There are ductwork kits that can take some of the guesswork out of this job.
Venting garage heater through metal roof.
The size of the duct you ll use depends on the size of the vent flange on the heater.
Connect the exhaust hose to the fan and then push it through the roof until the nozzle is entirely through.
Whether you plan on installing the ducts through the roof or cut holes in the wall of your garage these will be very useful.
How to vent a garage heater.
Should you vent a metal roof.
You ll need to same tools as the ones required for a roof vent.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
Secure the hose to the outside of the roof with the installation brackets provided in a kit.
The other option of course is a vented attic which requires an equal balance of intake and exhaust vents.
Metal roofing works well with this because the metal is unaffected by heat not being able to pass through it and enter the attic.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
I just built a garage with a metal gambrel roof.
Then connect the wires to the fan and screw the fan into the ceiling or side wall.
With a few tools it is easy to vent a garage heater.
Some people prefer this method since this option allows you to maintain the integrity of your roof.
Installing some type of ventilation mechanism on a metal roof is not a lot different from the addition of vents to any type of roof.
However there are a few simple tips that will help make the process a little easier and also ensure that the vents are placed to allow the maximum benefit.
Venting a garage heater through a wall the other solution to ventilating your garage when installing a gas heater is to run the vent duct through the wall of your garage.
Natural gas heaters for garages must vent exhaust gasses from the burners to the outside of the building.
You ll want your ductwork and the flange to be of the same size.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
Venting heater through metal roof 12 9 2014 within the i have an existing metal roof and have a question discussion of the residential metal roofing forum.
Connect it to the duct run with four sheet metal screws.
In many cases for existing homes this is the easier way to go.
Insert the 2 foot piece of 4 inch b vent pipe through the hole in the garage wall from the outside in.
Typically the gases are vented from the heater to the outside of the garage with galvanized sheet metal duct.
It can also be useful for wall mounts especially if these mounts are on the upper side of a tall garage.
