Dewalt 7500/10000 Electric Heater

[tealetm]

So I came upon a free Dewalt 7500/10000w electric heater I'd like to use in my 700sft woodshop with vaulted ceilings (10' to 14').

I have the correct 50a circuit run with 6ga wire and plan to mount the heater at about 9' from the floor on a shelf above my door so the heater points towards the center of the shop. I do have a large central ceiling fan which will push the warm air around the shop. Shop is insulated.

These heaters are really are meant to be sitting on the floor for temp heat but do do you think I'll have any issues heating the place? Just looking to keep it 50 deg or so in winter (upstate NY) while i'm in the shop. It has a thermostat on it I'm just not sure how low/hot it will adjust to.

Is it worth setting this heater up or would I be better off buying a ceiling hung garage type heater?

 

[fitter30]

3.41 btu's per watt
10k watts 34,100 butu's
Buy this for the same money

https://www.google.com/url?q=https://www.amazon.com/Dyna-Glo-EG10000DH-Electric-Garage-Heater/dp/B07KLF7DW6&sa=U&ved=2ahUKEwif9Oy4tbSBAxUZkokEHSkDDjIQFnoECAIQAg&usg=AOvVaw3LASqP92AL0OhW2UdzM5R_

 

[BrandonV]

I would think you'd need around 25k BTUs on the coldest day in Buffalo (for example). Assuming good insulation.

 

[BillK]

For free what can it hurt to try ??

 

[PoorUB]

The only concern I have is the DeWalt heater is probably 2-3 times larger than you need. I have installed 5,000 watt heaters in spaces twice the size and the heated just fine.

The heater will warm it up fast, the shut off, then turn on and blast hot air, shut off and cycle. A smaller heater will run more, but the temperature will be more constant with less highs and lows you will have with a larger heater.

 

[American Locomotive]

That will certainly heat the space. I'd finish insulating though.

 

[tealetm]

That will certainly heat the space. I'd finish insulating though.

Ha but of course. Its nearly finished now- all the walls are in and the paneling is up, just have to button the ceiling up yet.

 

[tealetm]

An update- just because.

Heater is wired and functions just fine. The thermostat seems to function fine on it for my needs- however the downside is that the fan doesn't seem to shut off when the thermostat kicks the heater off, so the fans runs all the time.

If I stick with this setup I may use a separate line voltage thermostat.

(yes, I will be tilting the heater to point down a bit)

 

[micromind]

Does the fan actually stay on continuously? A lot of heaters like this will have the fan stay running until the heating elements cool down, this can be a few minutes.

Does the fan take a bit to come on after the thermostat calls for heat? If so, there's likely a button-type thermostat (commonly called a 'limit switch') attached to or very close to the heating elements that controls the fan. If the fan is always on, either it's designed that way or this thermostat (limit switch) is bad.

 

[tealetm]

Looking at the electrical schematic for the heater I'm reading it as the fan motor is always on as long as the main switch is on.

Correct?

 

[BillK]

Looking at the electrical schematic for the heater I'm reading it as the fan motor is always on as long as the main switch is on.

Correct?

Appears that way.

 

[dandan111]

I wouldn’t want it up high but hey it’s plenty of heater and it was free. Use it!

 

[Crazyjake8493]

Unless you have a need to keep moving it, I would just go with a ceiling-mounted heater. Either one at that wattage is more than enough for 700 sq ft. I have a 5000/7500-watt ceiling heater (forget which brand) and it heats my 20x30 garage with no trouble. Gets it from 30 to 65-70 at the 5000 watt setting even in the middle of winter.

 

[mm08822]

Dont forget to blow the heater out with compressed air before the heating season and anytime after making a lot of dust.

 

[tealetm]

Yes- agree that mounting up high isn’t optimal but I’m worried about tripping over it or something flammable inadvertently being leaned in front of it in the ground by me or my kids.

It’s working fine so far but probably won’t be my permanent solution.