An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size.
Minimum clearance for furnace attic.
If you want to purchase a mid efficiency furnace for your home then the price profile for the equipment is similar with a downflow model compared to an upflow one.
This 20 limitation applies to the minimum 30 height only low clearance attics.
American gas association has certified the design of condensing furnaces for a minimum of 0 clearance from combustible materials with a single wall plastic vent pipe.
So why put an hvac system up in the attic at all.
On 2019 07 27 by bill.
Municipalities may require a minimum of 30 clear inches in front of the furnace which can be accomplished in a small room if the door to the room opens in front of the furnace.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Minimum opening size the 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches.
See direct vents side wall vents for a complete table of recommended clearance distances from a direct vent gas appliance terminal to other building.
2015 irc m1305 recommends that the furnace have a level working space of at least 30 inches by 30 inches in the front of the appliance.
Install passageway platform minimum 24 inches width and maximum 20 feet in length to fau.
Well mainly it s a way to save space.
Passageway if headroom is less than 6 ft attic furnace minimum 30 in deep and wide in front of furnace access by an opening as large as the largest piece of furnace and in no case less than 22 in by 30 in located in a hallway.
On 2019 07 27 by mod gas meter clearance to weber grill.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Our houses are fairly close together and i measured 9 1 2 between my proposed sidewall vent position and our neighbor s home.
Expect to pay around 1 000 for the equipment along with another 1 000 to install it for most geographic locations.
What is the minimum clearance from a sidewall direct vent to a neighboring home.
Attic hvac systems save space.
All other clearances are fine.
Minimum clearances from combustibles shall comply with the listing of the appliance.