Glow-worm
Energy Combi 30C 30kW
Gas combi boiler, 30.6 kW hot water output
Last reviewed 13 September 2026
Specifications
| Hot water output | 30.6 kW |
| Central heating output | 25 kW |
| ErP class | A |
| Seasonal efficiency | 94% |
| Dimensions | 700 x 390 x 280 mm |
| Weight | 33 kg |
| Warranty | 7 years |
| Hot water flow rate | 12.5 litres per minute |
Figures taken from an established dealer: source. Specifications change by model year and configuration - confirm with the supplier before relying on them.
Who uses it
A gas combi boiler with 30.6 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 12.5 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 7 years. Seasonal efficiency is 94%.
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