learn me space heaters for a garage...

Here's the situation:

Garage is part of the house, and directly underneath two bedrooms (the kids'), so this has to be something that is absolutely safe.

Garage is insulated at is not too cold even with no heater, as long as the doors stay down. So I just need something that will raise it a few degrees when I'm working out there..

I have regualar house power in the garage, nothing heavy-duty.

Since the doors will be down, it needs to be something that has no fumes.

So, suggestions?

Oh, and preferably something not too expensive.

Learn me heaters as well

Wall mounted LP heater with built in fan and O2 sensor. 30,000 btu/hr will probably more than enough, and expect to pay around $200 or so. And a LP tank and regulator, ... so a couple bucks more.

With the O2 sensor it'll turn it off before it gets dangerous since it's it ventless.

For your application I'd recommend an electric unit heater, like this: http://www.air-n-water.com/electric-utility-heater.htm Electric heat is more expensive than gas, but it's safe and for intermittent use in a temperate climate that's not as big an issue. I suspect a 5kw heater will be adequate (it will require a 240vac, 30 amp circuit breaker) but you'll need to see about doing a heat loss calculation to determine how big a heater you need - you can find calculators online.

I wouldn't recommend a ventless heater in an attached garage, particularly one underneath the bedrooms.

We use a ventless heater in our cabin. We have yet to pass out and die. But the point is a valid one. YMMV.

Is the garage door itself insulated? If not I would start there.
Sample: http://www.diynetwork.com/how-to/how-to-insulate-a-garage-door/index.html

the original poster is in Virginia and they are allowed there, but ventless heaters are not allowed in some other parts of the country. I don't know if this site is up to date but it has a map showing the regulations for each state: http://www.ventless-gas-fireplaces.com/ventless_products_code_information.html

jrw1621 wrote: Is the garage door itself insulated?

irish44j wrote: Garage is insulated

yeah, the doors are insulated!

Can anyone impart knowledge of this unit? Kero heater

If open flame, a simple CO detector is 20 bucks.
Sample:

I'll also mention that wall-mounted is a no-go. I have zero wall space in the garage, not anywhere. It needs to be something that I can move around if needed.

For your situation, I go with electric. Run a 220v outlet there and it can also be used to run a decent mig welder. I have a radiant propane heater, but would be hesitant to ise it in an attached garage. http://www.mrheater.com/upload/newsletter/MH_35_LP_may_19.pdf

If you use a ventless propane heat you need to be aware that one of the byproducts of the combustion is water vapor.

We had one in our family room and after 2 years had to replace the dry wall ceiling because it had warped vey badly.

As far as necessary power goes, I endure the exact same climate and use 2x 10,000 BTU Kero heaters in a 3.5 car uninsulated detached garage. 15,000 BTU should be more than enough to get your garage to a very comfortable temperature.

Hell, as small as that looks, I think 2 $10 1000W heaters would do the trick (~6500 BTU)

mw wrote: For your situation, I go with electric. Run a 220v outlet there and it can also be used to run a decent mig welder.

+1. I have one of these:

http://www.northerntool.com/shop/tools/product_200395480_200395480

The price has come down since I bought mine. They also sell a 5600W version for $110.

This little thing will get your garage quite comfortable and during the off-season is small enough to be stuffed just about anywhere.

It's only real down-side is it's not quiet.

I use this, but don't recommend it. It is for outdoor use, and it throws flame and sparks, not the best idea for a garage. (I have a drafty space with plenty of 02 exchange, and I point it at a safe corner and I don't work in there with it on, but still. I am looking for something better.)

This might be the ticket for you because it has an O2 shutoff:

This thread is timely. I need to figure out the same thing. I have a smallish two car garage at my apartment complex but I am further south.

I live in Upstate SC so I suspect we have similar weather. I have an early Pelonis Ceramic disk heater that I used when I was restoring my Spitfire. On the coldest days, I could turn it on and go back inside. Within 30 minutes, I could go work in the garage comfortably. If you put the heater in the area you were working, even sooner. And my garage doors are not insulated in the least.

We now have natural gas service to the house, so I might would go with some type of gas heater, but the unvented ones scare me. Also, the man who installed our gas water heater wouldn't even consider putting it in the garage due to all the cans of paint, solvent, pesticides etc. I had.

BTW. I cannot tolerate a kerosene heater. Those smelly things give me a killer headache in just a few minutes.

I had electric but it wasn't nearly enough power. After an hour it would be a couple degrees warmer. I bought one of those heat dishes you mount directly to a propane tank. It was super cheap, about 20 bucks and throws a lot of heat. It does pull O2 though so you need to be careful using it.

I need one as well. I have a three car garage with 15+ foot ceiling, largely non insulated and I'm in Colorado where it does get pretty damn cold.

Need something that can heat up the garage, not cost a ton and not burn my house down.

I use a torpedo heater and radiant kerosene heater in combo. I leave the side door open some to keep air moving. The torpedo heater is noisy and kicks out some fumes (propane model), so I don't run it long. But it does a heck of a job on heat shrink tubing fyi. The kerosene heater is better with less smell, as long as you don't turn the wick up too much, then it does smell like a diesel to some degree.

81cpcamaro wrote: I use a torpedo heater and radiant kerosene heater in combo. I leave the side door open some to keep air moving. The torpedo heater is noisy and kicks out some fumes (propane model), so I don't run it long. But it does a heck of a job on heat shrink tubing fyi. The kerosene heater is better with less smell, as long as you don't turn the wick up too much, then it does smell like a diesel to some degree.

Good to know i'm not the only person that does that.

I'm looking for a heater too. 3 bay garage with a door and windows. Anyone ever use one of these?

I use a double 500W shop lamp set. That throws off ~1KW of heat, right where you're working. If I need more, then I add a small portable electric heater for about 1.5KW.