While you may not see or think about it every day, during colder months, your furnace is hard at work to distribute heat throughout your home. Here, some answers to common furnace questions—so you and your family aren’t left out in the cold.
The lifespan of a furnace is anywhere from 15 to 30 years, but regular maintenance is key to keep it running as efficiently as possible*. Once a year (fall is a good time), hire a professional to:
One thing you can do yourself to ensure prime performance from your furnace is to be consistent with filter changes. A Filtrete™ Filter will capture particles from the air passing through it, protecting the furnace’s blower.
A clean filter can also save you money on your utility bills, since your heating system won’t have to work as hard to provide the proper airflow to your home. Filtrete™ Filters should be replaced at least every three months.
A furnace’s effectiveness is measured by annual fuel utilization efficiency (AFUE), the ratio of annual heat output of the furnace, compared to the total annual fossil fuel energy consumed by the furnace.
A high-efficiency system should perform at 90 to 98.5 percent AFUE, so when your furnace’s rating dips to 56 to 70 percent—meaning that only 56 to 70 percent of the energy in the fuel becomes heat for the home, while the remaining percentage escapes through the chimney or elsewhere—it’s time to replace***.