Viewing post #3028273 by MoonShadows

ZeroKelvin said:
Questions:
- Am I wrong about expecting +15F vs outside? Or did I simply get a dud heater?

Yes, you are wrong. Unfortunately, these companies will sell you the "dream" that you can grow year-round, but their greenhouses just don't have the insulation needed for 4 season growing. With the greenhouse you have now, it's like trying to heat your front porch that is wide open. I used to be an online independent dealer for Palram. Their greenhouses look really nice, but only perform well in moderate environments. FORGET WINTER unless you want to spend a lot of money.

What is a good delta T for the air coming out of the heater vs air in green house?
- What would be a good heater/setup to use?
- Any other tips? What am I missing?

Insulation, insulation, insulation!
Heat sinks, heat sinks, heat sinks!