The door to the enclosure also has to be gasketed and the hwh must be some minimum distance above the floor of the garage.
Enclosing furnace in attic.
You ll also free up a closet.
There s usually nothing up in an attic aside from some stored items so a furnace won t take up useful space.
Typically the water heater is located in the closet also.
When a furnace is in a room that has less than 50 cubic feet of air for every cubic foot of gas 1 000 btu hr vents are needed in the room.
This is one reason building codes today require gas hwhs in garages to be in separate enclosures with combustion air supplied from outside the garage the attic above the garage is acceptable.
Ductwork goes through open ceiling into the attic then into the house.
Stated another way 1 cubic foot of air is needed for.
However not every home has a pre existing designated space for a system.
This drain removes the excess water that a heating system will generate.
The trick to the installation of a gas furnace in an attic space is routing the condensate drain from the attic down through the core of the house to the basement.
Attic furnace passageway minimum dimensions requirements.
The drain must be installed through the core of the house as water will be flowing during the colder months.
Older or historic homes for instance often featured much smaller heating systems than the modern ones we install today.
As a result their designated space for a furnace is often no longer a.
So what makes a furnace enclosed.
Use concrete blocks or a concrete pad to set the base of the furnace at least 4 inches above the floor to prevent any water from reaching it.
Elevate an enclosure in a basement or garage.
If the closet is next to one of the bathrooms as it often is this gives you a nice remodeling opportunity.
Furnaces in closets attached to the garage is the rule in our area.
The biggest advantage of having an attic furnace is that it s a space saver.
30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm measured along the center line between the attic access opening and the attic furnace.
Where the furnace is enclosed louvered openings in the room should be provided to ensure there is adequate air.