Plumbing Pool Heater Energy Calculator
Budget actual pool mass warming plus independently observed concurrent losses and caller delivery window/efficiency; evaporation/weather not inferred, no heater/temperature safety approval.
Description
Pool heating needs useful sensible heat plus losses during the delivery window.
Pool heating needs useful sensible heat plus losses during the delivery window. Explicit efficiency converts that delivered load to input power.1
The returned values include Required useful pool heat j, Required gross pool heater watts. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Pool Heater Energy Calculator
Use Plumbing Pool Heater Energy Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No evaporation/weather estimate, heater selection or temperature safety approval is supplied.
Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
How to use Plumbing Pool Heater Energy Calculator and understand its results
- Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
- Enter observedPoolWaterMassKg, callerWaterHeatCapacityJkgK, callerTemperatureRiseC, callerHeatingWindowHours, observedSimultaneousPoolHeatLossWatts, callerDeliveredHeaterEfficiency using the field table and calculation rules, then run the tool.
- Read requiredUsefulPoolHeatJ, requiredGrossPoolHeaterWatts. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedPoolWaterMassKg | Observed pool water mass kg | number | Required |
| callerWaterHeatCapacityJkgK | Caller water heat capacity jkg k | number | Required |
| callerTemperatureRiseC | Caller temperature rise c | number | Required |
| callerHeatingWindowHours | Caller heating window hours | number | Required |
| observedSimultaneousPoolHeatLossWatts | Observed simultaneous pool heat loss watts | number | Required |
| callerDeliveredHeaterEfficiency | Caller delivered heater efficiency | number | Required |
Enter nonnegative mass, temperature rise and concurrent loss watts, positive heat capacity and delivery hours, and efficiency in (0,1]. Return useful joules and required gross watts.
usefulJ=mass×heatCapacity×rise; grossW=(usefulJ/(hours×3600)+lossW)/efficiency Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| requiredUsefulPoolHeatJ | Required useful pool heat j | number |
| requiredGrossPoolHeaterWatts | Required gross pool heater watts | number |
{
"input": {
"observedPoolWaterMassKg": 1000,
"callerWaterHeatCapacityJkgK": 4200,
"callerTemperatureRiseC": 2,
"callerHeatingWindowHours": 1,
"observedSimultaneousPoolHeatLossWatts": 100,
"callerDeliveredHeaterEfficiency": 0.8
},
"output": {
"requiredUsefulPoolHeatJ": 8400000,
"requiredGrossPoolHeaterWatts": 3041.6666666666665
}
}Limitations and assumptions
No evaporation/weather estimate, heater selection or temperature safety approval is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Water Heater Energy Calculator: Sensible water-heating energy depends on volume, temperature rise and volumetric heat capacity. Input energy includes an explicit efficiency. For a complementary task, use Plumbing Pool Turnover Rate Calculator: Nominal pool turnover divides circulated volume by pool volume. Time-varying circulation requires integrating flow over intervals.
References
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Plumbing Pool Heater Energy Calculator — tool.io
Similar or alternative tools
- Plumbing Water Heater Energy Calculator
Sensible water-heating energy depends on volume, temperature rise and volumetric heat capacity. Input energy includes an explicit efficiency.
- Plumbing Pool Turnover Rate Calculator
Nominal pool turnover divides circulated volume by pool volume. Time-varying circulation requires integrating flow over intervals.