Viewing post #2677606 by Shonick

DaisyI said:

Sinking an insulated stem wall below the foundation will help keep cold from coming in from the sides.

Can you elaborate more on this? Are you saying, adding an insulated wall below the foundation, meaning to extend the greenhouse wall into the ground?

karmahappytoes said:
Our electric bill is divided into 12 equal payments, and it's been around $230 a month.

Did the $230 a month cover only your 2 greenhouses or that include your house electric?