Direct Vent Furnace Definition

Subpart a general provisions the term direct vent system means a system supplied by a manufacturer which provides outdoor air or air from an unheated space such as an attic or crawl space directly to a.

Direct vent furnace definition.

Chapter ii department of energy. This is because direct vent gas heaters do not require any outside air to function and are the perfect size to fit into areas where space is at a premium. Direct vent technology describes a gas burning appliance and how it uses two pipes often one smaller pipe within another larger pipe to both exhaust the appliances flue gases and bring in fresh air that it uses for combustion. They are one of the safest most convenient and most popular ways of adding a gas fireplace to your home.

Subchapter d energy conservation. 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. Are appliances that draw all combustion air from the outside atmosphere and discharge all flue gases directly to the outside atmosphere. In case of a sudden influx of cold air the energysaver direct vent wall furnace automatically adjusts fan speed and btu to quickly restore warmth to the room.

Part 430 energy conservation program for consumer products. That was the condensed version of the ifgc definition. 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. Heat is distributed evenly and heat loss is minimized since rinnai energysaver direct vent wall furnaces require no ductwork.