2 ms·
Not if they are in the attic. Also, my house has a subfloor. When the furnace and water heater were inside the part of the house you live in, they both had vent
by AuthorizedCust 6y ago
Not if they are in the attic. Also, my house has a subfloor. When the furnace and water heater were inside the part of the house you live in, they both had vents on the floor, so air used for combustion came from outside.