Hello,
I have a 4” insulated combustion air line coming in beside my furnace. I know it’s need for air flow. My question is when nothing is running, there is still a breeze of air coming in. Is this normal? Or will hot water tank keep suction going?
thank you
I have a 4” insulated combustion air line coming in beside my furnace. I know it’s need for air flow. My question is when nothing is running, there is still a breeze of air coming in. Is this normal? Or will hot water tank keep suction going?
thank you
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