Is it normal for a water heater to hiss?

One of the most common reasons for a hot water heater to make a hissing sound is because condensation is coming into contact with a hot surface. This sound will often occur after a long shower or when the dishwasher is running — any time you use a large amount of hot water — and is a fairly normal occurrence.

Should my heater hiss?

Often having too many closed vents, or having furniture blocking air flow can be the cause of a hissing sound. If the hisses become very loud, it could indicate there’s a leak somewhere in the ductwork – and that means a lot of expensively heated air is escaping where it can’t be used.

Can a hot water heater explode?

Water heater explosions are terrifying, and they can happen. Anything that causes excess pressure on your water heating system, such as a poor anode rod, or a lot of sediment buildup, can all cause your water heater to explode. A gas leak can also cause your water heater to explode because it is a tremendous fire risk.

Why is my heater hissing?

The temperature of the tank might be too high, causing pressure to build up inside. The excess pressure pushes open the temperature and pressure relief valve, producing a hissing sound. A buildup of sediment can also increase pressure in the tank, producing a hissing noise.

Why would a hot water heater make a whistling sound?

Whistling from the water heater can indicate excess pressure building within the tank and problems with the TPR valve. It can also indicate cracks in the tank and a buildup of sediment within the drain valve. If your hot water heater is whistling, you should turn off the hot water heater right away.

Why is my water heater making a high pitched noise?

A high pitched noise from your water heater can be the result of high incoming water pressure. Water heaters are designed with a temperature / pressure relief safety valve. This valve is designed to open and release water when the temperature is too high or if there is an excess build up of pressure inside the tank.

Why is my hot water heater making a sizzling sound?

Sizzling Sounds May Signal a Water Heater Tank Leak If the water heater is making a sizzling noise, this is a clear indicator of a water leak in the tank. If you notice a sizzling water heater sound or water around the base of your heater, call a professional plumbing service right away.

How common is it for a water heater to explode?

Water heater explosions are rare but when they do happen, they can be devastating. Do not wait for a catastrophe. Here are a few signs your water heater will give before going burst. The pressure relief valve is usually located at the top of heater, on the side.

How do I stop my heater from whistling?

What Can I Do To Keep My Heater From Whistling?

1. Clean the debris from the ducts. This may be causing a blocked return vent, thus creating a whistling sound.
2. Your supply vents may be blocked or shut off. Go to each room and open all the vents, even in the rooms you don’t use.
3. Keep your doors open throughout the house.