Tankless Electric Water Heater Sizing Calculator

This guide will teach you how to size a tankless water heater and includes a calculator at the end.

Tankless electric water heater sizing calculator.

Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. If you want to upgrade your water heater size from 40 or 50 gallons storage water heater or replace it you won t necessarily need a big tankless water heater. The right size is a tankless water heater that can heat enough gallons of water to a specific temperature per minute to keep up with the demand. Rinnai strongly suggests that you only purchase our products from rinnai independent dealers and that you have the products installed only by licensed professionals who have attended a rinnai installation training class licensed professionals who have attended a rinnai installation training class.

Just follow the three simple steps below to choose the right model and size you need. Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. Tankless water heaters are intended to heat potable drinking water only and the inlet water to a tankless unit should not be pre heated. After that view our sizing guide pdfs which offer further guidance on choosing an appropriate tankless model for your application.

Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need. Now you need to understand what temperature rise means. We re here to help you. Choose the right tankless electric water heater for you.

There are two factors that need to be considered when sizing a tankless water heater. Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need. Use our handy calculator to determine your needed flow rate and temperature rise then find models that match your needs. Flow rate and temperature rise where are you located.

Most demand water heaters are rated for a variety of inlet temperatures. Gas tankless water heaters are able to produce a larger temperature rise per gpm than electric models. Tankless water heater sizing calculator. We already covered gpm.

To work properly a tankless water heater needs to be just the right size to meet your home s hot water demand.