Change filters.
Vacuum out.
clear drain.
inspect burner flame color.

May I suggest that YOU are doing the service?

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"Chet Hayes" wrote in message
om...

I change the filters on mine
twice a year, vacuum and dust, dirt debris, etc., make sure the flames
look ok, make sure the drain is working, never had it serviced and
have never had a problem in close to 20 years in 2 homes. If it's an
oil system, well that's another story. I would have that serviced
once a year.