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Old 03-31-2014, 09:48 PM   #1
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12x16 shed heat


I built a 12x16 shed last year. I wanted to have heat in it. I don't have a basement, and it wouldn't be feasible to heat my 2 car garage. I want to use the shed for wintertime projects that I can't do in the house. I wanted to have the heat going on low all winter to keep things i store in there from freezing. Is it reasonable to do this with something like a wall mounted 120v heater? Of course I'm going to insulate the crap out of it. Would it be expensive to keep the heat going around 50 degrees or so? I live in Iowa where it gets pretty cold. I'm open to any input/suggestions.
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Old 03-31-2014, 09:55 PM   #2
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12x16 shed heat


Since I'm guessing natural gas isn't an option, I've seen a lot of small ceiling mounted 220v electric heaters for about $200 that I've heard put out a lot of heat and have thermostats on them. Plus no venting needed. I really don't think a 120v heater is going to cut it especially if you are going to go out there and want to crank it up to 65 and expect it to warm up quick. Unless you want to get a propane tank and put in a small wall mounted furnace. It's going to get mighty cold with it being a freestanding unit and the winds hitting it from 4 sides even when insulated.

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Old 03-31-2014, 10:25 PM   #3
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12x16 shed heat


Got a 16 bye 16, thru the wall vented propane heater with a tank in the back. Cheaper than electric, goes from just above freezing to 72 in about ten minute! Ron
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Old 04-01-2014, 07:43 AM   #4
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12x16 shed heat


Wall heaters are typically sized by the volume of the room they're supposed to heat. I put a 240-volt unit in my wife's 12x18 art studio (well insulated) and it works fine. But just to make her happy, the studio also has a small wood stove.
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Old 04-01-2014, 08:28 AM   #5
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Voltage does not determine how well it will heat. Wattage does.
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Old 04-01-2014, 09:05 AM   #6
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12x16 shed heat


Sure it depends on the construction and not just the walls and ceiling but also the floor. In general to maintain a living room temp. it takes 10-15 watts / sq. foot but you are only asking for 50 so I would begin with a 120 v quality free standing or wall mount 1500 watt at floor level. If need be another could always be added.

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Old 04-01-2014, 09:49 AM   #7
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Quote:
Originally Posted by joed View Post
Voltage does not determine how well it will heat. Wattage does.
Correct, but in order to get something like a 5000w heater, you need to run 240v, so in essence, voltage does dictate how well it will heat.
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Old 04-01-2014, 11:48 AM   #8
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12x16 shed heat


Those little electric oil filled heaters that look like old time radiators will do an amazing job in an area that size. ~$50.
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Old 04-02-2014, 09:08 AM   #9
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Correct, but in order to get something like a 5000w heater, you need to run 240v, so in essence, voltage does dictate how well it will heat.
Yea but you can get 240 volt 500 watt heaters as well so just saying 240 volts is not really saying anything.
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Old 04-05-2014, 08:11 PM   #10
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12x16 shed heat


I think a small electric heater would work well here, especially if it is well insulated.

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