Minimum Clearance For Furnace Attic

So why put an hvac system up in the attic at all.

Minimum clearance for furnace attic.

Minimum clearances from combustibles shall comply with the listing of the appliance. On 2019 07 27 by mod gas meter clearance to weber grill. The cost profile for a furnace in the attic is competitive. Attic hvac systems save space.

If there are no obstructions on the passageway to the attic furnace and it has a minimum 6 feet 1829 mm height and 22 inches 559 mm width along its entire run the walkway length limit goes up to 50 feet 15250 mm in irc international residential code and has no limit in umc universal mechanical code. See direct vents side wall vents for a complete table of recommended clearance distances from a direct vent gas appliance terminal to other building. An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size. What is the minimum clearance from a sidewall direct vent to a neighboring home.

On 2019 07 27 by bill. 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. 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. Our houses are fairly close together and i measured 9 1 2 between my proposed sidewall vent position and our neighbor s home.

Attic access may be reduced to 22 x 30 provided the largest piece of equipment can be removed through the opening. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. Well mainly it s a way to save space. All other clearances are fine.

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. 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. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. This 20 limitation applies to the minimum 30 height only low clearance attics.

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.