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heater banging help needed

The system (what I know of it... dad designed, died 9 years ago):

2 oil fired boilers

baseboard heaters in 4 zones

about 17years old

have been having problem(s) off and on

with start up of boiler, lower floor rooms often experience loud banging (like sledge hammer on pipes/floor)  adjusting thermostat will often stop (or closing zone)

Upper zone (from time to time) experiences "gurgling" adjusting thermostat will stop

have bled, but will only last week or so, then start again, need to be bled

small (5gal?) expansion tank... could that be bad / too small?

Comments

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
    Got pictures???

    We'd love to help, but your verbal description is not enough. We can use pictures (all angles available) and drawings if you can.



    ME
    It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.
This discussion has been closed.