Water Heater Size Requirements

If you re going with a storage tank water heater here s a rough guide for storage tank capacity.

Water heater size requirements.

Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Consequently these are the two most frequently installed sizes. Pro size water heater sizing. The first permit is for the water heater itself.

5 or more people over 56 gallons add 10 gallons per additional person. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. 1 2 people you ll need a water tank with at least a 30 gallon capacity.

Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. For a tank style heater household size is a simple indicator of hot water needs. Less than 2000 ft 2000 ft to 3000 ft 3000 ft to 4000 ft 4000 ft to 5000 ft 5000 ft to 6000 ft 6000 ft to 7000 ft 7000 ft to 8000 ft 8000 ft to 9000 ft 9000 ft to 10000 ft 10000 ft to 11000 ft 11000 ft to 12000 ft. It is the sole responsibility of the system designer to select the correct products needed for the specific application.

Your space requirements after understanding your hot water needs and thinking through your priorities consider the amount of space you have available for a water heater. Pro size is the online water heater sizing software from a. Requirements of 40 ng j or 55 ppm requirements of 14 ng j or 20 ppm. The flow rate through the demand water heater would need to be at least 3 25 gallons 12 3 liters per minute.

Smith who have built a global reputation for water heating innovation and efficiency. Typically residential water heater sizes range from 40 to 100 gallon tanks. 2 3 people you ll need at least a 40 gallon capacity tank. Simply locate the appropriate water heater sizes on ecomfort using your information.

1 or 2 people 23 to 36 gallons. 2 to 4 people 36 to 46 gallons. This is as easy as heading down to the local planning or building department to ask for one. You re only looking at 20 to 100 out of pocket as opposed to several hundred dollars to call in a plumber.

Determining these priorities helps you to not only determine water heater size but also the overall type of water heater that will be best for you. 3 to 5 people 46 to 56 gallons.