How do I calculate flow rate for radiator balancing?

Use the formula: Flow (L/hr) = Power (W) × 0.86 / ΔT. For a standard temperature difference of 20°C, this simplifies to Flow = Power × 0.043. For example, a 1000W radiator needs approximately 43 L/hr flow.

What is the standard Delta T for radiator systems?

The standard ΔT (temperature difference between flow and return) is typically 20°C (36°F) for radiator systems. Low-temperature systems may use 10°C, while older systems might use 25°C.

Why is hydraulic balancing important?

Hydraulic balancing ensures each radiator receives the correct water flow for its heat output, improving comfort, reducing energy consumption, and eliminating cold spots or overheating in different rooms.

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Waterzijdig Inregelen Calculator

Bereken Debiet voor Radiatoren

Voer radiatorvermogen en Delta T in om het benodigde debiet te berekenen.

Radiator Vermogen (Watt) (W)

Delta T (°C) (°C)

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