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Help, My Tankless Water Heater Shuts Off During Showers

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Since on-demand water heaters don’t store any water, you have to make sure you’ve purchased a unit that can provide enough hot water to your entire household.

If you’re suddenly losing hot water during your shower, then it’s likely your tankless water heater is being overwhelmed.

So while tankless water heaters do offer many benefits to a household, like their compact size, and energy efficiency, you do have to make sure your unit produces enough gallons per minute.


So, Are Tankless Water Heaters Better?

For most people, tankless water heaters are better. One of the biggest advantages to using a tankless water heater is saving on your energy bill. Consumer Reports estimates that people who use tankless water heaters save about $100 annually.

That may not seem like much savings at first. But, when you consider that tankless water heaters typically last twice as long as traditional hot water heaters, then you can start to see the real appeal.


Are There Any Disadvantages?

The main disadvantage is that you can easily overburden your tankless water heater by running too many appliances. Also, tankless water heaters can be more expensive initially which dissuades many buyers.

Additionally, tankless hot water heaters regularly offer a flow rate of only 2-5 gallons per minute, so they’re ideal for homes that use only 41 gallons or less of hot water per day.

It’s important to note that if you have an electric model, then the flow rate is most likely on the lower end of the spectrum compared to a gas model.


Why Is My Tankless Hot Water Heater Not Working In The Shower?

One of the most common reasons that your tankless hot water stops working in the shower is because your current unit can’t supply enough hot water per minute. If you’re attempting to do the laundry, run the dishwasher, and shower at the same time, then you’re likely straining your on-demand water system’s capabilities.

While tankless water heaters help your family save energy and money in the long-term, purchasing an underpowered unit, and then having to upgrade shortly after can be costly. It’s important to be aware of this common mistake that people make when switching to tankless water heaters.

If you’re a family that uses several hot water appliances simultaneously, you may want to consider a traditional hot water heater.

Finally, it’s important to mention that there is a minimum flow rate required to activate your tankless water heater, so faulty plumbing can also cause interruptions. Other problems to check for are loss of electric power, or gas. You can also examine your water heater to see if an error code is present.


Take Action Today

Do you need a more powerful tankless water heater? We can inspect pipes, repair, or reinstall your tankless water heater so that you can get back to taking hot showers again.

Serving the Black Hills, South Dakota and Chadron, Nebraska for over 28 years, Action Mechanical is your comprehensive source for the latest in heating, cooling, and plumbing for your home. Call us today at 605-593-5776 to speak with a member of our experienced team about tank-less water heater installation today!

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