Heating garage

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Forum topic by llanaro posted 01-08-2010 08:33 PM 1587 views 0 times favorited 6 replies Add to Favorites Watch
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16 posts in 4306 days

01-08-2010 08:33 PM

Hi All

I have read several options here on heating garage..
the garage is not my workshop.. My workshop is at a different location therefore will not be raising any dust here.
May park a car there though.

Anyone know if taking a heat run from the house into the garage is legal here in Ontario. I can pop in about a 3’x6” run from the basement to garage no problem. Everytime the furnace fires up it would push some heat and keep the garage at least above freezing.

It is -8C now and the garage is at or above 0 if I don’t open the doors.. also well insulated and would keep the room above the garage also warm


6 replies so far

View DrDirt's profile


4615 posts in 4750 days

#1 posted 01-09-2010 12:58 AM

Sorry I don’t know in Canada, though typically Canada is MORE strict on a lot of codes.
Here in kansas it is not allowed to connect the HVAC to the house because of concerns that you would run fire up a car, and the CO and CO2 would enter the house, and kill you in the basement.

Obviously one can ensure that won’t happen but no code inspector would give it a thumbs up, and it would have to be taken out if you wanted to sell the house.

I would go the space heater route, unless you really want to keep the garage heated all the time.
My shop is a third stall of the garage. I have a electric heater in it (for dust) but it has a thermostat, so I can just turn it down and leave the door between the 2 car and 1 car side open to keep the place ‘warmish’ then when I work in the shop I close the door and turn the heat up.
I use this 5000W unit 17000BTU

When I bought it 3 years ago I paid $219 but there is no exposed heating element, so I never had to worry about fire from sawdust.

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

View thedudeabides's profile


75 posts in 4149 days

#2 posted 01-09-2010 03:33 AM

One word; kerosene.

View RetiredCoastie's profile


999 posts in 4191 days

#3 posted 01-09-2010 06:48 AM

I bought one for my two car garage similar to Dave’s. It’s 5000 watt 240volt 30 amp. It’s made by Cadet it’s called the HOT ONE. Ive had it about a week and it works great, although we don’t have the temps like you did. I was able to get the garage to heat up from 30 deg f to 60 deg f in about 25 minutes. My garage is 400 sq ft. with an 8’ 6” ceiling. I paid $225.00 U.S. they make two versions under the same name one is 4000 watt and the bigger is 5000 watt. Get the bigger one if you’ve got the circuit for it.

-- Proud Supporter of Homes For Our Troops

View Mark Shymanski's profile

Mark Shymanski

5623 posts in 4720 days

#4 posted 02-04-2010 05:07 AM

Even at -8 you don’t really need to heat the garage for the car as -8 or +8 doesn’t really make that much difference to the longevity of the car. If you are storing paint or whatever that is a different question. I use a 4800 watt electric ( on a 240 volt circuit) when I want to work in my shop which is the none car part of my 2 car garage. It was coolish here the other day (mid -20s C) and I had the shop up to 18 degrees in a couple of hours, I actually had to turn the heat down as I was planing some drawer sides and was getting too warm.

As mentioned, in earlier posts, I don’t think it would be wise to give CO a chance to leak down into the living quarters, and these electric heaters are inexpensive to run.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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118161 posts in 4585 days

#5 posted 02-04-2010 05:13 AM

View SteveVo's profile


3 posts in 3275 days

#6 posted 03-21-2012 08:26 AM

Is it possible to just install designer radiators in the garage? I wonder if that will be an affordable option for you. I do not know of any other ways to help you though.


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