Why is your heating system making noise?
Most heating systems make some noise and this is normal, I personally like the fact that my system makes some noise, this way I know it's working and don't have to wait till it is freezing before I realize there is a problem.
Different types of heating systems make different noises. A steam system may make some of the same noises a hot water system will make, but both systems have unique sounds as well.
Hot water base board. if installed poorly or if the fins on the elements are damaged, will make all kinds of noise, from pinging (this is caused by the fins of the elements) to a rubbing sound to a knocking sound or a tapping sound. and there is also an echoing sound that happens at random periods of time, noticeable mostly at night when you are trying to sleep.
The pinging in baseboard heat is the metal
fins on the element inside the baseboard covers. If the fins are bent or
pushed together they will make noise when the heat comes on, because the
copper pipe the fins are attached to expand when they get hot causing the
fins to rub against each other, other causes for the pinging in the
baseboard are, there is a guide that goes between the fins and where the
element rests on the baseboard track, if this guide is not there the fins
will make noise because they are rubbing against the baseboard track
How to fix this problem, remove all the
covers and straighten out the fins, place something like wax paper between
any places the fins are touching other parts of the baseboard, The pipes
never get hot enough to cause a fire.
Copper pipe expands allot when heated, I think it's 1 full
inch for 100 feet of pipe, it is the expansion of the pipe that causes all
the noise. This is why, most inexperienced plumbers don't make preparations
for the expansion and also don't sleeve the pipe properly, other big
mistakes are, when drilling holes to run the copper pipe from one baseboard
to another, the holes don't line up perfectly and the pipe is forced in
causing the pipe to be pushed tightly against the floor joists. No
insulators installed, this causes the pipe to rub against the floor joists
even if there in no pressure from being pinched, Strapping the heat pipes
tight against the bottom of the floor joists will cause noise because the
pipe will move no matter how tight it is.
Banging noises found at the boiler are 1 big bang followed by a number of
less load bangs, like an echo. This noise is caused by a combination of
air in the system, a possibly defective
expansion tank and a fast closing zone valve.
It's important to note: it may not have anything to do with the
expansion tank, I say this because so
many people have the expansion tank replaced and find they still have the
problem. This is what is causing the banging noise, One of the zone valves
closes while the circulator is still running, the fast closing zone valve
slams bouncing pressure against the expansion tank or air in the system, the
pressure bounces back pushing the zone valve open a little and it repeats
this a few times causing the echo banging sound. The most common fast
opening and fast closing zone valves are Honeywell, Erie, The small White
Rogers, Slow opening and slow closing zone valves are the
Taco and the large White Rogers zone valves.
I prefer the Taco zone valves over all the rest, except for use on any
indirect water heater, Taco zone valves open too slow for indirect water
heaters. It is not best to use zone valves on indirect water heaters,
because zone valves can get stuck open causing the indirect water heater to
be over stressed and can void the warranty, A separate circulator is
Sounds like someone is hitting the pipes with a hammer. On a hot water boiler, this sound can be very dangerous, check the temperature gauge if it is above 220 degrees F. shut the boiler down and call a heating Professional ASAP.
It sounds like I am sleeping by a stony brook or you can here the water flowing through the heat pipes. This is simple you have air in your system.
How to solve this problem, remove the air
from your heating system
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