Cleaning Furnace Secondary Heat Exchanger

Usually i d guess that lack of regular maintenance led to the sooting problem.

Cleaning furnace secondary heat exchanger.

If you crawled in then just take a vacuum cleaner with you and crawl in and clean away also a long handled brush will help. A shady repair technician may try to trick you into believing the heat exchanger in your furnace is cracked and leaking deadly amounts of carbon monoxide into your home. To the best of my knowledge this unit does not have a secondary heat exchanger as it only has one heat exchanger. A heat exchanger in your furnace or boiler is what heats either air or water that is then used to heat your home.

Secondary heat exchanger cleaning. Remove these with a screwdriver or ratchet in order to take the fan out. Usually that means neglected burners that are dirty or corroded but it could be other things. Cleaning the secondary heat exchanger in a condensing furnace is usually difficult and a mess.

Most build up will be on the blower side or bottom of the reheat coil. Here are a few scenarios where duct cleaning may be necessary. You can wrap a small piece of tape around each wire and label it to make reassembly easier just make sure to remove the. A home heat exchanger is less likely to fail due to dirt and grime then a heat exchanger in a car or ship.

Secondary condensing heat exchanger. The secondary heat exchanger in high efficient furnaces are a very important component to have cleaned. A rheem rgda model furnace is used for the demonstration. The heat exchanger is connected inside the furnace or boiler with metal tubes that transport the water and air exchange.

Place your vacuum suction below the reheat coil and using air pressure carefully blow the coil clean. They will push you hard to either get it fixed immediately or replace the unit entirely on the spot. Here more heat is extracted resulting in the gases that are cooled to the point that they condense into water and carbon dioxide. Some fans are held in by screws or bolts.

In condensing furnaces there is a secondary heat exchanger made up of small tubes that receive the exhaust gases once they have gone through the primary heat exchanger. I suggest a mask and goggles for safety purposes. That was best avoided.