mathfogie
New Member
I have strange noises in one part of my heating system.
It is forced hot water, Peerless boiler, Beckett burner, installed about 1990,
replacing a builder's special.
In 2012, I had a contractor split the first floor zone into two zones.
The original layout had several baseboard radiators on interior walls as well
as the the usual exterior walls. The result is a mixture of copper and
plastic pipes in the basement.
The water district replaced the meter about a week before the noise started.
There are gate valves on both sides of the meter.
The noise is in only one zone but it has several sounds.
One sound is a gurgle, something like a brook running rapidly over stones.
Perhaps it is like a lot of air in the line, but I can't imagine how it got there.
I searched for signs of a leak and did not find any.
The valve that could shut off the automatic refill is open.
The second sound seems like it could be something rotating,
perhaps a bearing failing in a motor or pump.
If so, that would be one of the units installed in 2012.
The third sound is like metal being dragged across another piece of metal..
All of the sounds seem to come from near the radiator that is closest to the boiler,
on the source or hot side, furthest from the pump on the return side.
One or more of the sounds, usually all of them, happen most of the time when the
thermostat calls for heat, but not all of the time.
Usually the noise stops before the burner turns off.
Ideas about cause and cure are needed. Thanks.
It is forced hot water, Peerless boiler, Beckett burner, installed about 1990,
replacing a builder's special.
In 2012, I had a contractor split the first floor zone into two zones.
The original layout had several baseboard radiators on interior walls as well
as the the usual exterior walls. The result is a mixture of copper and
plastic pipes in the basement.
The water district replaced the meter about a week before the noise started.
There are gate valves on both sides of the meter.
The noise is in only one zone but it has several sounds.
One sound is a gurgle, something like a brook running rapidly over stones.
Perhaps it is like a lot of air in the line, but I can't imagine how it got there.
I searched for signs of a leak and did not find any.
The valve that could shut off the automatic refill is open.
The second sound seems like it could be something rotating,
perhaps a bearing failing in a motor or pump.
If so, that would be one of the units installed in 2012.
The third sound is like metal being dragged across another piece of metal..
All of the sounds seem to come from near the radiator that is closest to the boiler,
on the source or hot side, furthest from the pump on the return side.
One or more of the sounds, usually all of them, happen most of the time when the
thermostat calls for heat, but not all of the time.
Usually the noise stops before the burner turns off.
Ideas about cause and cure are needed. Thanks.