| Boiler Model | kW | Efficiency | Warranty | Typical Price | |
|---|---|---|---|---|---|
| Keston S30 30kW System Gas Boiler | 30kw | 89.5% | 7 years | £1,100 | VIEW |
| Keston C30 30kW Combi Gas Boiler | 30kw | 89.6% | 7 years | £1,140 | VIEW |
| Keston C35 35kW Combi Gas Boiler | 35kw | 89.6% | 7 years | £1,180 | VIEW |
| Keston Heat 45kW Regular Gas Boiler | 45kw | 89.2% | 7 years | £2,225 | VIEW |
| Keston Heat 55kW Regular Gas Boiler | 55kw | 89.6% | 7 years | £2,610 | VIEW |
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