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Itchy-Ad4005 t1_isuqbg9 wrote

I would like to do the same, if a water heater and furnace are located in the garage, would the garage require a negative pressure relief vent from outside?

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barto5 t1_isuqqr5 wrote

If they’re gas appliances it’s not a bad idea. Probably not necessary but better safe than sorry.

If they’re electric appliances then, no. You don’t need to.

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