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eF Series® High Efficiency Water Heater | Efficiency Calculator
 

eF Series® High Efficiency Water Heater Bradford White's eF Series® Efficiency Calculator makes it easy to see the savings!

Input your specifications below.


Calculation Specifications
Number of water heaters installed:

Cost per Therm ($):

Nominal Hours of Operation Per Day:

Days of Operation Per Year:

   
eF Series® Savings

Hours Per Day Less Run Time: 1.50 [Hours of Operation - EF Hours of Operation Per Day]

Therms Per Day Savings: $3.01 [Conv. Fuel Consumed (Day) - EF Fuel Consumed (Day)]

Therms Per Year Savings: $1,096.85 [Conv. Fuel Consumed (Yr) - EF Fuel Consumed (Yr)]

Cost Per Day Savings: $3.28 [Conv. Fuel Cost (Day) - EF Fuel Cost (Day)]

Annual Cost Savings: $1,195.56 [Conv. Fuel Cost (Yr) - EF Fuel Cost (Yr)]
Conventional Water Heater
Total Input (Btu/hr):
Water Heater Efficiency (%):


Nominal Hours of Operation Per Day: 8



Energy Consumed (Btu/Day): 1,599,992
Number of Units X Hours of Operation X BTU/hr

Energy Consumed (Btu/Year): 583,997,080
Energy Consumed (Btu/Day) X Days of Operation

Fuel Consumed (Therms/Day): 16.00
Energy Consumed (Btu/Day)/ 100000

Fuel Consumed (Therms/Year): 5,839.97
Energy Consumed (Btu/Year)/ 100000

Fuel Cost ($/Day): $17.44
Fuel Consumed (Therms/Day) X Cost per Therm ($)

Fuel Cost ($/Year): $6,365.57
Fuel Consumed (Therms/Year) X Cost per Therm ($)
eF Series® Water Heater
Total Input (Btu/hr):
Water Heater Efficiency (%):


Adjusted eF Hours of Operation Per Day: 6.50
(Hours of Operation) X (Conv. Water Heater Efficiency)
(EF series Water Heater Efficiency)

Energy Consumed (Btu/Day): 1,299,486
Number of Units X Hours of Operation X BTU/hr

Energy Consumed (Btu/Year): 474,312,349
Energy Consumed (Btu/Day) X Days of Operation

Fuel Consumed (Therms/Day): $12.99
Energy Consumed (Btu/Day)/ 100000

Fuel Consumed (Therms/Year): 4,743.12
Energy Consumed (Btu/Year)/ 100000

Fuel Cost ($/Day): $14.16
Fuel Consumed (Therms/Day) X Cost per Therm ($)

Fuel Cost ($/Year): $5,170.00
Fuel Consumed (Therms/Year) X Cost per Therm ($)
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