Today, Keston uses 3 rd generation technology on all its products as part of a boiler replacement rollout. Units are all SEDBUK A-rated, maximum performance and reliable heating systems, combined with ultra low NOx combustion. This means minimal running costs and virtually no atmospheric pollution - up to 30 per cent saving on fuel bills. The company is certified to ISO: 9001.

Keston's market split between domestic and commercial boilers is virtually 50/50, trading solely through merchants. In addition to these divisions, the company offers a unique bespoke prefabricated service in the commercial sector. The made-to-order solutions are usually supplied within three weeks in an aim to reduce site time, and therefore costs.

The commercial division is promoted through merchants; listed by all five major national concerns, among many others. This route to market is somewhat uncommon, but very effective. The choice of market infiltration may seem unorthodox to some, but the company's success is unquestionably clear judging by its soaring sales figures.

In line with regulation changes to Part L, in force from April 1 2005, Keston has actively researched installer demands and competitor movements. Along with joining SBGI, Keston sits on the SEDBUK panel, where it can examine technical solutions for all applications. It was also a member of the working group set up by the Government to establish to qualifying criteria for exemptions to the April 2005 regulations.

Using these advantages to observe demand and supply trends and forecast future industry developments, Keston recognised the need to enter the combination boiler market.

The launch of the C36 Combi in March 2005, a 36kW modulating condensing boiler, is indicative of the company's progress towards fully implementing 3 rd generation core technology. It features in-house developed and manufactured advanced heat exchangers and burners, very unusual for modern boiler producers.

The high performance C36 Combi, along with other units in the condensing range, features a unique flue and air intake system which is simply standard 50mm muPVC kitchen wastepipe available from plumbers merchants The flue is therefore only approximately £1 per metre and is widely available. Its flexibility means it can be extended up to 60 metres, allowing for trouble-free positioning. Installers can choose key installation locations to avoid pluming.

In addition to the company's commitment to ingenuity and efficiency, Keston offers a popular training programme for installers and service engineers.