I'm building a 14 x 16 building with an attic for storage and maybe my wife would use it for her crafts. Its on a concrete turn down slab, so I thought radiant heat in the floor, particularly a solar passive setup would be desirable. At this point I've poured the slab with a radiant barrier underneath and have about 140' of PEX tubing in the slab making one loop.
Obviously a collector panel is required, and maybe a circulating pump. I have some deciduous tree shading issues but not total blockage, and can set the collectors about 30 feet away from the building ground mounted for a better sun exposure if needed.
What would you recommend? What other components would I need for a simple setup?
I will have grid power to the building, and a buddy gave me a tankless electric HW heater.
Thank you for any suggestions you may have.
