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Discuss New Danfoss oil pumps / bypass screw in the Oil and Solid Fuel Forum area at

  1. Gazzt

    Gazzt Active Member

    Just to warn oil boiler engineers, new danfoss oil pumps come setup for a two pipe system, so you have to remove the bypass screw for single pipe installation. It will save you time cleaning soot out and potentially damaging the new pump.
    • Informative Informative x 2
  2. Best

    Best Trusted Plumber Top Contributor!!

    I must look out for that! Most boilers are still single oil pipe and oil hose
  3. johnf

    johnf Active Member

    I can't see any logic in doing that as most oil boilers run off a one pipe system as Best has said. Thanks for the heads up though. Good old Danfoss!!
  4. Gazzt

    Gazzt Active Member

    I know its really annoying, i have went to quite a few jobs handymen have fitted a new pump and it left a sooty mess.
  5. heliotrope

    heliotrope Plumber GSR

    Probably to save the cost of the little plastic bag that they
    packed the screw in.;)
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