1. How often should you change a furnace filter?

How often you change a furnace filter depends on the manufacturers’ recommendations; typically you should check your filter on a monthly basis. How often you will need to change your filter will depend on many people live in the house, if you have pets, how often you run the furnace fan, etc.

2. Which way do furnace filters go?

Which way the furnace filter goes is a very common question. The furnace filter should always point towards the actual furnace. Most filter manufactures have an arrow on the filter and you want to make sure this is going in the proper direction of airflow which again points towards the furnace.   

3. How long does a furnace last?

A properly maintained furnace can last at least 15 to 20 years, completing annual maintenance can extend its life longer.

4. How to stop a furnace from banging?

To stop a furnace from banging you may need a service technician to make some adjustments on the ductwork because it is actually the ductwork that is banging. This is usually because of pressure building up inside the ductwork. In most cases, this can be taken care of as long as there is access to the ductwork that is banging.