As part of my major remodel, I’m planning to convert to a gas-fired, tankless water heater, and I’m thinking of placing the unit in the attic. Any code issues or other reasons why this might be a bad idea?
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Replies
Access & proximity to combustibles is the only thing that comes to my mind.
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When it leaks and all water heaters will eventually leak, it can cause extensive damage in an attic unless it has a very good drip pan with a drain that is kept clean of bugs, nests, etc.
Bill
Depending on your climate, there is also a freeze risk. Many units have a freeze protection feature that keeps any water in the unit safe, but that doesn't apply to the pipes to and from the unit.
Beer was created so carpenters wouldn't rule the world.
I have a Takagi in the attic, with a rupture pan under it. I had to run gas and water up there, which wasn't a big deal. There's a nice short run of that really expensive stainless flue right thru the roof. Piece of cake. Since Takagi heaters make some noise it's actually a great place for it.
Ditto to the aforementioned posts. Tankless water heater is fine at the attic. Drip/catch pan is "required." Most frequent installation screw-up is not sizing the gas line properly.