In past columns, we’ve discussed geothermal water-to-water heat pumps and air-to-water heat pumps via hydronic heat sources. Both can be a great match to low-temperature hydronic distribution systems.
The word “geothermal” is currently one of the hottest buzzwords in the HVAC industry. It’s very evident that geothermal heat pump systems are quickly gaining market share in a wide range of buildings. Even the feds think it’s worth pitching in 30 cents on the dollar to help put one of these systems in your house.