What size tankless water heater do I need?

There are many factors that impact the size of tankless water heater you should choose, including how many people are in your home or office and how many facilities (bathrooms, washrooms, laundry rooms or kitchens) the unit will service. To simplify the process, we have a handy three-step formula for choosing what capacity of Rinnai tankless water heater will work best for your needs.

Step 1: Identify your required flow rate in gallons per minute (GPM)
Step 2: Identify the groundwater temperature in your region or state
Step 3: Calculate your required minimum temperature rise

For help with identifying the perfect tankless water heater contact a licensed and trained professional to guide you from the beginning, click here to find one in your area.

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