Scientists presented a minimal heat engine model that can attain Carnot efficiency while achieving maximum power output.

They’re practically paying you to save money. Brand new heat pumps are $10,000 cheaper thanks to these government incentives ...

Heat pumps sound almost too good to be true. They make for healthier air indoors and out, cut greenhouse gas emissions and ...

Heat pumps, by contrast ... traditional water heating methods to energy-efficient air-source technology. High-Efficiency Operation Designed to meet NEEA Tier 4 and CEE Advanced Tier specifications ...

The appliances are more expensive and less common than air-source heat pumps. But big incentives and superb efficiency can ...

When you're looking at adding a heat pump to your home, you'll need to make sure the size is right for your square footage.

The DOE’s Residential Cold Climate Heat Pump Technology Challenge, which ended its field-testing phase last fall, aimed to develop high-efficiency heat pumps that perform at ambient temperatures as ...

Ground-source heat pumps use energy from below the ground or under water. The appliances are a sustainable and energy-efficient switch ... mostly because of high electricity costs across the ...

Last year, 18,158 heat pumps were installed in Massachusetts — 2.5 times as many as in 2021, according to Mass Save, a state-sponsored energy efficiency program that offers rebates to encourage ...