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6 Surprising Water Heater Facts Every Homeowner Should Know

At HOTCO, we know that hot water heaters are often overlooked until something goes wrong - like a sudden blast of cold in the shower! Here are some intriguing facts.

Newly installed gas tank water heater with seismic straps and expansion tank in a Roseville, CA garage - 6 Surprising Water Heater Facts Every Homeowner Should Know

Key takeaways

  • Water heating is typically the second-largest energy cost in a home.
  • Most tank water heaters last 8 to 12 years. Tankless units can last 20.
  • A working T&P relief valve is what stops a tank from becoming dangerous.

At HOTCO, we know that hot water heaters are often overlooked until something goes wrong - like a sudden blast of cold in the shower! Here are some intriguing facts about water heaters that might surprise you:

1. Energy Consumption

About a quarter of your home's energy usage goes into heating water for tasks like laundry, showers, and dishwashing. The average U.S. household uses 80-120 gallons of hot water each day!

2. The Original Water Heater

The hot water heater concept first appeared in London in 1868. It was a painter who came up with the idea of placing a gas burner under water pipes to heat water. Inspired by this, Norwegian engineer Edwin Ruud developed the first tankless water heater, which he patented after moving to Pittsburgh, Pennsylvania.

3. Water Heater Explosions

While rare, hot water heater explosions can occur. The best way to prevent them is by ensuring your heater has a temperature and pressure relief valve, which reduces the risk of overheating.

4. Lifespan of Water Heaters

Tank water heaters typically last 9-12 years, while tankless models can last over 25 years with regular maintenance. At HOTCO, we're proud to offer Bradford White water heaters with a lifetime labor warranty, a benefit that's practically unheard of!

5. Different Names Worldwide

What you call a water heater varies depending on where you are:

  • North America: "Tankless water heater" or "on-demand water heater"
  • UK: "Multipoint geyser"
  • Australia/New Zealand: "Instantaneous hot water unit"
  • Argentina: "Calefón"

6. Typical Water Usage

On average, a shower uses 10-20 gallons of water, while a bath takes up 20-30 gallons. A washing machine uses 15-25 gallons per load, and dishwashing can use around 2 gallons per minute.

Bonus Fact: Why Is Hot Water Always on the Left? When indoor plumbing first became common, cold water was on the right-hand side for easy access with the right hand. When hot water systems were later introduced, they were placed on the left to keep things consistent!

At HOTCO, we believe in educating our customers so they can make the best choices for their home. We're here for all your water heating needs - from energy-efficient installations to quick repairs, all with an unmatched commitment to quality and service!

Frequently asked questions

Can a water heater explode?
It is rare, but a failed or blocked T&P relief valve can let pressure build. That is why the valve and its discharge pipe must be installed to code.
How long does a water heater last?
About 8 to 12 years for a tank, and 15 to 20+ for a maintained tankless unit.

No hot water? We can usually fix it today.

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