Water Heater Replacement: From Tank to Tankless Full Guide

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Which Tankless Water Heater to Replace Your Tank Water Heater - Cornel's Plumbing, Heating & Air Conditioning
Are you tired of running out of hot water in the middle of a shower or waiting for your tank water heater to refill? It may be time to consider switching to a tankless water heater. Not only can a tankless water heater provide an endless supply of hot water, but it can also save you money on your energy bills. But what size tankless water heater do you need to replace your old tank water heater? In this article, we’ll explore what you need to know about going from a tank to a tankless water heater and the different sizes you should consider.

What You Need to Know About Going From a Tank to Tankless Water Heater

Before we dive into what size tankless water heater you need, let’s discuss what you need to know about making the switch from a tank to a tankless water heater. One of the most significant differences between the two is the size. Tankless water heaters are much smaller and can be installed in various locations, such as under a sink or in a closet. Additionally, tankless water heaters don’t store hot water, meaning you won’t run out of hot water during a shower or bath. Another factor to consider is the installation process. Tankless water heaters require a different installation process than tank water heaters, so it’s important to hire a professional plumber to ensure the job is done correctly.

What Size Tankless Water Heater to Replace 50 Gallon

If you’re currently using a 50-gallon tank water heater and want to switch to a tankless system, you’ll need a unit with a flow rate of at least 5 gallons per minute (GPM). A unit with a flow rate of 5 GPM can provide enough hot water for one shower and one sink at the same time. However, if you have a larger family or frequently use multiple hot water sources simultaneously, you may want to consider a unit with a higher flow rate.

What Size Tankless Water Heater to Replace 40 Gallon

If you currently have a 40-gallon tank water heater, you can replace it with a tankless unit with a flow rate of 4 GPM. A 4 GPM unit can provide enough hot water for one shower and one sink at the same time. However, if you have a larger family or frequently use multiple hot water sources simultaneously, you may want to consider a unit with a higher flow rate.

What Size Tankless Water Heater to Replace 75 Gallon

If you’re currently using a 75-gallon tank water heater and want to switch to a tankless system, you’ll need a unit with a flow rate of at least 7.5 gallons per minute (GPM). A unit with a flow rate of 7.5 GPM can provide enough hot water for two showers and one sink at the same time. However, if you have a larger family or frequently use multiple hot water sources simultaneously, you may want to consider a unit with a higher flow rate.

Water Heater Replacement: From Tank to Tankless Full Guide

Switching from a tank water heater to a tankless water heater can provide you with a reliable supply of hot water while also saving you money on your energy bills. When choosing a tankless water heater, it’s important to consider the size of your current tank water heater and the number of hot water sources you’ll be using simultaneously. Additionally, be sure to contact Cornel’s Plumbing Heating & Air Conditioning to ensure that your new tankless water heater is installed correctly. By following these tips, you can choose the right size tankless water heater for your needs and enjoy a constant supply of hot water for years to come. Check out our Google Reviews!

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  • Avatar Michelle ★★★★★ 2 months ago
    We just had our water heater replaced by Cornels Plumbing. Jake provided outstanding service! He was super helpful during the quote process and patiently … view more answered all our questions. Water heaters are a big expense, but we felt confident with his recommended solution and appreciated there was no high pressure sales pitch. We were so impressed with his professionalism and expertise, we specifically requested him to install the unit. Thank you, Jake!
  • Avatar Joseph Leebowo ★★★★★ 6 months ago
    Jake is amazing! He replaced both of my water heaters, and the entire experience exceeded my expectations from start to finish. Not only was the quality … view more of his work top-notch, but the way he carried himself throughout the process really stood out. Jake is incredibly knowledgeable and he clearly knows his trade inside and out. He took the time to explain what he was doing, why it mattered, and what I should know going forward to keep everything running smoothly.What impressed me just as much as his expertise was his kindness and willingness to help. He patiently answered every question I had (and I had a lot!), never once making me feel rushed. Instead, he went above and beyond to share helpful insights and recommendations that I would never have thought of on my own. It’s rare to find someone who is not only excellent at their craft but also genuinely cares about making sure the customer feels confident and supported.Jake is the type of professional who brings both skill and heart into his work, and that combination makes all the difference. Thanks to him, I now have peace of mind knowing my home’s hot water is in great shape. If you’re looking for someone who is reliable, trustworthy, and truly committed to doing the job right while treating you with kindness and respect, Jake is absolutely the person you want to call.

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