Using a backhoe and a transit, we took a chunk out the sloping yard. When the backhoe left we had fairly level surface and and a nice big hole to work with. It is very important to dig out to give yourself room to work around the part of the structure that will be underground. I put in a drive way to the greenhouse. Radiant Heating System.
Radiant systems provide evenly distributed, clean and inexpensive heat.
The theory is to slowly pump heated water through the slab floor. The concrete will absorb the heat from the water and release the heat into greenhouse. Yes, there is science to this and many technical terms. We are going to keep it simple here. This works and the implimentation is not complicated.