Draft Type

Draft mechanism used for drawing air through a boiler, furnace, or water heater.

Data Type: 
Constrained List
Unit of Measure: 
Commercial, Residential, Multifamily
List Options Option Definitionsort ascending Unit of Measure
Unknown Unknown None
Other Other None
Not applicable Not applicable None
None None None
Mechanical forced Mechanical forced draught is provided by means of a fan forcing air into the combustion chamber. None
Mechanical induced In mechanical induced draught exhaust gases are pulled out of the boiler by either a steam jet or an induced draught fan. None
Natural A natural heater has no blower fan and does not connect to an A/C power source. A natural draft type tankless heater takes it's "intake" combustion air from inside the room in which the heater is mounted. It then uses a natural draft to pull the exhaust out through a flue pipe exhaust. None
Direct ventilation None
Term ID: b2bc8a23-9a79-4a91-9903-4e0a495595b8