The Potterton Powermax HE combines a condensing stainless steel heat engine, unvented Duplex stainless steel domestic hot water cylinder, pump and programmer in a single package - virtually 'a system in a box'. Installation is reduced to just seven pipework connections plus the flue, which is available in a wide range of options for freedom of siting the boiler and the flue terminal.

High performance central heating and hot water in one box. For a complete installation just add the flue kit, radiators, valves and pipework.

Three models to suit the majority of situations, serving up to 2 bathrooms, an en-suite, a cloakroom and a kitchen
DHW flowrates up to 48 l/min - filling a bath in around 5 minutes
Operates at water pressures as low as 1.0 bar
Rapid recovery of store (15-20 mins)
Output modulating down to 6.7 kW for maximum efficiencyv
Automatic by-pass for systems with thermostatic radiator valves
Integrated and pre-wired 7 day 3 period electronic programmer with battery back up
On-board diagnostic functions with LED display
Built-in frost protection
User selectable hot water store temperature
Boiler heat exchanger and storage cylinder in high quality stainless steel
Cylinder guaranteed 10 years
Optional back-up electric immersion heater
Comprehensive concentric and twin pipe flue options