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choose the right tankless electric water heater for you. Rheem ® Tankless Electric Water Heaters make it easy to enjoy instantaneous, continuous hot water, space-saving design, and significant energy cost savings. Just follow the three simple steps below to choose the right model and size you need.
Once you decide to purchase a tankless water heater, the next thing you need to determine is what size tankless water heater you need. This handy sizing calculator will help you find the right size tankless for your home. Simply answer the questions and it'll do the math for you!
Discover the perfect tankless water heater for your needs with our user-friendly calculator - find the ideal size and model today!
What size tankless water heater do I need? How many GPM tankless water heater do I need for the gas unit and how many kW for the electric unit? Here’s the deal: To properly answer what size tankless water heater do you need, you have to figure out two things beforehand: What are your maximum hot water needs?
Sizing your water heater correctly ensures that you have enough hot water when you need it, without wasting energy on unnecessary heating. In this guide, we will walk you through the important factors to consider when sizing an electric tankless water heater for your home.
Updated October 16, 2023. The right tankless water heater can produce more hot water using less energy than most tank heaters, saving energy, space and money. This buying guide walks you through the features of these units and shows you how to choose a tankless water heater that’s right for your household. Table of Contents.
Once you have your total flow rate and the required temperature rise, you can find the right-size tankless water heater for your home. Use the table below to navigate to the tankless water heaters that meet your GPM needs.
The chart below shows the range of water usage range and average water temperatures for various fixtures. We suggest using 2.5 gpm for a shower and 1.0 gpm for a bathroom as a reference point in determining your total simultaneous water needs.
Recirculation pump ready kit ready. For use outdoors with freeze protection up to -30 degrees. Check Price Now. Tankless Water Heater Sizing Calculator.
Sizing Tankless or Demand-Type Water Heaters. Tankless or demand-type water heaters are rated by the maximum temperature rise possible at a given flow rate.