Quote:
Originally Posted by biscuitridge
Double poly doesn't prevent it from being colder inside,mine always is colder and I have inflated double poly.
|
Interesting. Have you measured it? Cornell research found a 5-7 degree difference, but I think they only tested a single-layer structure. I would be curious to know if a double layer is the same.
The amount of energy required to heat my greenhouse the 7 degrees that it drops below the outside is huge. It is mind-boggling to think that a big heater would accomplish the same thing as just leaving the doors open.