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Preventing Condensation in Venting
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Stokehold
Member Posts: 43
If a 3" PVC vent for a high efficiency power vented water heater or furnace must travel through the unconditioned space of a home (attic), what is the recommended type of insulation to wrap the pipe to minimize condensation? Is it better to use a foil backed foam wrap, fiberglass or pre slit foam sections?
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Is it a condensing appliance?
Check with the manufacturers install guidelines, but my condensing boiler install manual was pretty clear on PVC vent insulation:
"DO NOT thermally insulate the exhaust vent or intake pipes. "0 -
I had looked into this for my dad as when it's -20F out the fresh air intake sweats like you would've believe. I believe the instructions to his recommended insulating the intake.NY_Rob said:Is it a condensing appliance?
Check with the manufacturers install guidelines, but my condensing boiler install manual was pretty clear on PVC vent insulation:
"DO NOT thermally insulate the exhaust vent or intake pipes. "
What does the manufacturer of your boiler want someone to do under these conditions, just let it drip all over?
Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0
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