Is there anything special I need to do to keep My greenhouse warm inside during the winter?

[Guest]

My greenhouse is finally up! Question: I'm in Zone 8B, western WA. Is there anything special I need to do to keep it warm inside during the winter? I will have a heater, but do I need to put in some rigid insulation where the cedar siding is along the bottom? Should I put concrete blocks along the bottom to keep the wind from sweeping underneath and cooling it down?

Any thoughts?

[Debbie]

We insulated the areas you have covered in wood.

Zone 5b, Catskill Mountains.

The heater runs all the time, but, I have many days and nights below zero.

We have radiant heat in our concrete slab, that works extremely well and doesn't dry out the plants no matter how cold, since it doesn't heat the air.

[Patricia]

Love it, but Is that greenhouse anchored in any way? I'd be worried about the wind getting underneath it and blowing it away.

[Teri]

Wow! That's awesome!

[Lesley]

You can put in a compost heater.