13. Heat Pumps Revisited
Heat Pumps Revisited Although we have written about heat pumps before, back in the spring, Winter Is Coming, and we figure that heating systems are on many people’s minds as they consider their optimum strategies for staying warm over the next 6 months! Also, as the climate crisis becomes more visible, many are trying to reduce their household carbon emissions in practical ways. With the rebates currently available in Maine for high efficiency air source heat pumps, these systems will pay for themselves in savings within 3 to 5 years, and can reduce your heating system’s greenhouse gas emissions by 75%. Heat pumps are a bit difficult to fathom if you are not an engineer or physicist. People tend to think ground source heat pumps tap into geothermal energy (like hot springs), and they tend to think that air source heat pumps only work if it isn’t very cold out. In fact, ground source heat pumps (confusingly often referred to as geothermal) take heat from wa...