Water Heater Recovery Rate Definition

The official definition of the recovery time or recovery rate for your water heater is the amount of hot water that your water heater can provide in one hour once it has been completely drained.

Water heater recovery rate definition.

The recovery efficiency of this water heater is 96. Input provides hot water at the hourly recovery rate hour after hour. Here s the official definition. Wattage of the heating elements burner size efficiency temperature rise required and the time frame used to measure the recovery rate.

Rr recovery rate gal h p electrical power supplied by heater kw temperature rise. Dt h in μ q ρ. Having enough storage tank capacity is. The recovery rate is the amount of hot water the water heater is capable of producing in a given period of time.

Beginning with a full tank of hot water a heater with a storage tank can deliver in one hour roughly. More important than capacity is the recovery rate which is the number of gallons of water the heater can raise in temperature by a certain number of degrees fahrenheit in one hour. A water heater s recovery time also called recovery rate is the amount of hot water in gallons a tank water heater can provide in just one hour after being completely drained. Water heater soft water system filtration system interior improvements built in appliances kitchen modernization flooring for property with a 5 year recovery period the straight line rate is 20 1 divided by 5 for the first tax year.

Recovery rate for an electrical heater in a domestic hot water system. Recovery rate basically gives you an idea of how fast a water heater can heat water. The storage tank represents instant hot water at greater than heater recovery. The sum of the amount of hot water drawn during the test is the first hour rating.

Temperature rise in an electrical heater in a domestic hot water system. The water heater is then allowed to recover and the process continues repeatedly until one hour elapses. This water heater is tested by ahri as a commercial water heater because of it s input btu rating. That is why they did not and will not issue the water heater an energy factory.

Usually 100 f is used but sometimes 60 f. Rr h in μ dt ρ p 3413 btu kw dt ρ 3 where. Electric 1 0900 cost per therm. 0 1200 cost per kwh.

The supply of hot water in the storage tank cannot be replenished until the peak usage period has ended and heater recovery is available for this purpose. Because of this the heat loss of the insulation is measured in btu hr. The recovery rate is measured in gallons and basically provides an idea of the speed of your water heater in providing hot water.