Water Heater Btu Chart

Move 1 gallon per minute then you need 8 34 btu s per gallon per minute.

Water heater btu chart. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Heater efficiency is the ratio of output to input typically displayed as a percentage. A btu is a relatively small amount of energy. When you go to buy a heater you will see that the btus are listed as a guideline for the heating capacity and are usually broken down into different levels.

Weighed water test measure the flow of water through your process by. The heater output or btu is the energy that the heater will transfer to the pool water. About equivalent to the heat generated by striking 1 stick match. Also the calculator is only correct in the theoretical case that while the water is being heated no heat escapes from the water to the environment air or walls etc.

Just water heaters encourages you to compare the cost of your water heater download the chart. Say you calculate the pump pressure at 5 4 feet of head. If 1 btu is required to raise a pound of water 1 degree fahrenheit and water weighs approximately 8 34 lbs gallon then you need 8 43 btu s per degree of temperature rise per gallon. Simply locate the appropriate water heater sizes on ecomfort using your information.

Some common btu calculating formulas are shown below. You can calculate btu heating or cooling requirements for your process by understanding your application. A btu is an abbreviation for b ritish t hermal u nit which is the amount of energy required to raise 1 pound of water 1 degree fahrenheit at sea level. Calculate system delivered btu to find the system delivered btu multiply the btu multiplier of 500 x the estimated pump gpm x the system temperature change.

Most heater sizing charts assume a 24 hour heat up time. British thermal units or btus are a measurement of the energy required to raise the temperature of one pound of water by one degree. For tankless water heaters the key criterion is hot water flow rate. For an electrical heater that can be a good assumption but not for a gas heater.

The heater input is the energy still in btu s that is used to generate the output heat. Please remember that the calculators above assume 100 conversion efficiency. Skip to content call us today. Subtract the supply water temperature from the return water temperature to find the system temperature change.

That is a water heater in the north either tank or tankless will need a higher btu input in the winter than the summer to heat and deliver water to a given temperature.