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Pool Energy Use Calculator                            Feedback

Introduction

Heat transfer from both indoor and outdoor pools occurs primarily through evaporative loss. For an outdoor pool, there are also losses and gains due to radiation to the sky, convection and solar gains. For indoor pools, heat loss is almost entirely due to evaporative losses. Energy is also required to heat refill water.

The "Pool Energy Use Calculator" can be used to optimize energy use and estimate how much can be saved by modifying setpoints, cover use, and heating schedules from the base case.

Note that fan energy, pumping energy, losses across the building envelope, and losses due to dehumidification by ventilation are not calculated. You will need to do separate calculations for these items. See the instruction document for more info.

Click for more Instructions and Tips
Select city, state, and constant factors in common with both pools then enter basic information about each.










Current Pool









Proposed Pool









Use the time selectors to schedule the monthly and hourly period and the value selector to set the value. Each set of controls assumes a constant value over the whole period; selecting a shorter period will enable the next set of controls which will start where the others left off and go to the end of the year or day.
Current Pool
Monthly Heating Schedule
Jan 1  -   
Monthly adjustment of pool setpoint (°F).
Jan 1  -   
Proposed Pool
Monthly Heating Schedule
Jan 1  -   
Monthly adjustment of pool setpoint (°F).
Jan 1  -   
Current Pool
Daily Occupancy Schedule.
12:00 AM  -   
Proposed Pool
Daily Occupancy Schedule.
12:00 AM  -   
Current Pool
Monthly Schedule of Cover Use.
Jan 1  -   




Daily Schedule of Cover Use.
12:00 AM  -   
Proposed Pool
Monthly Schedule of Cover Use.
Jan 1  -   




Daily Schedule of Cover Use.
12:00 AM  -   

For outdoor pools, indoor temperature setbacks are not applicabable.
Energy Loss Current Pool Proposed Pool Difference
  Energy Use
(kWh/yr)
Cost Energy Use
(kWh/yr)
Cost Energy Savings
(kWh/yr)
Annual
Cost Savings
Evaporation:
Radiation to Night Sky:
Radiation to Ambient:
Convection:
Solar Gain:
Refill:
Conduction:
Total Heat Loss:      
Total Energy Use: