Circulation Pump

Calculate Circulation Pump instantly with the exact formula and a worked example.

Circulation Pump

Heated aream²
Specific heat lossW/m²
Supply–return temperature difference°C
Longest circuit length (supply + return)m
Friction pressure lossPa/m
Flow rate
0.645m³/h
Calculate Circulation Pump instantly with the exact formula and a worked example.
Heat load
15kW
Head
1.99m
Flow
10.8L/min

More about: Circulation Pump

What it calculates

The “Circulation Pump” calculator computes Flow rate in m³/h from 5 parameters: heated area (m²), specific heat loss (W/m²), supply–return temperature difference (°C), longest circuit length (supply + return) (m), friction pressure loss (Pa/m).

Used in design, material estimation, and structural calculations.

Example calculation

With parameters Heated area = 150 m², Specific heat loss = 100 W/m², Supply–return temperature difference = 20 °C, Longest circuit length (supply + return) = 100 m, Friction pressure loss = 150 Pa/m the result is 0.645 m³/h.

How to use

  1. Enter heated area, specific heat loss, supply–return temperature difference, longest circuit length (supply + return) and friction pressure loss — each field above is adjustable with a slider.
  2. Flow rate (m³/h) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Circulation Pump calculated?
The Circulation Pump calculator computes Flow rate (in m³/h) from heated area, specific heat loss, supply–return temperature difference, longest circuit length (supply + return), friction pressure loss. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Circulation Pump calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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