Water Heaters - Gas water heater makes noise
Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.View Full Version : Gas water heater makes noise
aman_hawk
10-27-04, 04:11 PM
My Bradford White (model TTW2) water heater (gas) is making a monotonous 'tnnnnnnn' sound all the time. It is working fine, but I think the noise is new. Is this something alarming?
Thanks a lot in advance.
Aman
Thanks a lot in advance.
Aman
Mike Swearingen
10-27-04, 06:25 PM
What you're hearing is the "boiling" of rust particles and other sediment.
You just need to flush and drain the water heater by attaching a water hose to the bottom drain spigot, and letting it run until it's clear.
Good luck!
Mike
You just need to flush and drain the water heater by attaching a water hose to the bottom drain spigot, and letting it run until it's clear.
Good luck!
Mike
Sharp Advice
10-28-04, 06:04 AM
Hello: Aman
Water heaters that make the noises you are hearing is usually caused by excessive sediment deposits on the bottom of the tank. The noise is commonly referred to as "percolating."
Which means the heat transfer to the water must pass through a layer of sediment, which causes the water to actually boil close to the bottom of the tank. The boiling is the method and means used to pass the heat thru the sediment to heat the water inside the tank. This also causes a very high concentration of heat at the base of the tank.
To help resolve the problem, tank "Flushing" is required. See the posted topic at the topic of the forums list of questions. Read the tank flushing instructions and flush the tank.
Tank flushing usually but not always resolves the problem. Tanks that have not been flushed yearly may have an excessive amount of sediment which has already baked onto the bottom of the tank.
Older tanks also acquire this problem despite frequent flushing and tanks used in high sediment water supplies. If flushing does not resolve the problem, tank replacement is the only solution.
Here is that link to draining and flushing:
WATER HEATER DRAINING AND FLUSHING INFO:
http://forum.doityourself.com/showt...threadid=134483
Read the post in the link below also. Problem is about the same and the solution is likely to be the same. Worth trying.
http://forum.doityourself.com/showthread.php?t=184090
Water heaters that make the noises you are hearing is usually caused by excessive sediment deposits on the bottom of the tank. The noise is commonly referred to as "percolating."
Which means the heat transfer to the water must pass through a layer of sediment, which causes the water to actually boil close to the bottom of the tank. The boiling is the method and means used to pass the heat thru the sediment to heat the water inside the tank. This also causes a very high concentration of heat at the base of the tank.
To help resolve the problem, tank "Flushing" is required. See the posted topic at the topic of the forums list of questions. Read the tank flushing instructions and flush the tank.
Tank flushing usually but not always resolves the problem. Tanks that have not been flushed yearly may have an excessive amount of sediment which has already baked onto the bottom of the tank.
Older tanks also acquire this problem despite frequent flushing and tanks used in high sediment water supplies. If flushing does not resolve the problem, tank replacement is the only solution.
Here is that link to draining and flushing:
WATER HEATER DRAINING AND FLUSHING INFO:
http://forum.doityourself.com/showt...threadid=134483
Read the post in the link below also. Problem is about the same and the solution is likely to be the same. Worth trying.
http://forum.doityourself.com/showthread.php?t=184090