12 thoughts on “Harman PB-105 Pellet Boiler Plumbing – 105 – My DIY Garage Build HD Time Lapse

  • January 4, 2013 at 12:21 am

    Good luck with that manifold I bought the same one and was very happy with
    it until I actually started to use it. It is so restrictive in flow that
    Taco 10 pump cant push enough fluid thru it No to mention it will leak on
    you and gauges are useless

  • January 4, 2013 at 6:35 am

    Cool man! Keep Em coming!

  • January 4, 2013 at 5:12 pm

    This is great advice. I would say for anyone else reading, I’m finding the
    same things with these manifolds. I’ve had one zone leak on me. I’ve broken
    one of the gauges, and the knobs are useless for anyone without tiny hands.
    Thanks for the comment man! :)

  • January 4, 2013 at 8:10 pm

    Tested gauges in hot water. 20 degrees difference between them leaked from
    the drain valve on the hot side what looks like garden hose threads on hot
    and cold is some unknown fitting because garden hose, even with 2 rubber
    gaskets will leak. Flow valves are very restrictive and inaccurate. Mine
    were fully turned in and according to Pexuniverse you have to unwind them
    1/4″ out so they start to flow. I did that and one started to leak.

  • January 4, 2013 at 8:15 pm

    If you look into shut off valves on cold side in fully open position the
    gap between the pipe and rubber cap is only 1/16″ therefore super
    restrictive. As I mentioned b4 I have a big pump, Taco 10 which I was told
    is a overkill for my system yet the manifolds are so restrictive I cannot
    have enough flow for my thankless heater to detect flow and turn on. Im
    chopping the flow meters and removing valves. Have to do some welding to
    cover the holes.

  • January 4, 2013 at 8:20 pm

    Yeah i’ve noticed same thing with the drains on the right. I broke one of
    them off, which meant it couldn’t shut anymore, so I took it out and
    plugged it. Also, you can take the mount for those valves out and just put
    a plug in the manifold. I had to do that for one of mine. although I had to
    use tons of teflon tape and not super confident it’ll stay not leaking.

  • January 6, 2013 at 2:39 pm

    Sorry to be off topic. Way back you found a way to pan your camera during
    time lapse. How did you do this as the effect is awsome.

  • January 11, 2013 at 6:32 pm

    Impressive project. The arrangement of the boiler’s circulator and
    expansion tank should be reversed, however. As it is now, the pressure in
    most of the system will drop when the circulator is turned on. If you have
    trouble getting all the air out of the system, this might be the culprit. G
    Whiting, EcoHeat Solutions

  • January 11, 2013 at 6:34 pm

    Really? What an awesome comment! Thanks so much! So pump after expansion
    tank.. got it. :)


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