What Size Water Heater Do I Need

When purchasing a water heater you need to think long term.

What size water heater do i need. 2 3 people you ll need at least a 40 gallon capacity tank. Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home. 1 2 people you ll need a water tank with at least a 30 gallon capacity. For 1 to 2 people.

Keep in mind though that a water heater lasts an average of 10 years and your needs may change over time. 30 40 gallons for 2 to 3 people. Residential water heaters can range in size from 30 to 100 gallons but the most common sizes for the average home are 40 to 50 gallon tanks. Before determining what size water heater your home will need it s good to know what sizes water heaters come in.

The most common water heater capacities are 40 and 60 gallons 180 and 270 litres respectively. Then add up their flow rates gallons per minute. Add up all of the hot water you ll be using simultaneously. Average usage rates for each would be.

First list the number of hot water devices you expect to use at any one time. Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. Say you want to jump in the shower and you need to run the dishwasher at the same time. What sizes do water heaters come in.

What size water heater do i need. But if you only need a loose estimate of what size you need versus an exact calculation follow these guidelines. Typically residential water heater sizes range from 40 to 100 gallon tanks. They also come in 20 80 and even 100 gallon sizes.

Well to get an accurate answer you d have to calculate out how much hot water you typically use during your busiest hot water using hour.