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DHW Storage Sizing by Occupancy
Size a hot-water cylinder from occupancy (dwellings, hotels, offices, schools — CIBSE Guide G-lineage tables): recommended storage volume, recovery duty and next standard cylinder size.
The Ensign ToolboxDHW Storage Sizing by OccupancySize a hot-water cylinder from occupancy (dwellings, hotels, offices, schools — CIBSE Guide G-lineage tables): recommended storage volume, recovery duty and next standard cylinder size.
Building
Sets the litres-per-occupant demand figure (CIBSE Guide G-lineage tables)
occupants
45.0 L per occupant
h
CIBSE Guide G design practice: typically 1–2 h
Temperatures
°C
Legionella control ≥ 60 °C
°C
UK mains design ≈ 10 °C
K
%
100 % direct immersion; lower for an indirect coil
Enter the building type, occupancy and recovery period to size the cylinder