Indirect Fired Heaters

Indirect water heaters use heat transfer to create hot water.

Indirect fired heaters. An everyday example of an indirect fired heater would be a gas furnace with a chimney. En fab recommends indirect fired heaters whenever possible as they are safer cleaner and require less maintenance when compared to direct fired heaters. Built in thermostats almost all indirect fired heaters use a thermostat can operate in tightly sealed spaces indirect fired heaters do not release. Instead heat transfer coils run between the tank and either a boiler or furnace.

Where an indirect fired water heater is installed the coil is inserted not in the heating boiler but rather in the bottom of a hot water tank. The heaters are larger than direct fired heaters making them more difficult to transport. The fluid in the coil is heated and then cools off in the water tank cycling back through to the heat source. Indirect fired heaters use about 80 percent of the combustion gases to heat air.

A portable indirect fired heater is a mobile furnace with a fan forcing air over a heat exchanger. Indirect fired heaters en fab inc. Is a leader in the design and manufacturing of custom engineered heaters. This means there are no electric or gas heating elements in the tank itself.

Amtrol 2775s5009 whs 60 premier boilermate indirect fired water heater with phcc. Veloci blaze 200 mobile indirect heater w preheated filter. 48 7003 max 200 000 btu output br fuels diesel fired. Lochinvar sit065 67 gallon squire indirect water heater.

This makes these heaters ideal for use in more enclosed less well ventilated areas such as enclosed workshops halls and marquees where unclean air could affect the occupants of the area. Air is heated by passing over the heat exchanger allowing the combustion by products to remain within the heat exchanger which is then exhausted through a flue. The heater uses oil or gas as well as electricity. Portable forced air heaters propane natural gas heaters.

Indirect fired diesel space heaters provide large volumes of clean fume free warm air. Heat wagon 110k btu hospital tent heater hvf110 electric heaters. While the heater produces clean air it requires exhaust ventilation using a flexible tube that vents the fumes outside. In an indirect fired heater the burner is fired into a heat exchanger.

100 clean dry air the air being circulated never comes in direct contact with the flame.