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Old 09-10-2018, 02:45 PM   #39
Irish mist
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Originally Posted by swnoel View Post
No it can't... only the manufacturer can manipulate that! He's talking about the efficiency the tech told him his boiler was after they did the combustion test. I've done thousands of them.
It is the AFUE. Considering that you have no idea that new cars are far superior these days to older ones I'll take any of your future info with a grain of salt.
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