Tankless Vs Tank Water Heater Calculator

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.

Tankless vs tank water heater calculator.

Sizing storage and heat pump with tank water heaters. Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. Gas fired tankless water heaters produce higher flow rates than electric ones. Typically tankless water heaters provide hot water at a rate of 2 5 gallons 7 6 15 2 liters per minute.

However a tankless water heater s output limits the flow rate. If you use lots of hot water daily around 86 gallons you might enjoy energy efficiency of an additional 8 to 14 percent. Choose the right tankless electric water heater for you. Tankless water heaters heat water directly without the use of a storage tank.

Either a gas burner or an electric element heats the water. Tankless water heater sizing calculator. 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. Tankless heaters cost slightly more up front but can save you substantially on your monthly bills.

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. Now you need to understand what temperature rise means. Flow rate and temperature rise where are you located. 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.

Tank heaters cost less up front but are expensive to run and wear out sooner. Tankless water heater sizing calculatoruse our sizing calculator to determine your. 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. 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.

We already covered gpm. 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. Just follow the three simple steps below to choose the right model and size you need.