Including a 24kW model designed to address the market demand for low output high efficiency combi boilers, Baxi has launched Baxi Platinum HE. The range comprises a 24kW, 28kW and a 33kW model, with flow rates of 9.8, 11.5 and 13.5 l/min at 35oC rise respectively. The 24kW combi has been developed for small families and single people, who now make up over a quarter of all households in the UK and have a lower demand for hot water. Prior to the launch of the range, 30,000 life cycle hours and an 18- month field trial were carried out, and the PCB was tested for 5,000 hours in varying hostile environments. This extensive testing means the company are confident enough to offer a five year warranty.