Furnace Exhaust Heat Recovery

Waste heat recovery elevates furnace efficiency to higher levels because it extracts energy from the exhaust gases and recycles it to the process.

Furnace exhaust heat recovery.

I know they sell heat recovery units for wood stoves with a 6 pipe i wonder if i could use one of those with my gas appiances. There are four widely used methods. A recuperator is the most widely used heat recovery device. The heat recovery system is connected to the off gas treatment system of the melting electric furnace.

Significant efficiency improvements can be made even on furnaces that operate with properly tuned ratio and temperature controls. Captured and reused waste heat is an emission free substitute for costly purchased fuels or electricity. Designs rely on tubes or plates to transfer heat from the exhaust gas to the combustion air and keep the streams from mixing. A regenerative burner is with a heat recovery system that recovers the waste heat of the furnace exhaust gas to heat up the combustion air needed for the burning of the fuel at the burner.

This heat recovery process is accomplished in such a way that the stale air is never mixed with the fresh air. Use of regenerative burners for reheating furnaces can provide significant energy savings. Also if i try to steal the exhaust heat am i going to have to come up with some sort of induced draft fan. A recuperator is a special purpose counter flow energy recovery heat exchanger positioned within the supply and exhaust air streams of an air handling system or in the exhaust gases of an industrial process in order to recover the waste heat.

It is a gas to gas heat exchanger placed on the stack of the furnace that preheats incoming air with exhaust gas. Maybe something as simple as coiled copper tubing inside the exhaust vents to heat water.