Profusion 7,500 watt

[dandan111]

Thinking about buying a heater. New construction. I had a 220 plug ran
To the ceiling. As far as I know it's standard wired 220 with two 30 amp
Breaker.
Will this work fine with this heater and can I have a wall thermostat installed
For it?
I will buy the heater and have a electrician wire it.
My garage is a 3 car with 12ft ceiling. My old house I had a Fahrenheit 5000watt
And loved it.
Any info please?

 

[Milton Shaw]

Normally I see a 5,000 watt on a 30 amp circuit. That 7,500 would require at least a 40 maybe a 50 to get it to the 80% rating. That would also require much larger wire. Also I don't know of any line voltage thermostats that would handle that much amperage, would take a low voltage thermostat, transformer, and a big relay to control that current.

 

[dw1]

Yep, Milton is correct, it will need a 40 amp circuit with # 8 wire. Might be able to get a 120 volt t-stat to pull the contactor in, that should work

 

[Jack D]

I just ordered parts to do what you are looking to do.

I can support a 5000 watt heater off my sub panel with a 30 amp breaker but to have a wall thermostat to handle the 21.5 amp load i ordered a specific 220 v switched circuit meant for electric heat. The switch circuit will supply 24v to a wall mounted thermostat and the thermostat will control the 220 volt input to the heater. This is the switching circuit.

I have yet to order a heater but I know that I will need to keep the heater at 5000 watts to keep my design within the specs. I also am looking to have a heater that is not designed to run the fan after the local thermostat terminates the heating element when it is satisfied.

 

[bop_pa]

I just bought a Porfusion 7500watt electric heater yesterday. I am also working to figure out how it needs to be hooked up. At 7500 watts, 240v, 31.3 amps, 25,589 BTU/hour. Instructions say it must be wired directly and with cooper only rated for at least 60 degrees (no plug). It also mentions a compatible with a 240v line voltage double pole wall thermostat.

I also have a 240 outlet but think I might just call an electrician friend to see if he might do the install. Of course I would pay him. Hope this helps

 

[R_einan]

I'm looking at doing a similar install in my shop. The King electric heater I'm looking at has its own built in contactor, so I think that switching circuit (same one I was thinking about) should do the trick for controlling even a 7500 w Heater with a low voltage termostat.

 

[matt_i]

For a circuit wired with #10awg you're going to have to drop down to 5kW.

If you look up the unit on Menards' website and read the instructions you'll find it specifies #8awg for 240vac operation and a 40A circuit. The 60 deg C wiring requirement is for typical NM-b "romex" wire.

Source: https://www.menards.com/main/heatin...olt-ceiling-garage-heater/p-1444432294118.htm

Having a plug/outlet combination is prohibited due to the potential danger of unplugging it under full load and drawing a nasty arc that could cause problems for people and equipment.

The unit does have its own thermostat but its not one that reads in "degrees F". It simply is a "dial" type thermal switch. With some experimentation you can probably arrive at a setting that works if you don't want to integrate the controls for a wall tstat.

 

[Catadj78]

I have 2 5000 watt coming tomorrow. I have 10/2 wire for each. I'm guessing I will need 2 more before it's over.

My thoughts for your situation is to have 2 as well. Im guessing it would help with heat distribution and save on wire.

I got mine off eBay. 97.99 each shipped if that helps

 

[dandan111]

Ok guys I thought maybe I was more set up for a 5000watt. I stopped and bought a Fahrenheit 5000watt. Loved it at the last house. Might be too small but I'll give it a shot.
Garage is attached to house and finished with dry wall. Insulated doors and no windows.
Instead of going up against 12 ft ceiling I might drop it down to 9ft.

 

[jekquist]

I installed mine at about 9-10 feet and have it pointed blowing down to help circulate. That helped, but the ceiling fan helped the most.