Tankless Vs Tank Water Heater Calculator

Tankless water heater sizing calculatoruse our sizing calculator to determine your.

Tankless vs tank water heater calculator.

Typically tankless water heaters provide hot water at a rate of 2 5 gallons 7 6 15 2 liters per minute. Choose the right tankless electric water heater for you. The first hour rating is the number of gallons of hot water the heater can supply per hour starting with a tank full of hot water. Now you need to understand what temperature rise means.

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. It uses high powered burners to rapidly heat water as it runs through a heat exchanger and deliver it directly to your faucets or shower without storing it in a tank. Either a gas burner or an electric element heats the water. Northern region central region southern region.

We already covered gpm. You don t need to wait for a storage tank to fill up with enough hot water. Tankless water heaters heat water directly without the use of a storage tank. Gas fired tankless water heaters produce higher flow rates than electric ones.

Flow rate and temperature rise where are you located. Tank heaters cost less up front but are expensive to run and wear out sooner. Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. Tankless water heaters by erika rawes and michael bizzaco september 3 2020 a new water heater is a significant investment and it s important to research different products to find a.

Homeowners with on demand tankless water heaters that use less than 41 gallons or less of hot water each day enjoy between 24 and 34 percent more energy efficiency than storage tank water heaters. To properly size a storage water heater for your home including a heat pump water heater with a tank use the water heater s first hour rating. If you use lots of hot water daily around 86 gallons you might enjoy energy efficiency of an additional 8 to 14 percent. Sizing storage and heat pump with tank water heaters.

Tankless heaters cost slightly more up front but can save you substantially on your monthly bills. Comparing a standard tank heater 50 gallon electric with an equivalent tankless condensed gas fired unit the tankless unit can reduce energy costs by 60 or more. While tankless water heaters run more efficiently than storage tank water heaters replacing a tank water heater with a tankless can be expensive and the payback time can be longer than the warranty.