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Combustion Chamber of Horrors

andyshane

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Our Aqua Hot was a little smokey. Replacing the nozzle and filter, along with checking the output pressure, didn't do the trick.

The exhaust can be tested, easily: hold a paper towel over the end for 10 seconds, note the pattern.

What finally reduced the smoke was adjusting the air intake bypass, a slot cut in the intake pipes that overlap, has a set screw. I went from a solid black circle to light gray, on the towels.

Visit www.aquahot.com for owners and service manuals.

Below is the combustion chamber before and after a vigorous wire brushing:



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