What should a Well-MClain heat exchanger look like after cleanin

MW

What should the heat exchanger and smoke pipe look like after cleaning?

oil-2-4-6-gas

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what kind of boiler is it --do you get annual service or do you wait years until it goes out --then expect to get it to shine --

oil-2-4-6-gas

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i should read next time 468 --its been a long day dealing with outrageous expectations ,the service guy should have brushed out the flue pipe with a soft brush-this removes only the loose build-up it will still be black,the heat exchanger should have been brushed with a medium wire brush and will-open up the nipples ,but it also will still be black --just no build-up

MW

one-two months later soot in exchanger and flue pipe 1/16
to 1/8" thick. Thanks for response. What about heat-back pressure coming out inspection port in chamber?

techheat_2

It's not the cleaning

but rather the adjustment of the burner to proper specs,a brand new boiler with a burner running a #2 smoke will be as dirty as yours in as little as days. Something is wrong.

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Ken_8

It should be spotless!

The clean out covers should have all been removed. The pinned HX brushed until no soot or scale was visible within the vertical passes, many use water to make the final cleaning spotless and the clean out covers neatly cemented back. The breech shaoul be pulled, vacuumed and the chimney base as well.

The design of the W/M 68 series had a potential draw back. That being how easy it is to whack the soft ceramic refractory chamber below the HX (actually forming the firebox) that can be whacked by brushing just a few inches below the HX bottom!

Many vacuum all the fallen soot and scale from the firebox and if not careful - will again whack the soft chamber and damage it further.

New nozzle, electrode inspection and filter replacement are all typically done as well.

The final part is dialing in the bruner for zero to a trace of smoke and leaving the burner setup with instruments and leaving a data "tag" which states the combustion parameters as left.

There are a few other things that shoule be done, but that's the basics.

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MW

you guys are great-a bunch of good answers-the only thing
more I could ask for is pics.