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Boiler help?

Aaron716
Aaron716 Member Posts: 7
IMG_20250519_130552517_HDR.jpg

Which way does the water flow? Could the pump be backwards?

Comments

  • hot_rod
    hot_rod Member Posts: 25,141

    that pump looks like it is flowing down, supply may be out the top of the boiler?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    mattmia2
  • Aaron716
    Aaron716 Member Posts: 7

    It is flowing down but I don't know if that's correct, I am getting no circulation though the pump is running and working I checked. I tried flipping it over and sent it up and got good heat. So I shut it off till I know and understand it. I know the previous owner was diy-ing and I wonder if it was installed wrong. I want it right thouh

  • JUGHNE
    JUGHNE Member Posts: 11,430

    Close up picture showing the back side and the flanges please.

  • Aaron716
    Aaron716 Member Posts: 7
    IMG_20250521_144950629.jpg

    It can be modified so the control is flipped over depending on the side you put it on.

  • mattmia2
    mattmia2 Member Posts: 12,887

    sounds more like the system is air bound and the circulator can pull from the water in the boiler and send it up through the air pocket in the piping but it can't pump an air pocket

    are there any flow checks in the system?

    Mad Dog_2
  • Aaron716
    Aaron716 Member Posts: 7

    There is no flow checks or bleeders anywhere except the top of the expansion tank. It is a tiny little house 20x30. Thats a interesting point though bout the air pocket, I've been considering that.I did blast city water through the system until I got good stream out of the ball valves

  • Aaron716
    Aaron716 Member Posts: 7

    I have a friend with a propress stopping to put bleeders on next weekend, it's just still cold here wanted to take the chill out of the air.

  • hot_rod
    hot_rod Member Posts: 25,141

    it is fairly common to have circulators on the return if packaged cast boilers

    If the exp tank connects to the top of the boiler you should be pumping away and work fine

    I assume it worked previously? What changed?

    How is the fill pressure?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    Mad Dog_2
  • Aaron716
    Aaron716 Member Posts: 7

    Well I came into this cottage during the winter when the previous owner had allowed all the pipes to freeze repeatedly, he fixed everything with shark bites and no bleeders, the pump appears new and I believe he replaced it, I am very skeptical about his knowledge, he gave up on the place. I'm a framing /finish carpenter and just trying to fix it, I will get someone if I have too, but this place is well off the beaten tracks.

  • Aaron716
    Aaron716 Member Posts: 7

    Fill pressure was a little high 24 psi. But I thought maybe I had a little too much water in it, I didn't let it get hot only on long enough to feel all pipes getting warm. I'll take better pics tomorrow.

  • mattmia2
    mattmia2 Member Posts: 12,887

    do you have valves in the right place to be able to purge it? you need a valve in a place that can block off flow through the boiler so it can go from the pressure reducing valve or manual fill valve or a hose connected to a drain connected to a water supply, through the system piping, and out another drain, usually from the supply to the return but the direction isn't critical if there aren't any flow control devices.

    if you don't have a valve to block flow through the boiler you will just flush the water through the boiler.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 17,881

    Your probably air bound but if the previous owner didn't put any valves or bleeders in your going to have a tough time.

    If the water is not moving I would recommend you shut the pump off before it gets ruined from running dry.

  • Intplm.
    Intplm. Member Posts: 2,647

    If you are going to go to all of this trouble, consider moving the circ. to the supply rather than leaving it on the return. Pumping away.

  • Steamhead
    Steamhead Member Posts: 17,804

    @Aaron716 , where is this located? We might know someone who can help………………

    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting