Great thread! I have much to add since I just put a heater in my garage.
Here's what I have:
http://www.northerntool.com/webapp/...S=on&TEST=Y&productId=20858&categoryId=155628
It is natural gas, 40k BTU. To figure out what BTU rating you need (this is a very rough estimation) take your LxWxH of your garage and multiply it by 3. This will give you rough BTU's needed.
I would recommend not using electric heaters; they are too expensive to run. I personally don't like kerosene since it stinks and my wife is super fussy about "garage smells" permeating the house.
Two types of nat'l gas heaters: Forced air and radiant. The one I got is radiant. Forced air heaters heat the air, and the air heats surrounding objects. Radiant heats the objects (including you) and then heats the air after. Forced air will blow dust around the room depending on what you are working on.
My radiant heater is quiet (slight hissing sound), you can feel heat immediately up to 10 feet away or so, requires no electricity (uses milivolt pilot light/ thermocouple and thermostat), and it requires no venting (flu to outside.) The tube heaters (someone posted a pic of it earlier) are by far the best way to go in my opinion, but they start at about $1000 and that doesn't consider all the work it takes to install them.....they do have a 110v blower and they use a flu through a wall or ceiling. These are long (8-10 feet or more) so they heat up a much larger area. I could still upgrade to this type down the road if I feel like it...I've already got the gas line in, it wouldn't be difficult to run it a little further.
Downsides: My heater isn't as dramatic as I thought it would be. It does work; after 45 minutes or so my garage is very comfortable to work in with a long sleeved shirt or sweatshirt on. It is not as dramatic of a heat source as the tube heaters. I haven't really cranked up the thermostat so it gets a lot warmer than 60 or so; I need to put in a ceiling fan to circulate all of the hot air that rises above the heater and get it down lower where it belongs (I've got a 12 foot ceiling; it's a pretty voluminous area to heat.) The other thing with radiant heaters is the open flame...you gotta be sure to turn em off when you start painting or ka-boom.
Figuring out the gas lines wasn't really that difficult. Inside just use black pipe, joined with threaded couplings with Teflon tape and pipe dope. Outside, gas lines are supposed to be buried. I dug about 40 feet of trench 2 feet deep, used plexco (yellow) gas pipe and risers which came from a place in West Jordan called Maskell Robbins. Putting in the plexco was probably the easiest part. I spent $350 on the heater and almost $200 on all the pipe. I t is worth every cent!
EZ
Here's what I have:
http://www.northerntool.com/webapp/...S=on&TEST=Y&productId=20858&categoryId=155628
It is natural gas, 40k BTU. To figure out what BTU rating you need (this is a very rough estimation) take your LxWxH of your garage and multiply it by 3. This will give you rough BTU's needed.
I would recommend not using electric heaters; they are too expensive to run. I personally don't like kerosene since it stinks and my wife is super fussy about "garage smells" permeating the house.
Two types of nat'l gas heaters: Forced air and radiant. The one I got is radiant. Forced air heaters heat the air, and the air heats surrounding objects. Radiant heats the objects (including you) and then heats the air after. Forced air will blow dust around the room depending on what you are working on.
My radiant heater is quiet (slight hissing sound), you can feel heat immediately up to 10 feet away or so, requires no electricity (uses milivolt pilot light/ thermocouple and thermostat), and it requires no venting (flu to outside.) The tube heaters (someone posted a pic of it earlier) are by far the best way to go in my opinion, but they start at about $1000 and that doesn't consider all the work it takes to install them.....they do have a 110v blower and they use a flu through a wall or ceiling. These are long (8-10 feet or more) so they heat up a much larger area. I could still upgrade to this type down the road if I feel like it...I've already got the gas line in, it wouldn't be difficult to run it a little further.
Downsides: My heater isn't as dramatic as I thought it would be. It does work; after 45 minutes or so my garage is very comfortable to work in with a long sleeved shirt or sweatshirt on. It is not as dramatic of a heat source as the tube heaters. I haven't really cranked up the thermostat so it gets a lot warmer than 60 or so; I need to put in a ceiling fan to circulate all of the hot air that rises above the heater and get it down lower where it belongs (I've got a 12 foot ceiling; it's a pretty voluminous area to heat.) The other thing with radiant heaters is the open flame...you gotta be sure to turn em off when you start painting or ka-boom.
Figuring out the gas lines wasn't really that difficult. Inside just use black pipe, joined with threaded couplings with Teflon tape and pipe dope. Outside, gas lines are supposed to be buried. I dug about 40 feet of trench 2 feet deep, used plexco (yellow) gas pipe and risers which came from a place in West Jordan called Maskell Robbins. Putting in the plexco was probably the easiest part. I spent $350 on the heater and almost $200 on all the pipe. I t is worth every cent!
EZ