? Well, the hot water problem has gone but now I have lower pressure from the shower.
And 3/8 pipe holds 2.25 times as much water as 1/4. Great idea Deniz, but as always it comes down to how much money you got kid? Perhaps some day when the cost of wasted water and energy becomes a bigger expense (or more people actually give a sh-t), it will result in innovative ideas like you are suggesting. What does it mean when a water heater Temperature/Pressure Relief (TPR) discharge pipe is "trapped"? What's the valve with the flip-up handle on the water heater for? Get my towel and shower stuff together. Some of the older houses in town, though, piped the entire hot water system in 1/2, to get the hot water faster and cut down on waste., . A really stupid layout, but it is what it is. What are the most common installation mistakes with water heater replacement? %PDF-1.5 % Yes, there is some loss, but the HPWH is very efficient and I can control the amount of circulation (and thus loss) through the valve at the WH. Any recommendations for the DIY guy? The flow rate for a given water heater depends on inlet and outlet water temperature. H0EBD\'NdXTSK,`8{LRE]=/C{cB #9f1LM So, after installing a new element and anode, we changed to just turning it in for shower use, and had to wait for the tank to heat. Replies to my comments The actual amount of wasted water, however, is often greater than the water sitting in the pipes. A traditional hot water recirculation pump requires a return loop. This insulation works well with this tubing: https://www.grainger.com/product/TUNDRA-1-2-in-Thick-2CKG5?searchQuery=2CKG5&searchBar=true In general, the greater the percentage of smaller diameter piping in a water system the greater the reduction in flow rate, all other factors (such as pressure, total piping length, number of elbows, valves, etc. ) Just wondering if anybody here changed their piping size when the tank was replaced and noticed any upgrade in performance. Hot water pipes rarely take the shortest distance from the water heater to a fixture. What is the difference between a single element and dual element electric water heater? Luba, tankless electric water heaters use a lot of current and arent very efficient. It would barely last through my wifes hot showers, at which point the incoming water to the mini-tank from our main WH would be warm not hot. Being 85 ft from the main WH, with uninsulated 3/4 copper pipes buried in the soil under the slab (cold and hot close to each other), it is no wonder.
David, I think the key here may be the use of PEX. The kitchen is the one at the end of the line. Efficient design. This is a pet peeve of mine and so many homeowners. By the way, if you need to go further than 25 feet to your faucet, I suppose 3/8 PEX tubing would work also with different adapters. The original piping is still installed and can be used with the turn of a valve. I used this as a starting point: https://www.buellinspections.com/re-circulating-hot-water/. Will And yes, recirculation heat losses can be significant, depending on how many minutes the pump operates, whether hot water pipes are insulated and the R-value, whether hot water pipes are routed through unconditioned space, and how cold that space gets. but other than reducing the length, most folks should be INCREASING the diameter of their pipes unless you like water hammer or have less than 60 psi of pressure. 3/8 would work to the vanities for sure. https://www1.eere.energy.gov/solar/pdfs/sda_saving_water.pdf. get rid of small diameter line refrigerators, and dishwashers especially! Does a tankless water heater in an attic require a drain pan? Here is the link for the pump: https://www.amazon.com/gp/product/B08TQJHPXK/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1. Percent decrease in cross sectional area going from copper to PEX is about the same as the percent reduction in water flow through the piping, if all other factors are kept equal: Pexuniverse gives nominal pressure drosp in psi per 100 ft. of tubing length for several flow rates from which we excerpt below. All of this without giving my town a dime for wasted, cold water. However, I believe most codes still require the use of arrestors with PEX. The hot water fixture rating of a bathroom is 1.5 fixture units, and a kitchen with sink and dishwasher adds 1.9 fixture units Thats 3.4 already, and we havent even added a laundry at 1.8 fixture units. Moreover, most dishwashers have an internal heater that raises the water temperature as necessary. My pipes run under a slab and is uninsulated, when is the EPA going to make insulating hot water pipes mandatory in New home construction? Before putting it on I drilled out the restrictor and it's made a huge improvement. We tee off the water heater and homerun to the master shower, then the vanities with a 3/4 inch manifold to feed all the heads and reduce to 1/2 inch to the vanities. What is the difference between a regular water heater and a power vent water heater? Page top sketch illustrating the effects of changes in pipe diameter, courtesy of Carson Dunlop Associates, a Toronto home inspection, education & report writing tool firm. Water Heating Is a System, Not Just a Water Heater, The 3 Types of Energy Efficiency Losses in Water Heating, Down the Drain! I dont know how big a difference it makes, but we use pressure compensating shower heads that deliver 1.5 gpm from 30 to 80 psi. Code requirements cited may have been changed in a newer code edition, or may not yet be adopted in your area. In any event, the shower fitting itself is 1/2" so wouldn't that create it's own bottleneck anyway ? After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. 
Our 1903 Vic did and it seemed odd until we realized it addressed this very issue, time to get hot water to the place of use quickly with little loss of heat. Can you use a light switch for a water heater disconnect? https://www.iapmo.org/water-demand-calculator. Correction: to any fixture allowed by code and that you are concerned about wait times. It does not increase the total volume of hot water that is available from a water heater.
I have now since swapped out the shower head for a brand new head, albeit low budget, from Home depot. HW8}]|f. But I am working with less than 60psi (well water), 80 feet from the water heater, and 20 is in an unconditioned garage. It simply reduced the flow rate while leaving the same amount of water to push through before hot water can arrive. Happy plumbing! My understanding is that the ProPEX lines are able to absorb the shock caused by water hammer in many cases without the need for arrestors. I can live with that. Thank you for the assistance and the subsequent comments on the theory that the PEX is causing a lower pressure at the shower head. flexible connector fittings water line heater gas supply About the shower head: it is probably a low-flow shower head as most are currently; at low water supply pressure systems where going to a low-flow shower head gives unacceptable water flow for bathers, I either pull out the restrictor in the shower head (usually it's right in the screw-on fitting) or if necesssary I drill out the opening into the shower head at its connector. water heater sharkbite valve hose connector ball braided stainless steel fittings push fip fitting shark connect plumbing upc upcitemdb connectors What's that powdery crust on the pipe connections at the water heater? If this were HVAC ductwork we would be talking about the heat lost to the piping and from there to the attic as the fluid slowly runs through.. What about heat mass? Most homes will need 3/4. I am (sorry to say) far too familiar with the effects on water flow rate (popularly called "water pressure") of reductions in the diameter of a supply pipe, thanks to a lazy local Poughkeepsie plumber who used 1/2" instead of 3/4" ID PEX on a job. I dont quite understand what youre doing. I have to assume that the PEX is causing a reduction in volume which manifests itself as low pressure at the shower head..I guess I'm getting some soldering practice in the near future. Is it alright to have a shut-off valve on both the hot and cold water pipes at a water heater? 
There is another hot water distribution retrofit that should be mentioned: bypassing the existing 3/4 and 1/2 pipes with 1/4 pex tubing directly from the water heater. FIP x 18 in.,Stainless Steel, LASCO 10-1221 Flexible Coated Gas Water Heater Supply Line, 12-Inch, 1/2-Inch OD Connector with 1/2-Inch MIP X 1/2-Inch FIP Fittings, SharkBite 18 Inch Water Heater Connector, 3/4 Inch MIP x 3/4 Inch Push To Connect, Flexible Corrugated Stainless Steel, SS3134FX18LZ, EZ-Fluid 1-Inch FIP x 3/4-Inch FIP x 24-Inch Corrugated Flexible Stainless Steel Water Heater Connector For Female Iron Water Pipes Fitting (2-Pcs), Eastman 48231 Flexible Stainless Steel Braided Water Heater Connector, 3/4-Inch FIP X 3/4-Inch Push-Fit Connection, 24-inch Length, HIGHCRAFT GUXD-C56-46E 24 Inch Lead Free Braided Water Heater Connector with 3/4'' Inner Diameter & 3/4'' FIP x 1 Inch FIP Fittings, Maximized Corrosion Resistance and Performance, Eastman 0437736 Corrugated Copper Water Heater Connector, 36 inch Length, EZ-Fluid 12-Inch Stainless Steel Braided Water Heater Connector Hose for Female Iron Water Pipes Fitting, 3/4-Inch FIP x 3/4-Inch FIP, Eastman 0437124 Stainless Steel Corrugated Water Heater Connector, 3/4" FIP x 3/4" FIP, 24" Length, Red and Blue, SharkBite 3/4 Inch x 3/4 Inch FIP x 18 Inch Stainless Steel Braided Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U3088FLEX18LF, Flextron FTWC-S34-18F 18" Corrugated Connector for Water Heater with 3/4" FIP and 3/4" Pex Ends, Stainless Steel, Water Heater Pilot Assembely Includes Pilot Thermocouple and Tubing LP Propane, Flextron FTGC-YC34-36P 36" Flexible Yellow Epoxy Coated Gas Line Connector with 1" Outer Diameter and 3/4" FIP x 3/4" MIP Fittings, Stainless Steel, 2-Pack Premium Stainless Steel Washing Machine Hoses - 5 FT No-Lead Burst Proof Water Inlet Supply Lines - Universal Connection - 10 Year Warranty, MCAMPAS 48" Safety-Shield Gas Appliance Kitchen Flexible Hose Connector Kit-5/8"Inner Diameter Gas Line,1/2" FIP.1/2"MIP.3/4"MIP Gas Flex Connector For Garage Heaters, Gas Stoves,Water Heater, PROCURU 1" OD x 60" Long x 3/4" MIP x 3/4" FIP Gas Flex Line Connector Kit, WeatheProof Max-Flow High Capacity Stainless Steel with SafeGuard Coating for Tankless Water Heater, Frost King HC30A Automatic Electric Heat Kit Heating Cables, 30', Black, Seleq Corrugated Stainless Steel Water Heater Supply Line 3/4 24" Set of 25, EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology, Eastman 48252 Flexible Stainless Steel Water Heater Connector 3/4" FIP Swivel, 24" Length, Silver, K&J Premium 6ft Washing Machine Hoses Burst Proof 2 Pack - Hot and Cold Water Supply Hoses for Washing Machines (Stainless Steel), Eastman 0437024 Corrugated Stainless Steel Water Heater Connector, 24-Inch, Stainless, All customers get FREE Shipping on orders over $25 shipped by Amazon. we teed a 3/4 line off the water heater and got in the master vanity base above. It had got to the point where you could comfortably take a shower just in hot water while the hot in the sink would scald my hand after a second. I think you convinced me to run it in parallel, just so I have the option if I get frustrated with delays in the future. Why not go that route?? You can also subscribe to all comments without commenting. Its just a question that has been in my mind, probably since I am thinking of both systems. Can you use a light switch for a water heater disconnect? I have 1 pipes running to the 2nd floor, cold and hot (140 F). How to get more water "pressure" or how to improve water flow rate (gpm or lpm). In sum, larger diameter piping increases water pressure and flow. They establish efficiency standards for hot water heaters, HVAC, and home wall and attic insulation but let efficiency down the drain with hot water. Hot water: 120 F. Also the HPWH is scheduled to run 120 when we most need it, 110 the rest of the time, except a one hour 140 each date to kill any germs in the tank.
A win-win, especially since we do not find it necessary to take showers every day, and only use a master bath vanitys hot water perhaps 10 times a week. How do I determine if a water heater is gas or electric? What is required clearance for access and working space in front of an electric water heater? Having taken Gary Kleins class several times on Structured Plumbing, Im convinced of the many benefits of hot water planning at the design stage. To elaborate further on my last comment, the concept you raised has been realized a couple of ways. Here are a few solutions to the hot water delivery problem, starting with the most comprehensive. What are the mistakes to avoid when doing attic improvements? My home is so bad I have installed a recirculating pump that pushes cold water sitting in the hot water pipe into the cold water line I remotely turn on and off when I use the shower. get a recirculation setup, and save your plumbing and appliances. But the funny thing is I use 1/4 pex tubing to all of my hot water faucets directly from the water heater and get no water hammer what so ever. Elbows are critical, especially with multiple heads in a shower. I see that Uponor sells 1/4 tubing but does not sell 1/4 expansion heads or rings. A heater must be sized for the coldest expected inlet water temperature, which varies widely by region and water source. Does a tankless water heater require a pressure relief valve? Why is an older water heater an insurance problem? I used Sharkbite PEX-B tubing. For the hot water, my current thinking is tankless with demand recirculation. Allrightsreserved. Save my name, email, and website in this browser for the next time I comment. Also I dont have good use for those gallons of cold water. You may regain some of this loss by insulating hot water supply piping or by setting water heater or boiler temperatures higher as well as by an adjustment at. I say match what the cold water uses, otherwise you risk creating an imbalance between hot and cold when the water pressure fluctuates. Could be wrong but that system seems more complex than a POU heater.. At this point; Im just trying to decide between a small electric tank or tankless to serve a kitchen faucet and dishwasher. As mentioned earlier, though, the reduced flow rate may result in even more wasted water. When you cut the flow rate in half, you double the time it takes for hot water to reach the fixture. Potable water ECM circulators are available for domestic recirculation lines with one or more hot buttons where the user pushes the button prior to using the fixture. Can I leave a gas water heater in place when remodeling a garage into a family room or bedroom? Right now, I have a 3/4 copper pipe running all the way to the kitchen. Display posts from previous: All postsLast dayLast 7 daysLast 2 weeksLast monthLast 3 months6 MonthsLast year, Sort by AuthorPost time I had to tear out the whole tile shower as we only had a dribble on the handheld shower. I might have a problem doing that with the hot as it comes from a combi furnace and I believe the only hot outlet is 1/2" so making it 3/4" a foot from the 1/2" outlet and then maintain 3/4" all the way to the faucets/shower would be a waste of time, correct ? My thought was that even though the cold was off there was still some cold water somehow mixing with the hot. Does a tankless water heater in an attic require a drain pan? BONUS no fittings or connections inside wall and ceiling assemblies. It seems to me that a bypass valve at the remote point using the existing umbing is going to offer a more environmentally friendly solution than adding a second water heater in many cases.
The hot water also has to fight against the cold pipes and warm those up for 80 ft, right? You just have to pay a fee. Retrofit can be fairly easy in many cases if plumbing is accessible in basements or crawl spaces. Insulating the hot water pipe with rubber pipe insulation will make a huge difference in cutting down the time for hot water arrival at the tap. Norman, tell me more about this system. How can I tell if a water heater is HUD-approved for mobile/manufactured homes? Most of the websites offering solutions to this problem online are from plumbing companies. Be wary of their advice because many of them want to sell you a tankless water heater or recirculation pump. Some even tell you to install fixtures with higher flow rates. That last one is really annoying because weve had low-flow fixtures for nearly 30 years now. This is a major expense, which is why they go with smaller heaters with what we would consider uncomfortably low flow rates. Are water heaters required to be raised off the floor?
Can a Temperature and Pressure Relief (TPR or T&P) valve be mounted to discharge horizontally? Does that statement suggest that if I take the 1/2" hot water supply from the furnace and a couple of feet away from that connection to the furnace I convert the 1/2" to 3/4" I will see a noticeable difference if I keep that 3/4" all the way to the shower fitting where it has to go back to 1/2" to connect to the shower fitting ? Same goes for city water supply. Continue readingat CLOGGED SUPPLY PIPES, DIAGNOSIS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Get a tank. Standard these days is 3/4, standard used to be 1/2. For these I use a thermo-loop system that recirculates the HW without a pump. If anything the pressure is even lower than before. Shark Bites won't make a notable difference in flow rate; they very slightly crimp the tubing. Allison Bailes of Atlanta, Georgia, is a speaker, writer, building science consultant, and the founder of Energy Vanguard. The numbers for copper piping pressure drop as diameter changes will be similar. That reduction in diameter when changing to PEX or when including ANY PEX in the piping run can show up as a complaint of a weaker shower flow just as youve suggested. David, Im interested in doing the same for my kitchen faucet because it takes too long to get hot water due to low flow (1.8 gpm) and about 20 ft of 1/2 tubing. Can you wire a 240-volt water heater with 120 volts? In the winter, it takes 4-5 minutes to get up to temp. System Replacement What is the purpose of a thermostatic mixing valve above a water heater? What is the difference between a manufactured/mobile home water heater and a regular water heater? Im going to redo my whole hot water distribution next year when I remodel my basement, but that fix would work in my house. flexible water heater gas line The low flow fixtures we use now certainly save water. marey pp220 tankless This improvement may be of most value where water pressure is poor and where water piping has previously become clogged by rust or mineral deposits. When was a gas water heater first required to be elevated 18 inches above a garage floor? End the manifold with a cap, not a 90 degree bend The first part of the problem is excessive pipe lengths. The result: Im planning on upgrading the 1/2 to 3/4 behind all the showers (clustered above the heater), possibly doing homeruns.
A high speed on demand pump can use the cold water line for the return. Why do water heaters have a sacrificial anode? I wanted to do a manifold with homeruns for all fixtures but didnt have enough space in the house. Often mineral scale or debris clog the shower head; cleaning that may be enough. gas connector mip fip eastman stainless steel heater water flexible inch length silver Ooh! Notify me of comments via e-mail. Why is my water heater making strange (rumbling, gurgling, knocking or banging) noises? Well, the hot water problem has gone but now I have lower pressure from the shower.
