Al D wrote:
Does anyone know about adding a humidifier to an existing forced hot
air furnace? I hear from a few people that it isn't a good idea
because it will ruin the furnace components.

Only a poorly designed, sized or installed unit will damage anything.

My house air is very
dry and needs to be helped. The heating contractor that I have said
that they now make humidifiers that don't ruin the furnace itself.

Very true.

He also said that a UV light along with the humidifier helps with
killing off mold.

Mold should not be a problem if everything else is working as it should.
It sounds like he is trying to sell you something you don't need. As always
get a second contractor to bid on the project. See what they say. It is
possible the first one saw something that triggered the mold issue, or it
may be that he has run into a number of such problems, maybe something local
maybe just him.

Question is: should I believe him? I'm not sure.
Does anyone know about this subject. ( It is a forced hot air furnace
with a Beckett burner ).

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math