by hardcase | Dec 7, 2022 | FAQs
Furnaces are rated by the Annual Fuel Utilization Efficiency ratio (AFUE), which is the percent of heat produced for every dollar of fuel consumed. Like the miles per gallon on you car, the higher the AFUE rating, the lower your fuel costs. All furnaces manufactured...
by hardcase | Dec 7, 2022 | FAQs
Furnace technology has advanced significantly in recent years, raising concerns over chimney use. As a result of changing technology, many existing masonry chimneys aren’t able to meet the specific demands of new furnaces. There are several reasons for this...
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...
