Hot Water Recirculation Calculator vs Hot Water Energy Cost Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Hot Water Recirculation Calculator
Estimate the heat loss in a hot water recirculation system based on pipe length, diameter, insulation quality, and acceptable temperature drop. Use this when designing or auditing a recirculation loop to minimize wait time and energy waste.
- Answers
- Required Flow Rate (GPM)
- Inputs
- Total Piping Length, Return Line Diameter, Acceptable Temperature Drop, Pipe Insulation
Hot Water Energy Cost Calculator
Estimates your monthly water heating bill based on daily hot water use, temperature rise, energy source, and heater efficiency. Useful when comparing electric vs. gas heaters or auditing home energy costs.
- Answers
- Monthly Heating Cost ($)
- Inputs
- Daily Hot Water Usage, Temperature Rise, Energy Source, Energy Rate, Water Heater Efficiency
At a glance
| Hot Water Recirculation Calculator | Hot Water Energy Cost Calculator | |
|---|---|---|
| Category | Plumbing | Water Usage |
| Answers | Required Flow Rate | Monthly Heating Cost |
| Inputs | 4 | 5 |
| Result unit | GPM | $ |
When to use each
Estimate the heat loss in a hot water recirculation system based on pipe length, diameter, insulation quality, and acceptable temperature drop. Use this when designing or auditing a recirculation loop to minimize wait time and energy waste.
Estimates your monthly water heating bill based on daily hot water use, temperature rise, energy source, and heater efficiency. Useful when comparing electric vs. gas heaters or auditing home energy costs.