Tankless Water Heater Size Do Need

It is probably the most important question when wondering how to choose a tankless water heater.

Tankless water heater size do need.

So you ll need a tankless water heater that can produce at least a 60 degree rise in temperature at 5 2 gallons per minute. The average tankless unit is around 27 inches tall 18 inches wide 10 inches deep and rectangular. Before that can be answered it takes a change of mindset. Meanwhile electric heaters can heat just 2 liters of water to 70 degrees fahrenheit at the same time.

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. To give you an idea of how tankless and tank style water heaters compare in terms of size the average 40 to 50 gallon tank style heater is 54 to 60 inches tall with a 20 inch diameter and is shaped like a cylinder. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. For example a 50 gallon tank water heater can be as much as six feet high and 22 inches in diameter.

Like a hot water tank for 5 people will require at least a 60 gallon tank. You ll need to be able to heat at least 5 2 gallons of water. There are many factors that impact the size of tankless water heater you should choose including how many people are in your home or office and how many facilities bathrooms washrooms laundry rooms or kitchens the unit will service. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.

Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired. Generally gas heaters in a gas tank can heat up to 5 liters of water up to 70 degrees fahrenheit in one minute. To simplify the process we have a handy three step formula for choosing what capacity of rinnai tankless water heater will work best for your needs. Now that this family can answer the question what size electric tankless water heater do i need they just need to pick a good tankless water heater.

People are used to thinking in terms of capacity. 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. But a tankless option with comparable output for instance the takagi tankless natural gas. Besides size another factor determines the performance of a waterproof heater with no size.