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    Big Maxx MHU45 glowing red

    Well got the manometer and adjusted to 3.6. Alot better but still glowing red while running. I called mr heater last week but they were closed for the holidays of course so hopefulloy i will hear from them on monday. If not I have a gas fitter that is going to come by later in the week and let...
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    Big Maxx MHU45 glowing red

    Well I have heard some say its bad, others say its normal. I am going to try to adjust the manifold pressure to 3.6 as per the instructions in the manual and see what happens as the altitude here according to my gps is 3600ft. Problem is I need a monometer to do this. They are ******...
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    Big Maxx MHU45 glowing red

    I pulled into the garage last night and the garage door opener lights did not come on. In the darkness I noticed that the heat exchanger tubing on my big maxx heater was glowing red hot while in operation. I never would have noticed it with the lights on. They glow red at the point where they...
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    75k mr maxx exhaust question

    Does the transition pipe connect right to the exhaust pipe? I bought the 45000 btu big maxx heater and the horizontal accesory vent kit. The vent kit adapter (3" to 4") slides right over the transition piece attached to the blower with a 1/4 inch gap all the way around. This can't be right...
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