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Dan's latest newsletter

ross_5
ross_5 Member Posts: 19
in THE MAIN WALL
I was just reading the piece about 3 sales models in Dan's latest newsletter. I am questioning the guy selling only condensing boilers. If you are going into an old system (you know, 180 F supply, 20 degree delta T), are you ever going to be in condensing mode to get those higher advertised efficiencies? Are there other advantages to those units that I'm not seeing here?

Comments

  • Tom Hopkins
    Tom Hopkins Member Posts: 554
    It depends

    but in most systems you'd be surprised how often it does condense

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  • ross_5
    ross_5 Member Posts: 19
    condensing boilers

    > but in most systems you'd be surprised how often

    > it does condense_A

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    > 313&Step=30"_To Learn More About This

    > Professional, Click Here to Visit Their Ad in

    > "Find A Professional"_/A_



    Are you talking about part load conditions? I've wondered whether a condensing boiler could be justified for an existing old style system just based on the part load condensing situations.
  • ALH_4
    ALH_4 Member Posts: 1,790
    Yep

    Outdoor reset and burner modulation are both very important. Design temperatures are just that moment in time that we design for. The vast majority of the time, outdoor reset keeps the boiler at lower temperatures. Also, mod/cons are more efficient at lower modulation.
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