Home>Discussions>INSULATION & HVAC>Insulating around Water Heater exhaust pipe
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Bloodta
Insulating around Water Heater exhaust pipe

Can I use Cotton insulation around the exhaust pipe that runs through my garage ceiling?

RJordan
Re: Insulating around Water Heater exhaust pipe

No. Use a fire rated product like Therma-fiber.

crabber93
Re: Insulating around Water Heater exhaust pipe

Here we have to use double wall pipe through all combustibles

RJordan
Re: Insulating around Water Heater exhaust pipe

I was assuming the code approved pipe was being used, as crabber recommends. I would still want 2 inches of fire rated material separating the pipe from combustibles.

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