Air-to-Water Heat Pump & Ventilation Retrofit: A New Free Course

Here’s the story of “Finally Fossil-Fuel Free: Air-to-Water Heat Pump & Ventilation Retrofit”, a new free course presented by Brian Just from the Vermont Energy Investment Corporation. His presentation is offered in partnership with the Northeast Sustainable Energy Association.

Air-to-water heat pumps have generated a lot of excitement for their enormous retrofit potential. This case study […]

John Siegenthaler Investigates: Low Ambient Air-to-Water Heat Pumps

Low Ambient Air-to-Water Heat Pumps: An emerging renewable heat source for North American hydronic systems.
Electrically powered heat pumps, in many varieties, are destined to play an increasingly important role in heating and cooling buildings around the world.

Heat pumps capture low grade heat from solar-resupplied sources such as outside air and soil several feet below the earth’s […]