Once a year is the most standard and short answer to this question. However, the next time there is an HVAC tech at your house, ask if that is actually necessary. You might have a newer model furnace, do not have pets, your house is very clean, or your A/C and furnace are not used very much due to living in a temperate climate. If so, you may be able to go two to three years in between furnace tune-ups.
What is involved in a furnace tune-up?
– Cleaning components such as the fan, blower motor, jets, burners, combustion chamber, and heat exchanger, among other parts.
– Clearing and checking the condensate lines. The lines not only drain water that gas combustion generates but drains condensation colled on the A/C coil over the furnace as well.
– A temperature differential test is conducted. It measures the temperature of the air leaving and going into the furnace.
– Check the flame sensor and ignitor for wear.
– Perform a combustion analysis on the exhaust to check the levels of C/O2, C/O, and O2.
What much does a furnace tune-up cost?
A furnace tune-up conducted by a professional HVAC company can be expected to cost $90 to $150. Be wary of furnace service $50 “specials.” Often they can result in fishing expeditions where unnecessary or expensive repairs are “found” by the technician to add on upgrades.
Getting more value for your money
When a technician is at your house, ask for recommendations on which filter should be used. Depending on the style of furnace you have, health issues, your lifestyle, and a couple of other factors, you might be using too fine of a filter for your furnace to efficiently operate or it might be too porous and not doing a good enough job at filtering the air to your home and furnace.
If you are interested in having a smart home thermostat in your house, you can have it installed by the technician while he is already there. That will prevent having to pay for another service call. You just want to be sure that you specify that when calling for your tune-up so that they bring the right thermostat with them.