by hardcase | Dec 7, 2022 | FAQs
Two-stage heating means the furnace has two levels of heat output: high for cold winter days and low for milder days. Since the low setting is adequate to meet household heating demands 80% of the time, a two-stage unit runs for longer periods and provides more even...
by hardcase | Dec 7, 2022 | FAQs
Standard-efficiency furnaces convert roughly 80% of the energy from gas into heat. High-efficiency furnaces convert 90-97% (depending on the model) of the energy from gas into heat. So basically: high-efficiency furnaces use less fuel. So . . . they’re...
by hardcase | Dec 7, 2022 | FAQs
We recommend homeowners check their furnace filter every month and replace it as needed. Different types of filters are rated to last varying amounts of time: Economy panel filters only last about 30 days 2-inch filters should be changed every three...
by hardcase | Dec 6, 2022 | FAQs
A general term used to describe how effectively a heat pump, air conditioner, or furnace converts incoming energy to outgoing energy. The higher the number, the more efficient the unit and the lower the operating cost.
by hardcase | Dec 6, 2022 | FAQs
An integral part of the indoor unit of a heat pump or air conditioning system. When warm air passes over a coil filled with liquid refrigerant, the refrigerant itself evaporates and absorbs some of the heat. This gas refrigerant is then pumped to the outdoor coil,...
