ap wrote:
Correction - it's not an electric heater, but rather a gas heater.
And it sits in the attic.

ap wrote:
Hello,
We've purchased a home 3 1/2 years ago, but haven't done any
maintenance/cleaning of the electric furnace. This furnace sits
in the attic above the second story.

The house is about 7 years old, and we don't know if previous
owner did any maint work.

From your experience, is periodic maintenance/tune-up of the furnace
needed and beneficial ?

Thanks!

One thing you can do: change filters regularly (find out what size you
need, and
what types of filters are available, maybe from service tech.) Such
filters clog
quickly, and reduce efficiency. Yours is probably pretty hairy.

You wouldn't believe what the previous owner of my house did with the
filter
in the gas furnace. Jammed in a folded oversized filter, one time, and
walked.
Thus the quip about "hairy"- someoned had a dog, too. Dunno about
yours.

HTH,
J