What are heating venting systems?

By definition, heating venting systems are a heat producing appliance that is connected to a venting system that removes flue gases from an appliance and delivers it to the outside atmosphere.

Learn about different types of vents

A heat producing appliance has a combustion chamber and a heat exchanger. In many systems, heat exchangers are barely distinguishable and not separate from the combustion chamber. Venting systems consist of a chimney or vent, and some can consist of various types of pipe that transfer the gases from the appliance to the chimney.

Tips on saving energy

A fireplace is also a heating system and may be built in or freestanding. Built in fireplaces may be masonry, masonry with a metal firebox liner or factory built.

How Do I Keep My Fireplace Safe?

Heating appliances are categorized as space heaters and central heaters. Space heaters include freestanding units, hearth stoves and fireplace inserts. Central heaters include furnaces using heated air, hot water heaters, boilers, low pressure steam boilers and domestic hot water boilers.

Residential type chimneys or venting systems may be masonry, metal factory built or modular masonry factory built. Metal factory built chimneys traditionally come in several basic designs: Mass insulated which can be either solid pack or blanket insulation; Air insulated; and Air cooled.

Types of chimneys

Some newer chimneys incorporate a combination of mass insulation and air cooling into a triple wall design.Learn more about insulating

A chimney or vent connector connects an appliance directly to a chimney or vent. Connectors may be type L, type B, listed double wall pipe or single wall connector. Connector devices include dampers, heat reclaimers and catalytic combusters.More on Components

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