hello! things are moving forward. Design changes:
1) hydronics are in the basement slab too. There is about 3600 SF of heated surface after deducting beams and walls and staircases.
2) planning on heating it with vacuum tube collectors and a heat storage mass of 150 metric tons of soil at ideal moisture. This will be divided in two masses to allow for ideal Delta T. It will be insulated to R80 and the top of the mass is 12" below grade.
3) I have run the Manual J load calculations and the heating and cooling needs are 25K and 22K. I will install a 3 ton Bosch GSHP for the HVAC system.
|