Hot Water Demand Calculator
Estimate daily hot water demand, peak flow, and heater sizing for residential buildings.
How to Use the Hot Water Demand Calculator
- Enter the number of occupants.
- Enter the number of hot water fixtures.
- Enter required temperature rise in °C.
- Review daily demand and heater power.
使用场景
- •Water heater sizing
- •Plumbing system design
- •Energy efficiency planning
公式
Q = m × Cp × ΔT
常见问题
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.