It's easier than it sounds. If you didn’t know that your refrigerator has coils that need regular cleaning, you're not alone.

There are two types of coils in an AC/refrigeration system–the evaporator and the condenser. They consist of copper or aluminum tubes with aluminum fins or microchannel tubes with fin strips. If these ...

Glamorous? Hardly. If someone ever writes “HVAC: The Musical,” the number about coil cleaning is probably the song that gets cut for time. Worth it for system performance? Absolutely. Cleaning coils ...