The Amptec Electric Boiler by Heatrae Sadia has comfort and control in abundance.  The Amptec electric flow boiler provides hot water to your wet central heating system just like any other conventional gas or oil boiler. The Amptec is suitable for pressurised or open vented systems, it can feed heating system and/or hot water cylinders, and with no flue or heat wasted up the chimney, the Amptec is 99.8% efficient. It is compact and unobtrusive. 

Aquair HIU range from Johnson & Starley.  The Aquair is a water to air heat exchange unit with a heat output between 10kW and 36kW (assuming a hot water supply of 80C is available). With the latest energy efficient technology, the Aquair Heat Interface Unit is the most unique and versatile solution on the market when it comes to replacing any aging warm air heater. The Aquair will provide all the benefits that a centralised heating system can offer. 

The Vaillant ecoFIT pure 418 Regular Boiler is in my opinion the number 1 boiler choice for cupboard fit heat only installations on the market, its perfect for compact installs with options of both rear and top flue installations. The ecoFIT regular series is one of Vaillants most compact versatile boilers ever manufactured.  And has a 10 year warranty available, its such a good boiler for the price tag. 

Worcester Greenstar 8000 Style 50kW Combination Boiler has a fantastic new modern design, with greater connectivity to the Comfort II controls. Worcester have also made the Style range one of the quietest boilers to date. So it can sit comfortably in any room of your home to keep you cosy in the cold winter months. For complete peace of mind, it comes with a 10 year guarantee when fitted with a worcester system filter.

The Greenstar Ri regular boilers are the smallest of the Worcester condensing boilers, they can even be installed within a standard kitchen cabinet, with dimensions of 600mm h x 390mm w x 270mm d. The Ri is a Regular boiler (sometimes known as traditional, conventional or heat only boiler) is ideally suited to homes that already have a traditional heating and hot water system. 

The Worcester Greenstar 25i boiler is basically just an upgraded Greenstar Junior, which is probably one of the most popular boilers in the UK over the past decade, and now the 25i is also one of the most popular boilers in recent years. It has always puzzled me as to why these two boilers are so popular, as I spend most days fixing them, I personally think the junior had a lot of design flaws, and the quality and materials of the components were a bad choice by Worcester.