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Checking combustion on miller mobile home furnaces

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tylerjgardner
tylerjgardner Member Posts: 9
in Gas Heating

Hey how do you guys check combustion on these furnaces without going on the roof? Miller downflow mobile home furnace. Model # M1BB086ABW

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  • HVACNUT
    HVACNUT Member Posts: 7,362
    edited 3:21AM

    Miller doesn't mention combustion in the manual. They mention draft and adjust for efficiency. 🤪

    I take the readings over fire. You can't put the analyzer probe over fire, but I have one of these for EK boilers that I also use on Miller/Nordyne with the concentric venting. Wrap a rag around it at the door to prevent drawing air.

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