Domestic Hot Water Tank Sizing

Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements.

Domestic hot water tank sizing. Water heater expansion tanks 5 year warranty maximumacceptable dimensions volume gallons in inches shipping gallon weight model number capacity 40 psi 60 psi a b lbs pmc 2 2 1 1 27 1 03 81 4 103 16 5 pmc 5 4 4 3 05 2 19 143 4 9 pmc 10 9 21 6 55 5 25 153 8 153 4 20 tw series water heater expansion tanks 1 year warranty. Assume for this example that your business day is 12 hours long you use an average of 600 gallons per hour and your water heater produces 400 gallons per hour. Your water tank would need to be at least c 12 600 400 12 200 2 400 gallons. Domestic hot water volume.

Web tank sizing guide. Find out more by visiting our website. Select 120 140 160 f. Design of domestic service water supply systems introduction to general design of domestic service water supply systems with pressurized or gravity tanks.

Write down the capacity. When selecting the size of the hot water cylinder a simple rule of thumb is that for a typical domestic household you should allow between 35 and 45 litres for every occupant. Typical residential tank type water heaters are 30 40 or 60 gallons. Sizing your solar water heating system basically involves determining the total collector area and the storage volume you ll need to meet 90 100 of your household s hot water needs during the summer.

Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications. Select a pdf help sheet from our list of tanks below for assistance in sizing your pressure vessel. Water systems hot and cold water service systems design properties capacities sizing and more. The label on the water heater will list the capacity in gallons.

Select 40 60 80. That said a mains pressure system can use about 18 litres of water per minute at 40 degrees celsius if a decent quality shower head is used. Hot water return pipe hot water can be circulated through a return pipe if it s instantly. 10 10 000 water heater temperature.

Determine your water heater size and hot water temperature. The goal in sizing a tank is to make sure the air side is large enough so that when the desired amount of water is put in the tank the air is not compressed to a pressure greater than system design. Select 40 50 60 80 120 gallons.