Heating & cooling
Cold-Climate Heat Pumps: Do They Really Work Below Freezing?
How cold-climate heat pumps perform below freezing, what the ENERGY STAR cold-climate label requires at 5°F, how to use the NEEP list and plan backup heat.
Tag
Guides tagged “hvac”
3 Home Energy Guide Hub guides about hvac, with sources and dates.
Heating & cooling
Heat Pumps for Your Home: Cost, Savings and How to Choose
What a heat pump costs to run in 2026, how much it can save versus a furnace, AC or baseboard heat, how to read SEER2 and HSPF2, and what help is left.
Thermostats & controls
Smart Thermostat Savings: What You Can Really Expect
How much a smart thermostat saves, which settings matter, heat pump and C-wire compatibility, and how utility demand-response programs pay you.