That fan will have no impact on your boiler. It may even help it.
I would use a product on that cinder black wall that has a mold blocker in it.
I would use a product on that cinder black wall that has a mold blocker in it.
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I used drylok paint when I moved in 3.5 years ago. I believe that is mold resistant? I probably need to do it again. I had a failed downspout after I painted it.That fan will have no impact on your boiler. It may even help it.
I would use a product on that cinder black wall that has a mold blocker in it.