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| HEATING COMMERCIAL Gas Fired Boilers Heat Exchanger Combined | 2 suppliers |
| BOILERS DOMESTIC Gas Fired: . | 1 supplier |
| BOILERS DOMESTIC Gas Fired: Micro-CHP Combined Heat and Power Microgeneration | 1 supplier |
| BOILERS DOMESTIC Gas Fired: Micro-CHP Electricity Microgeneration FiT (Feed-in Tarriff) | 1 supplier |
| BOILERS DOMESTIC Gas Fired: Micro-CHP Microgeneration Wall Hung | 1 supplier |
| FANS Chimney Fans: Open Gas Fires / Atmospheric Boilers | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Low Flue Gas Temperatures | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Modulating | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Modulating Pre-Mix | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Multiple Installation | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers NOx Class 6 EN 15420 and EN 297/A3 | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Ultra Low NOx Emissions | 1 supplier |
| HEATING COMMERCIAL Gas Fired Boilers Wall Mounted | 1 supplier |
