Air Pinging through pipes


  #1  
Old 10-24-04, 09:14 AM
MrMisc
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Air Pinging through pipes

Have a Gas-Fired Well-Mclain HEII boiler with 3 zones. Hot water baseboard. One zone is for downstairs, one zone is for upstairs the third zone is for my hot water holding tank. System was install in early 90's and other than ignitors, zone valves and aquastats, its been pretty reliable. That brings me to my questions:

1. I've never done any proactive maint to this system
and am wondering if any should be done?

2. There's always been alot of pinging in the pipes on the
two zones that heat the house. How much pinging is
normal? Should I bleed the system? How do I know if
I have enough water in the system? If I bleed the zones
will the water automatically re-fill? There is an air relief
valve on the top of the boiler that has a thumb screw on
it. I have it a little more than halfway open to let the air
out as water passes through it. I'm assuming the valve
is working.

Thanks!
 
  #2  
Old 11-14-04, 07:37 PM
rontram
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Pinging in baseboard heat is normal. It's usually caused by expansion and contraction. If you suspect that there is air in the system then you should bleed it. Usually when there is air in a hot water baseboard systen you will hear water sloshing through the pipes. If you do bleed the system, water should refill automatically if everything is functioning properly. If it does not, then the feed valve may be stuck due to age. Try tapping on it lightly to get it going again. Good luck.

Ron
 
 

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