Tankless Vs Tank Water Heater Calculator

You don t need to wait for a storage tank to fill up with enough hot water.

Tankless vs tank water heater calculator.

Tankless water heaters heat water directly without the use of a storage tank. 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. Typically tankless water heaters provide hot water at a rate of 2 5 gallons 7 6 15 2 liters per minute. We already covered gpm.

Choose the right tankless electric water heater for you. 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. 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. 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.

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. Gas fired tankless water heaters produce higher flow rates than electric ones. Flow rate and temperature rise where are you located. Northern region central region southern region.

Tankless water heater sizing calculatoruse our sizing calculator to determine your. However a tankless water heater s output limits the flow rate. 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. 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.

Tankless water heater sizing calculator. Just follow the three simple steps below to choose the right model and size you need. 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. Tankless heaters cost slightly more up front but can save you substantially on your monthly bills.

Either a gas burner or an electric element heats the water. Now you need to understand what temperature rise means. If you use lots of hot water daily around 86 gallons you might enjoy energy efficiency of an additional 8 to 14 percent.