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Greenhouse: Electric heat for GH

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taynors

taynors
Urbana, OH
(Zone 5b)

January 8, 2011
6:36 AM

Post #8298725

We just built a GH attached to our house . kinda like a sunroom .
we used poly carb panels
the size is about 10' w x 45 ' long
insulated all nooks and crannys , its air tight about 90%
got one window and a storm door attached.
you can see it here
http://davesgarden.com/community/forums/t/1145694/
looking into heat source we decided on electric. our house has geothermal ,
propane is to expensive
wood is not consistent enough and would have to be controled manualy ?
our question is
how many BTU do you use in your ? we need to convert to 240 amp and at least 20,000 BTU is our best understanding .
Do you have an electric heat and can recomend a company ? or a heater you like over others that you have used ?
thanks for any advice you can help us out with
sue
boxcar_grower
South Hadley, MA
(Zone 6a)

January 9, 2011
10:40 AM

Post #8300637

You mean 220 volt.

20,000 btu electric is a huge amount of energy for electicity.

It might have to be 3 phase.

Propane will be much cheaper in my case.

1 Gallon of Propane = 27 kWh (Kilowatt Hours) of electricity - This means that one gallon of propane contains the same amount of usable energy as 27 Kilowatt Hours.

My electric rates are .165 cents per kWh. Take .165 cents and multiply it by 27 (kWh) = $4.51. Electricity is cheaper than propane if your propane is $4.51 or greater.

I currently pay $2.91/gal for propane.

Propane heat is 34.57% cheaper.

I only have a 125 gal propane tank and I am by no means high volume use. High volume would be cheaper.

taynors

taynors
Urbana, OH
(Zone 5b)

January 9, 2011
12:41 PM

Post #8300874

thanks so much !!! wow .
we just filled out propane tank and i think we have a 125 tank. we just paid 3.99 per gal.
i will check and see what our electric is
thank you so much !! this is great info you gave me.
sue
Hallchinalady
Central Pa
United States

January 10, 2011
3:45 PM

Post #8303183

We use a coal burner...it's attached to the garage and it heats both garage and greenhouse...but a lot of people don't have access to coal but it is a consistant heat.

taynors

taynors
Urbana, OH
(Zone 5b)

January 10, 2011
5:06 PM

Post #8303363

good to know Hallchinalady.
i have seen the coal burner stoves in tractor supply. i was always wondering about them.
well we sure are having trouble and someone to hook up our propane . we called several placed ect...
but i m sure we will find someone .
thanks again for all the help
boxcar_grower
South Hadley, MA
(Zone 6a)

January 10, 2011
5:15 PM

Post #8303385

Your propane supplier?

That is who did mine.

A licensed gas fitter would do it.

My greenhouse is free standing and too small to fall under any Massachusetts dwelling building codes. That made it easy. I had to pull a permit for the heater installation and have it inspected.

taynors

taynors
Urbana, OH
(Zone 5b)

January 10, 2011
5:20 PM

Post #8303396

well our propane supplier will do the outside but not the hook up to the heater ect... inside. understandable . sorry i was vague . my bad .
we are still looking around
we did have to get a permit to build the Gh . what a nightmare that was. LOL
boxcar_grower
South Hadley, MA
(Zone 6a)

January 10, 2011
5:32 PM

Post #8303425

I guess every state is different.

In Mass. only a licensed plumber can do any kind of plumbing, water, waste, or gas. All of my gas suppliers would do the complete job.

taynors

taynors
Urbana, OH
(Zone 5b)

January 10, 2011
5:58 PM

Post #8303467

that is what we though too ,but this company won't do it ?
Doug9345
Durhamville, NY
(Zone 5b)

January 11, 2011
1:39 AM

Post #8303920

Search with Google using hvac Urbana, OH for a search term.

HVAC stands for Heating Ventilation Air Conditioning. It looks like there is a half dozen or so.

We heat our house with a propane boiler in series with a wood boiler. The propane gives heat to the house when the fire is down or I'm gone for an extended period of time. The wood reduces the cost of propane.

taynors

taynors
Urbana, OH
(Zone 5b)

January 11, 2011
5:16 AM

Post #8304051

thanks Doug
DH has been using the yellow pages but is not coming up with much.
thanks again
sue
Tropicman
Bushland, TX
(Zone 6a)

January 13, 2011
10:47 AM

Post #8308642

In my sunroom,I use baseboard heaters,electric 220v,I bought the 5ft long ones from Lowes,they were easy to install and work great,any electrician can install these in no time.

taynors

taynors
Urbana, OH
(Zone 5b)

January 13, 2011
11:57 AM

Post #8308770

well we finely got an electricain out
we dedided on electric.
so we will have two heaters , one on each side of the GH .
then a fan for air circulation ,
i have a window and door to ventilation.
so thank you for all your help
will keep you al up todate on or progress

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