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| Shell Centre, London SE1 | |
| Key design data (original SI) | |
| Design conditions | |
| Winter | |
| External: | 280F, 80% rh |
| Internal: | 680F 54% rh |
| Summer | |
| External | 80F, 54% rh |
| Internal | 75F, 49% rh |
| Heat gains (typical 288 ft2 sunlit bay) | |
| Glass: | (50ft2) 75 Btu/h/ft2 |
| People | (4) 250 Btu/h/ft2 |
| Walls | (120 ft2) 170 btu/h (total) |
| Lights and power | 9.2 Btu/h/ft2 |
| Design margin: | 10% |
| Total heat gains: | 7320 Btu/h |
| Air conditioning | |
| Frenger panels | |
| Outer grid: | 20 Btu/h/ft2 |
| Inner grid: | 10.4 Btu/h/ft2 |
| Total per bay: | 3560 Btu/h |
| (Note: inner Frenger panels do no heating) | |
| Ventilation | |
| Air (total) | 3760 Btu/h |
| Total cooling: | 7320 Btu/h |
| Heat losses | |
| Glass: | (U-value: 0.6) 30 Btu/h |
| Walls: | (U-value: 0.35) 42 Btu/h |
| Air change rate: | 0.25 (690 ft3) 14 Btu/h |
| Total heat loss: | 86 Btu/h |
| Key original suppliers | |
| Boilers: | Babcock & Wilcox |
| Calorifiers: | Hartley & Sugden |
| Convector heaters: | Copperad |
| Dampers: | Thermocontrol |
| Diffusers: | Aspiration |
| Ductwork: | Gardner, Henry Hargreaves |
| Electric water heaters: | Santon |
| Fans: | Woods of Colchester |
| Fan drives: | Wigglesworth |
| Filters: | Matthews & Yates |
| Heat exchangers: | APV |
| Heating & cooling batteries: | F H Biddle |
| Hose reels: | Pillinger |
| Local plant controls: | Electroflo |
| Pneumatic controls: | Drayton |
| Pumps: | Worthington Simpson |
| Radiant ceiling panels: | Frenger |
| Radiant heating panels: | Comyn Ching |
| Valves: | Hattersley |
| Ventilation grilles: | Richard Crittall |