The DOE’s latest ruling means all new furnaces sold after 2028 will have to be high-efficiency condensing models.

After spending sleepless summer nights sweating without working air conditioning, the mother of one Northwest D.C. family says the first weeks of winter have been spent without proper heating.

In response to the shift toward low-GWP refrigerants, several manufacturers have introduced convertible coils that are designed to operate with multiple refrigerants.