In particular, widespread adoption of heat pumps — a kind of reversible air conditioner that can replace both your AC unit and your gas furnace — could reduce heating and cooling greenhouse emissions ...

Your fridge works hard every day, but a little care can make it last longer, run quieter, and use less energy. From cleaning condenser coils to checking door seals, small steps can have a big impact ...

Air compressors are often loud, raucous machines – but they don’t have to be. [Eric Strebel] built a remarkably quiet compressor using parts salvaged from an old fridge. After several years of use, it ...