Best way to check a crack in heat exchanger

Guy_6

The old timers used some oil of peppermint or wintergreen. Block the flue, put a few drops in the combustion chamber, and run the blower. If the minty freshness makes it upstairs the chances of a breach are good.

ozone357

cracked exchanger

What is the best way to check a crack heat exchanger before a complete teardown?

Alan R. Mercurio_3

Oil Tech, There are a few ways but check this out.

Checking for Cracked Exchanger

Your friend in the industry,
Alan R. Mercurio

www.oiltechtalk.com

Glenn Harrison_2

Here's a link

to a post on Oil Tech Talk's gas heating forum that has plenty of information on checking for cracks.

HEAT EXCHANGER INSPECTION METHODS

Ted Robinson

Found a leaking heat exchanger

On an older gas furnace: The heat exchanger was cool. Placed my hand on the flue gas ouuutlet while turning the blower on 'Manual". I definitely felt an air flow on the combustion side of the furnace.