Shadyacres Greenhouse******Sunshine Floral

ftd, Floral, Florist, Crystal Falls, Michigan, Greenhouses, Plants, Gardens, Floral Arrangements, Weddings, Sympathy,Any Event you need something Special

BTU Fuel Consumption Per Hour

To calculate your fuel consumption per hour per type of fuel use the calculations below. 



BTU's  x 0.098 / 100  =  Cubic Feet of Natural Gas per Hour

BTU's x 0.293   =  Watts per Hour

BTU's x 0.010176 / 1000 = Gallons of Propane Gas per Hour





For the Area Calculator Click Here!


Heating BTU's

ACF Greenhouse Heaters & Heater Calculator





Area of Structure - This is the total square feet of exposed surface area (this is not length x width) your structure has (don't include floor). To find out the area of one of our greenhouses or any other greenhouses, click here. 
Minimum Outside Temperature - You will want to enter the lowest temperature expected for your area. Not sure? Take the minimum temperature from your area in the last 2 or 3 years and subtract 10 degrees to be on the safe side.
Maximum Inside Temperature - This is the highest temperature you would want to maintain in your greenhouse.
Heat Loss Value - Check the list below to find the heat loss value for the covering used on your greenhouse. Some values may vary with manufacturer. If you know the R-value of your covering, you can convert it to a heat loss value using this formula: Heat loss value = 1 / R-value.
 Area x
(Max - Min)
x Heat Loss
 4 mil polyethylene
1.20
4 mm (5/32") twinwall polycarbonate
.70
6 mil polyethylene
1.15
6 mm (1/4") twinwall polycarbonate
.65
6 mil poly double layer (inflated)
.70
8 mm (5/16") twinwall polycarbonate
.62
11 mil woven polyethylene
1.05
10mm (3/8") twinwall polycarbonate
.53
3 mm (1/8") glass (single layer)
1.13
16 mm (5/8") 5 wall polycarbonate
.33
6mm polycarbonate roof & glass walls
Solexx 3.5mm
.90
.48
Polycarbonate / fiberglass (single layer)
Solexx 5mm (rating coming soon)
1.20
Minimum BTU Needed - This is the minimum amount of BTU output the heater you use should have. If the heater only has a BTU input rating, use the following formula. BTU output = (heater efficiency) * (BTU input). 
Note: You need to have Javascript enabled on your browser for the calculator to work.
Fuel Conversion Factors
1 cubic foot =
0.0102 therms
1 watt =
0.001 kilowatts
1 gallon =
4.2 lbs.



FlowerHouse Greenhouses
14' DomeHouse 645 7' x 7' BloomHouse 305
9' Conservatory 362 6' x 6' HotHouse 145
9' x 9' FarmHouse 335 6' x 6' SpringHouse 177
8' x 8' DreamHouse 247 6' x 6' OrchidHouse 210
Because of the large number of sizes available, you will need to use our surface area calculator to find the total surface area for the model you are interested in.

 



 

Recent Photos