Do I need two hot water heaters?

What is the difference between a standard tank hot water heater and a tankless hot water heater anyway? And why might I want to consider a dual hot water heater set up in my home?

Tank hot water heaters vs. tankless hot water heaters

  • Tank-style water heaters keep around 40–80 gallons (depending on size of tank) of water hot and ready for use at all times.  This means it’s heating the water all day, everyday waiting on you to use the hot water. While it allows you to use all this water at one time, say by running washing machine, taking a shower, and starting the dishwasher all at one time.  When the tank is depleted though, you have to wait for it to replenish, which can take an hour or more to replenish the supply.
  • Tankless hot water heaters begin heating the water supply when you turn on the hot water at a faucet or appliance where you need hot water supply. An tankless hot water heater, or “on- demand” unit won’t run out of hot water like a tank style hot water heater, but it can’t supply more than 1-2 appliances at one time. Tankless water heaters are more energy efficient as they are only heating water when it’s needed, not all the time.

Why should I consider two hot water heaters?

If you are looking to save energy, replace an older or broken tank style water heater, or your water usage needs have changed, considering a two hot water heater set up could be a great solution for your hot water needs.

To help you decide how many water heaters your home needs, we suggest that you have a licensed Indianapolis plumber take a look and verify your options, but first you can consider these main factors:

  • Peak demand.  How much water your tank holds currently and how long it takes for your water to run cold when all your water sources are running.
  • Home size. If your home is relatively small and most of your hot water is used at varying times throughout the day, a single tankless water heater may meet all your needs.  Larger homes with many family members and several bathrooms may be a great candidate for a two unit on-demand hot water heater system.

Big Frog Plumbing can help you decide what your hot water needs are currently and provide the most economical options to also meet your needs in the future.  Give us a call if you want our plumbers to take a look. 317-296-7878

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