Heating a Quonset hut

[Sasquatch4100]

I'm looking at adding heat to my Quonset hut. This year we put up the end walls, but they aren't insulated yet. I plan on adding foam board insulation and plywood over the end walls. I don't want to spray foam the metal ceiling although it'd be a big help. I've seen the foam flake off and it's not pretty.

I was looking at these:Mr. Heater 45K LP Gas Shop Garage Unit Heater | eBay Maybe the 75K btu unit. The Hut is about 800sq ft. 75K would be overkill, but since it's poorly insulated with lots of openings (ie gaps where the rolling doors meet the floor up to 3 inches due to un level floor. We inherited the property, so we also inherited a good load of issues such as that.

Ouellet 10,000 Watt Commercial Fan-Forced Heater, Model# OASU10000T | Electric Heaters | Northern Tool + Equipment. This one matches more closely to the actual per sq ft btu need.

With the huge 75k unit it would cycle a lot less and warm the area much quicker. The smaller electric units I'm afraid would never stop running and would use a lot of energy. With the LP unit I'd be afraid of the cost of gas and signing a contract with a company to deliver it. And how much would all that cost?

I was going to wait to do this next year, but I work outside part to most of the day. Going out to the shop to tinker after work is a little much after dealing with freezing temps all day. Puts a damper on your tinkering. Yeah, I'm a puss. :laughing:

 

[Sasquatch4100]

Oh, and I'm not looking to heat it 24/7. Just when I'm out there working.
Thanks!

 

[Pete Judd]

You might one of these heaters, with all the gaps, CO may not be a problem, and they can be directed to where you are are working. Heating a metal building with no insulation and large air gaps, the only other way would the gas IR heaters. Master construction forced air, convection, salamander, torpedo heaters

 

[MotorSeven]

SQ, think about getting insulation sprayed on the inside of the quonset. We have about 2" on ours and the stuff is amazing. I regret only spraying the living quarters(30x14) but I heat it comfortably with a 1500 watt Pelonis cube heater. The rest of the building (30x36) is uninsulated And I heat it with wood...a lot of wood(7 cords last year). As soon as i can afford it the rest of the shop will get the spray on stuff.

Your either going to pay in gas, electricity or wood for years, or you can pony up and insulate now.......

 

[Sasquatch4100]

I might go with a torpedo one for now. I'll wait to see how much the tax man wants from me this year to see if I can afford to get the big one while it's cold.

I'm also going to look at a few local surplus stores, but I usually like to buy stuff like this new.