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DHW Cylinder Recovery
Reheat time, energy and recovery rate for a hot-water cylinder from cold to stored temperature.
The Ensign ToolboxDHW Cylinder RecoveryReheat time, energy and recovery rate for a hot-water cylinder from cold to stored temperature.
Cylinder
L
°C
Legionella control ≥ 60 °C
°C
UK mains design ≈ 10 °C
K
Heat source
kW
3 kW immersion; boiler coils 10–20 kW
%
100 % direct immersion; lower for an indirect coil
Enter the cylinder volume, temperatures and heat input to calculate recovery