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BobBob Member Posts: 25
Why does my oil burner service tech set my pump pressure at 95 psi instead of 100 psi?


  • Harvey RamerHarvey Ramer Member Posts: 1,741
    I don't know.

    Big thing, is he using a combustion analyzer to properly set the burner? Is he properly cleaning the heat exchanger?

    If no to any of the above, send him packing.

    Ramer Mechanical
    To learn more about this professional, click here to visit their ad in Find A Contractor.
  • icesailoricesailor Member Posts: 7,265
    Lowering Oil Pump Pressure:

    Because he doesn't know that he just down rated your boiler and made it run worse?

    Most today use a smaller nozzle with higher pump pressures to get better atomization. You get the same results because higher pressures move more product through the nozzle so you make the nozzle smaller. They have charts.

    If he can't explain why he did what he did, you might consider someone else.
  • BobBob Member Posts: 25
    pump pressure set to 95 psi

    The boiler is very old .Could this prevent burning it out? It is a steel boiler.
  • STEVEusaPASTEVEusaPA Member Posts: 1,257
    edited February 2014
    couple of reasons....


    Or maybe he didn't have a smaller nozzle and he lowered the pump pressure thinking it compensates.

    Or he doesn't understand proper combustion and all its elements, especially draft.  When he looks at the fire and lowers the pump pressure, it looks 'better' to him.  Maybe poor draft or partially plugged heat exchanger (poor, lazy cleaning), has the flame impinging off the back and this is his remedy.

    Either way, get a better guy if you can.
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