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Tankless Water Heaters: Benefits, Costs, and Common Questions Answered

April 16, 2024
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Written By
Robert Estrada
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What is the downside of a tankless water heater?

Tankless water heaters, while offering continuous hot water and energy efficiency, come with their challenges. Initial installation costs can be high due to electrical upgrades and venting requirements. They also require regular maintenance to prevent scale buildup, which can affect performance and longevity.

Is it worth switching to a tankless water heater?

Switching to a tankless water heater can be worth it if you value long-term savings and endless hot water supply. They are more energy-efficient than traditional tank heaters, as they only heat water on demand, potentially reducing your energy bills significantly.

What is the most common issue with tankless water heaters?

The most common issues with tankless water heaters include mineral buildup, system overload when too many taps are used simultaneously, and ignition failure. Regular maintenance is essential to address these issues effectively.

What size tankless water heater do I need for a family of 4?

For a family of 4, a tankless water heater with a flow rate of around 8-10 gallons per minute (GPM) is typically adequate. This ensures that it can handle multiple showers and appliances running at the same time without running out of hot water.

Can you run out of hot water with a tankless water heater?

Unlike traditional tank heaters, tankless models don't store hot water that can run out, but they have a maximum flow rate. If demand exceeds this rate, such as multiple showers and appliances running simultaneously, the water temperature may decrease.

How many years does a tankless water heater last?

A well-maintained tankless water heater can last up to 20 years, significantly longer than traditional tank heaters. Regular descaling and annual maintenance are crucial for maximizing lifespan.

How much does it cost to convert a water heater to tankless?

Converting to a tankless water heater typically costs between $3,000 and $4,500, including installation. This cost can vary based on the need for additional piping or electrical upgrades.

Do tankless water heaters increase electric bill?

While tankless water heaters are generally more energy-efficient, the impact on your electric bill depends on your usage. If you use a lot of hot water, you might see your bills increase, although generally less than with a traditional tank heater.

Why does my tankless water heater go cold during a shower?

This could be due to a phenomenon called a "cold water sandwich," which happens when the heated water is briefly interrupted by cold water entering the heater. This is more common in older models or units with slower response times.

How often should a tankless water heater be flushed?

Flushing a tankless water heater annually is recommended to remove mineral deposits that can build up and impair the system's efficiency.

Can you use vinegar to clean a tankless water heater?

Yes, vinegar is an effective and safe cleaning agent for descaling tankless water heaters. It helps remove mineral deposits without the harshness of chemical products.

What are the pros and cons of a tankless water heater?

Pros:

  • Energy efficiency
  • Continuous hot water supply
  • Space-saving design
  • Longer lifespan

Cons:

  • Higher initial costs
  • Possible inconsistent water temperatures
  • Requires regular maintenance

Which is better, gas or electric tankless water heater?

Gas tankless water heaters generally offer higher flow rates and are more suitable for larger households. They are also more cost-effective in the long run if natural gas is cheaper than electricity in your area. Electric models are easier to install and maintain but might not be suitable for high-demand homes.

For more information on whether a tankless water heater is right for your home in Pearland, TX, or to schedule an installation or service, contact Red One Plumbing at (832) 281-4022. Our expert team is here to provide you with efficient solutions and detailed information to help you make the best decision for your home's hot water needs.

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Roberto with Red One plumbing was fantastic! He was very personable and professional. You can tell he really knew his job well and he takes great pride in the quality of his work. He hooked up our standby generator and was very informative on the whole process. He made sure we knew what to expect and what each step entailed. If I need a plumber again in the future, he will be my go to guy. Highly recommended.

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