Deceptively small, the Potterton Promax SL Heat is a powerful, high efficiency heat only boiler available in five outputs - 12kW, 15kW, 18kW, 24kW and 30kW. All boilers are fully modulating and are small enough to be installed in standard kitchen cupboards.

Unlike most other heat only boilers on the market, the Potterton Promax SL Heat does not need a pump overrun, making it easy and quick to install, with minimum disruption for the householder as no carpets or floorboards need to be lifted. Flueing options up to 20 metres mean that siting this powerful little boiler is very flexible.

• 12kW, 15kW, 18kW, 24kW and 30kW – a model for most sizes of property
• Fully modulating and highly efficient – the boiler intelligently uses the right amountof fuel to meet the set central heating temperature, saving money on fuel bills
• Compatible with Potterton Solar, Megaflo Eco Solar Cylinder and Santon Premier Plus Solar cylinder – low carbon and greater fuel savings for hot water, all available from one manufacturer
• No pump overrun - three wire connection saves time and money on installation
• Simple mounting plate – for easier installation
• Flueing options of up to 20metres – allowing greater flexibility of siting
• Compact and light – can be installed discreetly in a standard kitchen unit
• Reset button – no complicated controls, making it very easy to use
• N0x Class 5, best in class – complies with the Code for Sustainable Homes