hot water boiler knocking sound

My hot water pipes and gas boiler make a loud knocking sound

Nov 02, 2011 · Noise in hot water heating pipes - clicks and slooshing (air in pump) - cause may be position of pump/vent to expansion tank/boiler and clicks could be thermal expansion although have lifted bedroom f

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Troubleshooting a Noisy Water Heater - HomeReference

Pinging, banging, and knocking sounds are most commonly caused by sediment buildup. As water is heated, solids such as calcium separate and sink to the bottom of the tank. This sediment causes extra heat zones and lowers the efficiency of your heater.

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My gas boiler is making a lot of noise when it is working

Nov 25, 2010 · the problem is called kettling: With regards to kettling, banging or popping noises in the central heating boiler, this is usually caused by either lime scale and corrosion debris becoming baked onto the inside surfaces of the heat exchanger, leading to localised boiling (due to hot-spots).

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Noisy Boilers in a Home Heating System - SF Gate

The action of the bubbles, which dissipate violently when they reach cooler water higher in the tank, produces a knocking or banging noise in the boiler; this condition is often referred to as

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Why is My Water Heater Making a Thumping Noise - My

Is your water heater making a thumping noise? Its not a thief in the night, or a solicitor knocking at your door its your trusty water heater. You might have dealt with a variety of other water heater problems before, like no hot water, inconsistent hot and cold water, or a leaky water heater.

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Why Does My Water Heater Make a Knocking Noise? [Updated

Over time, sediment will build up on the bottom of your water heater tank. When this happens, the high temperatures of the water heater cause the sediment to harden and trap pockets of water. Under high temperatures, the moisture turns into steam and bursts through the layer of sediment to create that knocking noise from your water heater.

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Knocking sound from gas water heater vent - Forum - Bob Vila

I have purchased a new home and every time the hot water kicks on, I get knocking coming from the flue/ chimney of the hot water heater. My builder is telling me that it is a natural occurance

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My hot water pipes and gas boiler make a loud knocking sound

Nov 02, 2011 · My hot water pipes and gas boiler make a loud knocking sound (like a gun shot) when the boiler fires up for both hot water (with no heating) and also the central heating. I've put noise reducer in the expansion tank but this has not cured it. I've bled the radiators but still no luck. Is there anything else I can try?

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Making Your Noisy Water Heater Quiet Again: 7 Common Causes

Knock or Hammer Sound. A noisy water heater can make an especially annoying sound. When water is abruptly shut off you might hear a knock or a hammer sound. This is called water hammer. When the water flow was abruptly stopped, there's no place for the water to go. So it flows in reverse back to its original source, in this case, your water heater.

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Hot water noise, tapping / knocking | DIYnot Forums

Since the beginning of this week the hot water coming on at 5am has made a repeated knocking / tapping sound, starts fairly slow, gets faster, then slows and stops. Sounds to me like pipe expansion against joists or something in the floor. Knocking noise probably lasts 15 seconds in total. However, it doesn't stop when up to temperature.

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Whats That Knocking Sound Coming from the Water Heater?

A water heater can occasionally make a knocking or popping noise that falls somewhere between these two extremes. We dont think any noise from your water heater (or other home system) should be ignored. A knocking noise, especially, can indicate problems that can accelerate the longer you let them go on.

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I have a peerless WB-3 hot water boiler and as it heats up it

Oct 14, 2012 · I have a peerless WB-3 hot water boiler and as it heats up it makes a knocking sound and again when it is cooling down - Answered by a verified HVAC Technician

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Why Is My Water Heater Making a Knocking/Rumbling Noise?

Why Is My Water Heater Making a Knocking/Rumbling Noise? Does your water heater make a knocking/rumbling noise that could wake the dead? If so, your water heater tank has most likely collected a thick layer of sediment (minerals like calcium and lime).

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Water Heater Noise: How to Banish Knocking Sound | Vertex

Chances are very good that if your water heater is making a noise, it is because the tank is full of sediment. When the water in your water heater heats up, it bubbles, bumping the mass of sediment around the tank which causes the sound.

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How Do I Stop My Pipes from Knocking?

That pressure is important because it keeps the water moving freely between pipes and into your faucets. However, when the air used in pressurizing those pipes leaks or is depleted, water moves suddenly and violently, creating the knocking sound as it traverses the length of the supply lines.

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