Bosch Puts Variable-Speed Inverters in Every York YD Heat Pump Tier
Bosch's York YD heat pumps use variable-speed inverters at every tier, from 15.2 to 20 SEER2, with cold-climate models that heat down to -13°F.
Tag: heat pumps
Heat Pump in Cold Weather: Low Limits, Defrost Mode and Backup Heat
Most standard heat pumps heat well down to about 25 to 30°F, and cold-climate models keep working far below 0°F. See how defrost and backup heat work.