The firebox normally sits on a masonry base at the floor level of the room.
Floor vent above fireplace.
A gas fireplace can generate 20 000 to 35 000 british thermal units btus of heat per hour.
Here is the valor horizon direct vent gas fireplace heater manual l pdf if you don t already have a copy the vent must be at least 12 above grade level per the manual p.
And above the roof is more round metal chimney sometimes surrounded by a simulated brick housing.
Almost all ceiling support boxes and ceiling collars factor in chimney pipe clearances.
Bottom air vent the bottom air vent on old style heatilator fireplaces are where cool room air is drawn into the fireplace.
24 as shown in your drawing water can enter the vent assembly causing rust damage safety concerns.
On 2019 03 22 by macintosh.
The area above the fireplace is often warmer than other wall surfaces in your home.
Add an inch to the distance for every inch that the.
As a general rule a mantel is placed about 12 inches above the fireplace opening.
You can find floor registers in a variety of materials styles and finishes so you can incorporate them as a decorative element that also blends.
Use a plumb bob to determine the center location of the ceiling support box or support above the stove vent collar.
If your floors are in danger it is probably because of the heat the fan system produces.
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A gas fireplace produces a large amount of heat but most of it is focused either upward through vents or downward into the floor beneath the fireplace.
The inner or outer floor of a fireplace usually made of brick tile or stone.
Then cut an appropriately sized hole in the ceiling to accommodate the fixture.
If you look up past the damper you will see a round metal chimney.
These places are where heat is gathered by your fan system and blown out into the room.
Hearth the fireproof area directly in front of a fireplace.
Magnetic vent cover 8 x 15 5 extra thick wall floor ceiling vent covers 4 pack that will reduce sound very flexible and will stick to your vents made from premium magnets by kelbert.
Registers grilles vents.