In alt.home.repair, on Wed, 29 Jan 2020 23:10:09 -0500, Ralph Mowery
wrote:

In article ,
says...

But the roofer who came yesterday wants to replace it, because he says,
it's rusting.

He also says the new one will be better, new thermostat, new humidistat.

My current thermostat works fine, I never take steamy showers or baths
so I don't need a humidistat.

I do believe there is some rust (maybe at the outer edge of the frame)
and around the holes where I nailed the fan to the plywood 35 years ago.
But I doubt if there is much and new nails can be put in an inch away
from the old nails, where I'm sure there is no rust at all. Will take 3
minutes.

So is there any reason to replace the fan?





You may want to do like I did and replace the roof fan with a ridge
vent. You eliminate all mechanical and rust problems.

This is a townhouse, and it came with and still has a ridge vent that's
almost as long as the house is wide, and a full length soffitt vents
both front and back.

People in this group have told me years ago that I shouldn't have needed
a fan with all this ventilation, and all I can say is when I bought the
house in May, without leaving the AC on, I'd come home after work at
around 6 and the 2nd floor was too hot to enter. It was still too hot
at 10 and at 11. I'd eat dinner and sleep in the basement, and go up
stairs in the morning. This went on daily for weeks.

After I put in the fan, it was 10 or 15 degrees cooler upstairs, still
without the AC, and I almost never needed AC at all. So you'll never
convince me the fan isn't a great thing for my hosue.