Hot Water Tank FAQ’s

Frequently Asked Questions about hot water tanks

Frequently Asked Questions

  • The average life expectancy of a hot water tank is 8-10 years
  • If you notice your hot water tank is leaking you should turn off the supply valve, and then call your plumber to have it replaced.
  • The supply valve that feeds the hot water tank is located on the cold supply line. There is a stamp on the top of the tank indicating which pipe is the cold one.
  • Rinnai makes the best tankless water heater. A Rinnai tankless water heater has a long lifespan, in fact, it can last up to two times as long as a traditional water heater. When purchased from Norms plumbing and heating, you also receive a generous warranty to give you piece of mind. With this premium product, you’ll save both time and money. Rinnai is the smartest water heating investment.
  • Rinnai tankless water heaters have many benefits.

Such as:

  • A tankless water heater saves you money over time, thanks to far superior energy efficiency.
  • They have a significantly longer useful lifespan than tank water heaters, lasting almost twice as long in some cases.
  • They require significantly less storage space than a storage tank water heater.
  • You’ll have unlimited hot water whenever you need it. The hot water is available in seconds instead of the minutes it typically takes for a tank heater.
  • You will have more than enough hot water for multiple showers and appliances to run simultaneously.

You can find the age of your water heater by looking at the “rating plate” on the side of the tank. Sometimes though it is embedded in a code in the serial number. If you have any questions, feel free to call us.

The valve on the side (or top) of your water heater is the Temperature and Pressure relief valve. It is designed to relieve excess pressure or heat to protect the tank. It is vital that these valve work. Sometimes, they will expel water, if they do, its best that you call a plumber.

An expansion tank is a small cylinder that is installed on your cold water supply to the hot water tank. It is designed to absorb any expansion of water that may occur, instead of it being absorbed by your water heater. This is to protect your water heater. The way water heaters are designed now, it is common for them to be needed.


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Had an emergency situation and not only did Norm’s respond exceptionally fast (even on a Sunday) but they did the job quickly and well and went the extra mile to ensure all was as it should be. I have used them often in the past and due to the quality of both the work and the customer service, I will most certainly use them again and also recommend them to family and friends!


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