The vent pipe looks like a 4in size vents out with a 90degree elbow pointing downward.
Water heater exhaust pipe making noise.
You will notice these annoying noises more if the water heater is located in the house especially in a hall closet than if it is located in a garage.
If it s a nuisance to you and your neighbors some of these methods may help.
Water heater noises like popping cracking humming sizzling hammering banging etc.
Can be minor or serious depending on which noise it is.
Methods for reducing noise from a power vent water heater.
Although keep in mind that it is normal to hear water entering the tank when hot water is being drawn.
Up high by the vent the knocking is usually from back flow nipples.
If the running water noise continues once the tank is filled you may want to call a professional plumber to investigate the situation for.
Just leave your faucets on until the water flow returns to normal.
Generally noise from the water heater are not a concern after you identify what is causing them.
Suddenly and unexpectedly the water.
As it contracts.
Never fear here are tips for quieting your water pipes no matter what is causing all that noise.
If your water heater is making noise like water is running you probably have a leak or a broken pipe.
We usually assume it s doing its job as it should and leave it alone unless it starts to makes weird and scary noises.
Pipes can vibrate and sputter or spit violently making lots of noise if there is air trapped in them.
Limiting vibration the first thing you want to do is see what kind of noise you re hearing.
Gas water heater is making loud noise like a running water inside when you open the line.
Copper pipes tend to expand as hot water passes through and transfers some of its heat to them.
Calling the hvac people to see what.
Combating water hammers imagine a fast moving stream of water traveling down a narrow pipe.
If you have air in a pipe caused by a recent repair or another issue you will have to deal with the shaking and sputtering pipes for a short time until the air is forced out.
Copper is both malleable and ductile in tight quarters copper hot water lines can expand and then noisily rub against your home s hidden structural features studs joists support brackets etc.
Four scary noises your water heater is making and what they might mean the water heater may be the most overworked and under appreciated piece of mechanical equipment in a house.