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downfire a buderus

Larry_10
Larry_10 Member Posts: 127
in THE MAIN WALL
I was wondering with buderus g115-28 can I put .70 nozzle
on the burner instead of a .80 downfire in 10% or will this cause condensing and and make it's combustion chamber to cold to expel the gasses of combustion I know some boilers you can down fire but not by much

thanks

Comments

  • Joe@buderus
    Joe@buderus Member Posts: 165


    Hello Roosterboy!!
    It is not recommended to down fire a Buderus boiler. Because the boiler sections form the chamber and there is no liner, down firing can cause un-even heating, thermal stress on the sections and combustion issues. Is this question to try and reduce the short cycling?
    Thanks,
  • Larry_10
    Larry_10 Member Posts: 127


    thanks Joe yea I wired both my zones to one t-stat today

    and the boiler has been running good and both zones heat ok no more short cycle nice good 10 min runs.

    im getting the 2107 in a few week anyway because I am going to dump the heating out of my hydro air and use the buderus panel rads with my 2107 out door reset.

    also I am adding new windows to my house this will make my heat load less but the house will be more even heat most of my friends houses use one t-stat I am going to have to also.

    talk to you in a few weeks Joe when my 2107 comes in
    looking forward to your help in programming it for hydro air

    thanks
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