I look forward to your feedback and have a good day. The only way to power an oven in your shop that can get up to the required temps to powder coat is (in a reasonable time) is to reduce the size of the oven enough so that it can reach the required temps, at LESS than 25 A. For 20,000 watts, you'll need 4 5000 Watt heating elements. At 3x3x3, it may be small enough that you can get away without any circulation. In looking at your blower setup, I was having trouble seeing how the air circulates as it exits the triangular chamber. 
Let's Get Started - Framing Materials & Tools, How to Build a Powder Coating Oven Part II, Milwaukee M12 Cordless Electric Rivet Gun, pack of 1000 3/16" diameter x 1/8" grip steel pop rivets, Monitor Temperatures using an Infrared Thermometer, Cleaning and Degreasing before Powder Coating, Powder Coating: Perfect for Car Restorations, Welcome to Powder Coating: The Complete Guide, If using the porcelain light fixture linked above, drill a ~2 1/8" hole into the center of one 6" duct cap using a. I would advise you to join the Caswell plating forums and ask this question in the oven building section. Hey Sean, I wanted to start by saying thank you for spending the time to make this website and to share your experience's with everyone. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. I don't think using fiberglass insulation is a good idea. I hope it helps though. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. It is better to drape an metal panel in front of the heating elements to prevent direct heating.cheers. You are right, the 25 gauge is very thin, but it is what the builder of this oven did use, and you'll notice that he doubled them up almost everywhere which greatly improves the strength. 67 west Lakewood Dr.
Thanks for taking the time to share this. Just something to provide an air gap underneath. The temperature probe is built into the inside wall of the oven to prevent damage. Set up a panel in your set up, where fibreglass is the insulation. Again this will loose too much heat.It would be much better to have a totally separate duct secured to the inside of the unit thus it will be insulated within the external wall.Also the ducting should draw air from the bottom of the oven chamber and blow it to the top. However at that point, they will be pulling about 83 amps so the standard 60 watt breaker won't do. The perfect Powder Coating Booth for a business or serious hobbyist who wants to cure wheels, ATV frames, rears, motorcycle parts and more! hi ! Building a lot smaller oven (3x3x3) and dont really need the much cfm and not really 100% sure Its needed. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. If you were to use 3000 Watt heating elements, you would need between 8 and 12 of them. I love this guide, thanks for putting it together. If a person employs fasteners in both directions (to/away heat source), a person can further reduce heat transfer.If one is building with steel 2x4s, you might have a 2x1 on the inside (and 2 aerogel layers), the 2x4 (and 2-4 aerogel layers), and then your outer surface. I did not see another reply so I'm adding mine. Powder Coating: The Complete Guide is an educational site for powder coaters. Thanks again for the help! If you had such an arc, you need to improve your wiring skills because at that point the loss of insulation is the least of your potential troubles. That alone will cost you almost $300 if you are able to do it yourself; about $500 if you need to hire an electrician. You could use the steel if you want to shape it, but using the pre-fabbed ducts are a lot easier and ensure a good seal. But it is my understanding that they work on more of a line-of-sight basis than to actually heat up the entire oven to the proper temperature. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. This size also Comes with dual circulation fans to ensure exceptional heat circulation. I have yet to see anyone actually do any blueprints or drawings of their powder coating oven builds. Hello powder coat guide, first off thank you . My concern is how much higher will the temp be on portion of the substrate hanging in front of heating elements vs. the portion that is not, is this a valid concern ? could you go a little more in depth on the wiring? Check your PID to make sure you don't over load it on controlling the SSR's SSR use some power to control them. How big are the squares you built for the heating elements? You would have to wire it to two breakers. I would re-purpose a convection oven fan. I am in the process of building the exact oven. If you google, at what temperature does galvanized steel start to become toxic it will say 390 degrees. A taller oven allows you to coat longer parts without using multiple hooks like a horizontal oven would. This panel will feature illuminated control switches, cooling fan and upgraded programmable shutoff timer., this listing is i specifically for the oven build upgrade. Hi, just wondering?Are you not afraid that the fan will blow the powder coat off? Is there a posibility to get the wireing plan again because the link does not work. It is very common to use 18 to 22 gauge sheet metal when building powder coating ovens. I'm working on a similar project, but it will need to be much larger dimensions(12'x12'x9'). We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. It would be best if the heating element connections where not in contact with the insulation. This oven uses a PID controller to control the heating elements and it is constantly adjusting the temperature so you will have much more stable oven temps. Hey also I've been calling around to acquire some sheet metal and they are all telling me that 20 gauge sheet metal won't work for this type of application because of the heat. I have two PID's and three 2500W elements total (one upper, one lower, one convection). This is my Go2 reference. As long as your PID settings are dialed in correctly, I would say that you just need a little bit more wattage from your heating elements. coating hackaday Using an equation I found, it came out to 1,700cfms but I don't know how accurate that is since the equation did not include the amount of air changes per hour or anything like that. Powdercoatguide.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Installation of the Circulation fan:The circulation fan is 150 cfm and is suggested but not required. I am a carpenter, so the how to was easy to follow. 1800-watt Infrared Lamp for curing small parts to large housings, 10"x30" Infrared Lamp for curing big parts; includes stand, Eastwood Non-Contact Infrared Thermometer, Measures from -22 to +500 degrees F without contact. Do not use water heating elements. The temperature probe is built into the inside wall of the oven to prevent damage. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. They are 3 5/8" wide x 1 5/8" thick and are available in 10' lengths or 8' lengths. That's the normal outlet used for heavier air conditioners in the home.Never actually load a home circuit at more than about two thirds of constant current!Neither is useful for 8,000 watts, obviously.Using the simple formula of volts x amps, we get the amount of watts a circuit can handle.Switching that around a bit we use watts divided by amps to get the voltage and, Watts divided by voltage to get the amps.Therefor we can use 8,000 watts and divide it by 220 volts to get 36.37 amps. Am now ready to duct the exhaust fan area between the studs, but can't figure out from the pictures what was used to duct that up, can you just use excess pieces of the 20 gauge we are using for the rest? I know there are steps to take to make sure the walls don't get to hot. Just to be sure when put 2 metal stud and metal track you put to make kind of squard or in the same direction. - Create a more typical Convection design by enclosing elements in the walls and use the circulation fan to push air through the elements and into the oven heating space through vents leaving no elements exposed. i have a question as to how much is the cost of this oven. My costs are looking very good as I could finish up only spend a quarter of the costs for a comparable oven of a lesser spec. We provide commercial and residential services specializing in powder coated ovens. I'm trying to learn the PID and SSR. Unfortunately, I do not have many details or a schematic for this oven build. We have the frame up and the inside skinned. This build uses 20 gauge steel everywhere except the floor, the floor uses 16 gauge steel. There are wiring diagrams available though such as this: http://forum.caswellplating.com/forum/powder-coating-questions/oven-building-forum/11867-oven-controls-build. You can tell as the 20 amp outlets have a horizontal cut in one of the slots as well. I AM WORKING WITH AN ELECTRICIAN AND HOPE TO BE UP AND RUNNING IN ABOUT A WEEK OR SO. Great write up! This oven is built and tuned in house ready to to be piped in and tuned by your mechanical contractor. Is there a PDF version of the article for download and printing? Is my thurmocouple in a bad location? Our 8' x 8' x 16' gas fired curing ovens meet all requirements to make them a Class A oven. However, thinner sheet metal will allow the oven temperature to fluctuate more after it is heated up. I think the lifespan of the fan motor would be much better mounted near the top of the stack duct opening on the RH side of the oven. oven powder coating electric However, you can definitely opt for thicker gauge studs, you just may have more trouble finding them as I believe the 25 gauge studs are the only kind sold in the local big box stores. And, you'll be pulling out the insulation anyway in order to fix the arcing problem.I think you are over thinking the insulation issue. Hi, would A top mounted fan still be the best location if I use a propane burner in the bottom instead of electric elements? Instead of using the 3 1/2" studs one the 3 walls and the top, what about using 6" studs. For the best experience on our site, be sure to turn on Javascript in your browser. Is it basically just a thermostat that controls the burner electrically? Or something similar. What do you estimate the total cost of the finished oven will be? In use, there is a difference, and any fractional savings in making an oven will become apparent.XWhat is commonly the largest barrier to heat transfer, is the presence of interfaces. On units 20' and longer an additional circulation fan is installed for ensured heat circulation. Have you had any problems with the fiberglass in your build? That's too close, and you would really need at least a 50 amp circuit, 60 amps being better. 4ft urps mounts These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. I did this build minus the lights, door hole and circulation fan. Our 8' x 8' x 30' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch rock wool insulation sheeted with G90 galvanized sheet metal. The oven in this build with all of the bells and whistles ended up costing the builder $1,400 USD. curing lpg If it were to use 1500 watt heating elements, it would then require 5.33 heating elements. They are easy to drill and they can be cut with tin snips or a chop saw. what would the cost be to build an oven that is 10' wide by 8' high by 40' long?? The temperature probe is built into the inside wall of the oven to prevent damage. Thanks for putting the work into it. Lamps can be used to cure powder coating, however it is not as simple as pointing a lamp at a part. I'm building a large 6x7x18, 750 square ft oven. I'm in the process of mounting my elements and the connections would be a few inches into that insulation for the floor of the oven. Our Element covers are a great way to protectourself from damaging your elements or burning yourself when moving parts in in and out of your electric curingoven. The actual controls and wiring make up around $100-$150. Do you have a better view of the actual air flow path? I know to some that is the only way to go (plan and build) but I have been known to successfully use the "Adaptive Design Method" a.k.a. Interested in building this exact size for my shop, but have a question first: When using PID controllers, can the PID limit the amperage drawn by the elements? i would like to know a rough estimat eon materials if possible thanks in advance . just don't max out the SSR. Our 10' x 10' x 20' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch rock wool insulation sheeted with G90 galvanized sheet metal. Your help would be greatly appreciated. Can someone help with that .? The temperature probe is built into the inside wall of the oven to prevent damage. Can anyone help me with the blue print on the wireing up the control box. Hope that helps! If we make that inner thing a 2 inch thick thing, we are now insulating a (nominally) 6 inch space. Also use countersunk rivets for building the framing and domed rivets for attaching the sheet metal to the studs. Comes with a protective louvered cover. I made mine 36x36x72 and I'm making a rolling rack system and a sliding rack system for it. I feel that it won't last long at that temp. Our 6' x 6' x 16' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch thick walls with rock wool insulation sheeted with G90 galvanized sheet metal. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Here is exactly what I am talking about: http://eyecit.net/?page_id=590 (copy and paste in browser). Hope this helps. Yes some people have added shields over the elements to prevent radiant heat from over curing the powder. Now do the same for mineral wool. Then frame the assembly you have made with the same steel studs that have been used throughout the oven build. Will a fan even be needed since the burner will provide air flow? powder coating oven ovens cure coat curing turnaround repairs Awesome article. The temperature probe is built into the inside wall of the oven to prevent damage. to studs. If one looks at the hot side at the location of a steel stud, and has the inside surface, a layer of aerogel, a layer of steel, more aerogel, another layer of steel, and so on, all held together by a stainless steel connector (stainless is much worse at transmitting heat than ordinary carbon steel), at some point a person becomes limited by the heat transmission through the stainless steel fasteners. For an oven this size, it takes ~8000 watts worth of heating elements to get it up to temp in a reasonable amount of time. 1000w element(100w/cu.ft. The piece that angles the duct from the wall to the top is called a stack duct elbow. Our 6' x 6' x 6' gas fired curing ovens meet all requirements to make them a Class A oven. It uses 4 2000W heating elements to accomplish this, which pull a total of 33.33 amps at steady state (there is a higher current draw when the heating elements are turned on). Wondering could you provide more details about the wiring of the unit please. Using the BTU calculator, it is showing that you will need 20,000 Watts of heating to go from 65 degrees F to 500 degrees F and it will take 55 minutes. I have never messed with steel studs before, but 25 gauge seems awfully thin. Thank you for taking the time to put this together. this will maximize heat distribution and reduce hot layering.another point is that the elements should not be in direct view of the parts being heated as the infrared heating of the items will have a hot spot. I have not ordered my heating elements and want to keep building the walls. Would a side mount fan hurt the circulation too much? I am only powder coating for my self. Unfortunately, this is an area that I am not particularly well-versed in.
Let's Get Started - Framing Materials & Tools, How to Build a Powder Coating Oven Part II, Milwaukee M12 Cordless Electric Rivet Gun, pack of 1000 3/16" diameter x 1/8" grip steel pop rivets, Monitor Temperatures using an Infrared Thermometer, Cleaning and Degreasing before Powder Coating, Powder Coating: Perfect for Car Restorations, Welcome to Powder Coating: The Complete Guide, If using the porcelain light fixture linked above, drill a ~2 1/8" hole into the center of one 6" duct cap using a. I would advise you to join the Caswell plating forums and ask this question in the oven building section. Hey Sean, I wanted to start by saying thank you for spending the time to make this website and to share your experience's with everyone. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. I don't think using fiberglass insulation is a good idea. I hope it helps though. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. It is better to drape an metal panel in front of the heating elements to prevent direct heating.cheers. You are right, the 25 gauge is very thin, but it is what the builder of this oven did use, and you'll notice that he doubled them up almost everywhere which greatly improves the strength. 67 west Lakewood Dr.
Thanks for taking the time to share this. Just something to provide an air gap underneath. The temperature probe is built into the inside wall of the oven to prevent damage. Set up a panel in your set up, where fibreglass is the insulation. Again this will loose too much heat.It would be much better to have a totally separate duct secured to the inside of the unit thus it will be insulated within the external wall.Also the ducting should draw air from the bottom of the oven chamber and blow it to the top. However at that point, they will be pulling about 83 amps so the standard 60 watt breaker won't do. The perfect Powder Coating Booth for a business or serious hobbyist who wants to cure wheels, ATV frames, rears, motorcycle parts and more! hi ! Building a lot smaller oven (3x3x3) and dont really need the much cfm and not really 100% sure Its needed. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. If you were to use 3000 Watt heating elements, you would need between 8 and 12 of them. I love this guide, thanks for putting it together. If a person employs fasteners in both directions (to/away heat source), a person can further reduce heat transfer.If one is building with steel 2x4s, you might have a 2x1 on the inside (and 2 aerogel layers), the 2x4 (and 2-4 aerogel layers), and then your outer surface. I did not see another reply so I'm adding mine. Powder Coating: The Complete Guide is an educational site for powder coaters. Thanks again for the help! If you had such an arc, you need to improve your wiring skills because at that point the loss of insulation is the least of your potential troubles. That alone will cost you almost $300 if you are able to do it yourself; about $500 if you need to hire an electrician. You could use the steel if you want to shape it, but using the pre-fabbed ducts are a lot easier and ensure a good seal. But it is my understanding that they work on more of a line-of-sight basis than to actually heat up the entire oven to the proper temperature. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. This size also Comes with dual circulation fans to ensure exceptional heat circulation. I have yet to see anyone actually do any blueprints or drawings of their powder coating oven builds. Hello powder coat guide, first off thank you . My concern is how much higher will the temp be on portion of the substrate hanging in front of heating elements vs. the portion that is not, is this a valid concern ? could you go a little more in depth on the wiring? Check your PID to make sure you don't over load it on controlling the SSR's SSR use some power to control them. How big are the squares you built for the heating elements? You would have to wire it to two breakers. I would re-purpose a convection oven fan. I am in the process of building the exact oven. If you google, at what temperature does galvanized steel start to become toxic it will say 390 degrees. A taller oven allows you to coat longer parts without using multiple hooks like a horizontal oven would. This panel will feature illuminated control switches, cooling fan and upgraded programmable shutoff timer., this listing is i specifically for the oven build upgrade. Hi, just wondering?Are you not afraid that the fan will blow the powder coat off? Is there a posibility to get the wireing plan again because the link does not work. It is very common to use 18 to 22 gauge sheet metal when building powder coating ovens. I'm working on a similar project, but it will need to be much larger dimensions(12'x12'x9'). We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. It would be best if the heating element connections where not in contact with the insulation. This oven uses a PID controller to control the heating elements and it is constantly adjusting the temperature so you will have much more stable oven temps. Hey also I've been calling around to acquire some sheet metal and they are all telling me that 20 gauge sheet metal won't work for this type of application because of the heat. I have two PID's and three 2500W elements total (one upper, one lower, one convection). This is my Go2 reference. As long as your PID settings are dialed in correctly, I would say that you just need a little bit more wattage from your heating elements. coating hackaday Using an equation I found, it came out to 1,700cfms but I don't know how accurate that is since the equation did not include the amount of air changes per hour or anything like that. Powdercoatguide.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Installation of the Circulation fan:The circulation fan is 150 cfm and is suggested but not required. I am a carpenter, so the how to was easy to follow. 1800-watt Infrared Lamp for curing small parts to large housings, 10"x30" Infrared Lamp for curing big parts; includes stand, Eastwood Non-Contact Infrared Thermometer, Measures from -22 to +500 degrees F without contact. Do not use water heating elements. The temperature probe is built into the inside wall of the oven to prevent damage. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. They are 3 5/8" wide x 1 5/8" thick and are available in 10' lengths or 8' lengths. That's the normal outlet used for heavier air conditioners in the home.Never actually load a home circuit at more than about two thirds of constant current!Neither is useful for 8,000 watts, obviously.Using the simple formula of volts x amps, we get the amount of watts a circuit can handle.Switching that around a bit we use watts divided by amps to get the voltage and, Watts divided by voltage to get the amps.Therefor we can use 8,000 watts and divide it by 220 volts to get 36.37 amps. Am now ready to duct the exhaust fan area between the studs, but can't figure out from the pictures what was used to duct that up, can you just use excess pieces of the 20 gauge we are using for the rest? I know there are steps to take to make sure the walls don't get to hot. Just to be sure when put 2 metal stud and metal track you put to make kind of squard or in the same direction. - Create a more typical Convection design by enclosing elements in the walls and use the circulation fan to push air through the elements and into the oven heating space through vents leaving no elements exposed. i have a question as to how much is the cost of this oven. My costs are looking very good as I could finish up only spend a quarter of the costs for a comparable oven of a lesser spec. We provide commercial and residential services specializing in powder coated ovens. I'm trying to learn the PID and SSR. Unfortunately, I do not have many details or a schematic for this oven build. We have the frame up and the inside skinned. This build uses 20 gauge steel everywhere except the floor, the floor uses 16 gauge steel. There are wiring diagrams available though such as this: http://forum.caswellplating.com/forum/powder-coating-questions/oven-building-forum/11867-oven-controls-build. You can tell as the 20 amp outlets have a horizontal cut in one of the slots as well. I AM WORKING WITH AN ELECTRICIAN AND HOPE TO BE UP AND RUNNING IN ABOUT A WEEK OR SO. Great write up! This oven is built and tuned in house ready to to be piped in and tuned by your mechanical contractor. Is there a PDF version of the article for download and printing? Is my thurmocouple in a bad location? Our 8' x 8' x 16' gas fired curing ovens meet all requirements to make them a Class A oven. However, thinner sheet metal will allow the oven temperature to fluctuate more after it is heated up. I think the lifespan of the fan motor would be much better mounted near the top of the stack duct opening on the RH side of the oven. oven powder coating electric However, you can definitely opt for thicker gauge studs, you just may have more trouble finding them as I believe the 25 gauge studs are the only kind sold in the local big box stores. And, you'll be pulling out the insulation anyway in order to fix the arcing problem.I think you are over thinking the insulation issue. Hi, would A top mounted fan still be the best location if I use a propane burner in the bottom instead of electric elements? Instead of using the 3 1/2" studs one the 3 walls and the top, what about using 6" studs. For the best experience on our site, be sure to turn on Javascript in your browser. Is it basically just a thermostat that controls the burner electrically? Or something similar. What do you estimate the total cost of the finished oven will be? In use, there is a difference, and any fractional savings in making an oven will become apparent.XWhat is commonly the largest barrier to heat transfer, is the presence of interfaces. On units 20' and longer an additional circulation fan is installed for ensured heat circulation. Have you had any problems with the fiberglass in your build? That's too close, and you would really need at least a 50 amp circuit, 60 amps being better. 4ft urps mounts These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. I did this build minus the lights, door hole and circulation fan. Our 8' x 8' x 30' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch rock wool insulation sheeted with G90 galvanized sheet metal. The oven in this build with all of the bells and whistles ended up costing the builder $1,400 USD. curing lpg If it were to use 1500 watt heating elements, it would then require 5.33 heating elements. They are easy to drill and they can be cut with tin snips or a chop saw. what would the cost be to build an oven that is 10' wide by 8' high by 40' long?? The temperature probe is built into the inside wall of the oven to prevent damage. Thanks for putting the work into it. Lamps can be used to cure powder coating, however it is not as simple as pointing a lamp at a part. I'm building a large 6x7x18, 750 square ft oven. I'm in the process of mounting my elements and the connections would be a few inches into that insulation for the floor of the oven. Our Element covers are a great way to protectourself from damaging your elements or burning yourself when moving parts in in and out of your electric curingoven. The actual controls and wiring make up around $100-$150. Do you have a better view of the actual air flow path? I know to some that is the only way to go (plan and build) but I have been known to successfully use the "Adaptive Design Method" a.k.a. Interested in building this exact size for my shop, but have a question first: When using PID controllers, can the PID limit the amperage drawn by the elements? i would like to know a rough estimat eon materials if possible thanks in advance . just don't max out the SSR. Our 10' x 10' x 20' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch rock wool insulation sheeted with G90 galvanized sheet metal. Your help would be greatly appreciated. Can someone help with that .? The temperature probe is built into the inside wall of the oven to prevent damage. Can anyone help me with the blue print on the wireing up the control box. Hope that helps! If we make that inner thing a 2 inch thick thing, we are now insulating a (nominally) 6 inch space. Also use countersunk rivets for building the framing and domed rivets for attaching the sheet metal to the studs. Comes with a protective louvered cover. I made mine 36x36x72 and I'm making a rolling rack system and a sliding rack system for it. I feel that it won't last long at that temp. Our 6' x 6' x 16' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch thick walls with rock wool insulation sheeted with G90 galvanized sheet metal. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Here is exactly what I am talking about: http://eyecit.net/?page_id=590 (copy and paste in browser). Hope this helps. Yes some people have added shields over the elements to prevent radiant heat from over curing the powder. Now do the same for mineral wool. Then frame the assembly you have made with the same steel studs that have been used throughout the oven build. Will a fan even be needed since the burner will provide air flow? powder coating oven ovens cure coat curing turnaround repairs Awesome article. The temperature probe is built into the inside wall of the oven to prevent damage. to studs. If one looks at the hot side at the location of a steel stud, and has the inside surface, a layer of aerogel, a layer of steel, more aerogel, another layer of steel, and so on, all held together by a stainless steel connector (stainless is much worse at transmitting heat than ordinary carbon steel), at some point a person becomes limited by the heat transmission through the stainless steel fasteners. For an oven this size, it takes ~8000 watts worth of heating elements to get it up to temp in a reasonable amount of time. 1000w element(100w/cu.ft. The piece that angles the duct from the wall to the top is called a stack duct elbow. Our 6' x 6' x 6' gas fired curing ovens meet all requirements to make them a Class A oven. It uses 4 2000W heating elements to accomplish this, which pull a total of 33.33 amps at steady state (there is a higher current draw when the heating elements are turned on). Wondering could you provide more details about the wiring of the unit please. Using the BTU calculator, it is showing that you will need 20,000 Watts of heating to go from 65 degrees F to 500 degrees F and it will take 55 minutes. I have never messed with steel studs before, but 25 gauge seems awfully thin. Thank you for taking the time to put this together. this will maximize heat distribution and reduce hot layering.another point is that the elements should not be in direct view of the parts being heated as the infrared heating of the items will have a hot spot. I have not ordered my heating elements and want to keep building the walls. Would a side mount fan hurt the circulation too much? I am only powder coating for my self. Unfortunately, this is an area that I am not particularly well-versed in.
