Stratford boiler stoves are different from many other central heating stoves in that the boiler is built as part of the stove. In many stoves the boiler is added in to the firebox taking the place of firebricks - almost as an afterthought. In a Stratford stove the boiler is actually part of the stove which means a larger surface area for heat to transfer to the water - this is why Stratford boiler stoves can achieve such high outputs.
Inside the boiler there is a special cold water anti corrosion system - what exactly this is is a trade secret (Stratford stoves would not even tell us what it is), suffice to say there Stratford stoves have been in use for over 15 years with no problems. The life of the boiler obviously depends on the competence of the installation and on what fuels are used and how hard they are burnt.
All Stratford stoves should be correctly sized for the heating needs of your home. Stratford boiler stoves are best burnt relatively hard. Long-term slumbering not only reduces efficiency of the stove but can also reduce the life of the boiler. Make sure that you get a qualified heating engineer to calculate the loading of your heating system before deciding which Stratford boiler stove to go for.
The boiler on a Stratford stove has four tapping points - the idea is you cionnect the grvity fed loop (usually leadfing to the hot water tank) to one set of tappings eithe top left and bottom right or top right and bottom left, and then connect the radiator circuit to the other two tapping points.
A pipe stat must be fitted to the return from the gravity feed pipe and set at 45 degrees. This stat controls the main central heating pump: it only turns on and diverts some of the heat to the radiators once the domestic hot water has reached 45 degrees.