Well, what does "on thermal" mean? I interpret it as going into geothermal sources of heat, where the groundwater is already heated. (IE, the groundwater is som

Well, what does "on thermal" mean? I interpret it as going into geothermal sources of heat, where the groundwater is already heated. (IE, the groundwater is something like 100+ degrees F, or 45+ degrees C.) As opposed to heat pumps, which you described.