Gas Furnace Venting Clearances

Also known as the type b this vent is operating on the natural air convection.

Gas furnace venting clearances.

Refer to the furnace rating plate. We describe the installation fire clearances to combustibles the use of an auxiliary blower unit and the ability of the gas furnace to deliver. Temperature of the vent pipe is transferred to the surrounding area and all the materials that are in the vent pipe vicinity. 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 no matter where you live or whether your home is small or large goodman probably has a gas furnace to help keep your home warm and comfortable. The 90 afue rating on these gas furnaces means that 90 cents of every energy dollar warms your home thus wasting very few energy dollars. Fire clearances required range from 6 to 36 depending on the equipment. Install this furnace only in a location and position as specified in location and clearances page 4 of these instructions.

A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace. 9 is a typical clearance between a gas fired boiler or furnace flue connector and combustibles. If you apply heat to a combustible material for some period. We marked on your gas vent photo the two measurements that are typically made.

Gas burning appliances vent pipes produce heat when discharging exhaust gases to exterior. Problems start arising if those materials are combustible and located to close to the furnace water heater vent pipe. Direct vent gas vent clearance required depend in part on the size in btus btuh or thousands of btus per hour input rating of the heating appliance. Table illustrations of the required space between a direct or side wall vent for a gas fired heating appliance and building windows doors corners gas meter air intakes sidewalks balconies.

When the vent is withdrawing air from the house it expels the gas outside through the vent. Inadequate fire clearance from combustibles may not be obvious until you open a door such as our client is pointing out in this photograph. The vertical distance to the window and the horizontal distance to the window from the nearest point of the gas vent. The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber.

Use only with the type of gas approved for this furnace. Provide adequate combustion and ventilation air to the furnace space as specified in air for combustion and. See direct vents side wall vents for a complete table of recommended clearance distances from a direct vent gas appliance terminal to other building. Gas appliance direct vent clearances distances from direct gas vent to building features sidewall vent direct vent direct exhaust systems for gas fired heaters water heaters other appliances.

Usually these are gas fired direct vent units such as the gas furnaces described in the text below.