Summary

Condensing boilers are over 90% efficient, reducing energy costs and greenhouse gas emissions by capturing lost exhaust heat. Combi Boiler: Heats water on demand; space-saving; ideal for small spaces. Regular Boiler: Traditional setup with separate controls and hot water tank. System Boiler: Similar to regular, includes an expansion vessel for space-saving.

Combination (Combi) Boilers: Popular for new installations, suitable for flats but may not fit homes with multiple bathrooms or low mains pressure. Instantaneous Combi Boiler: Heats water on demand; less efficient but cheaper to install. Condensing Instantaneous Combi Boiler: More efficient than standard combis. Combi Storage Boiler: Hybrid design with a hot water reservoir. CPSU: Holds larger amounts of water for better flow rates.

Conventional Boilers: Less space-efficient but suitable for large families needing simultaneous hot water.

Energy Efficiency: Installing thermostatically controlled radiators (TRVs) can reduce heating costs by regulating room temperatures. Proper placement is crucial for efficiency.