Questions, answers and advice for people who own or work on houses built during the 20th century.
4 posts • Page 1 of 1
Hey, I've got one room in old house on the second floor that is either too cold or too hot. It is the only room with a gravity vent... that doesn’t seem to function very well. We keep the door to that room shut alot and I am wondering if an air transfer grille over the door would help? I have posted a "blueprint" of the house layout and supply/returns. Red boxes are the supplies. What do you think? I would add another supply but the way the house is setup it would be tricky to do without it impeding in the living space which I would rather not do. Hoping to sort this out another way.
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Usually a door undercut of 3/4" or so is adequate to act as a transfer for the amount of air needed to heat/cool a room. Is there an undercut? I'm not sure you're going to gain much with a transfer grille. Is the gravity vent transferring to the living room?
There isn’t really much of an undercut plus the bedroom is carpeted which sort of blocks the undercut some anyways. Yes, the gravity vent transfers to the living room, above the supply vent that faces the porch.