Tankless Water Heater Recovery Rate

For tankless systems water flow rate also known as gallons per minute gpm is used to determine the system size.

Tankless water heater recovery rate.

The higher your hot water demands the higher the recovery rate you ll need for your water heater. Gas fired tankless water heaters produce higher flow rates than electric ones. 7 rheem rtgh 84xln outdoor natural gas condensing tankless water heater. It means that you can end up with a model that can deliver hot water each time you want it to do so.

For practical purposes first hour usage is unlimited. Typically tankless water heaters provide hot water at a rate of 2 5 gallons 7 6 15 2 liters per minute. Tankless or demand type water heaters are rated by the maximum temperature rise possible at a given flow rate. Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home.

It combines the heaters capacity in gallons with its recovery time. The 199 900 btu natural gas tankless water heater is designed to supply continuous hot water for up to 3 bathrooms at the same time. There are two reasons why knowing your water heater recovery times are important. Rheem performance tankless electric water heaters help reduce rheem performance tankless electric water heaters help reduce energy usage save on energy costs and provide the comfort and convenience of continuous hot water on demand.

It is the reason you always get people asking about the various flow rates before buying the water heaters. Recovery rate is the amount of hot water the water heater is capable of providing in a given period of time not to be confused with first hour rating which includes recovery rate plus 70 percent of the tank capacity see faq 8 the amount of hot water provided will depend on several things. Flow rate for a tankless water heater is measured in gallons per minute based on a given heat rise typically 25 or 50 degrees and range from 4 gallons per minute. The rheem eco200xln3 1 outdoor natural gas tankless water the rheem eco200xln3 1 outdoor natural gas tankless water heater can provide up to 9 5 gpm at a 35 temperature rise.

You need to know the recovery rate to determine if a new unit can meet the hot water requirements of your family. Our whole home models are a perfect match for installations in small spaces and no venting is required. So a 60 gallon water heater should have a recovery rate of at least 60 gallons. Having a higher flow rate is often the best thing.

Sometimes however even the largest gas fired model cannot supply enough hot water for simultaneous multiple uses in large households.