Thank you for your question.
The user manual for this stove says "Your stove also has a boiler jacket integrated into the rear of the stove.
This is used to heat water which can be used to heat your domestic hot water supply. Depending on the configuration of your installation your
Stratford boiler stove is capable of heating radiators, underfloor heating and a hot water tank.
Please speak to your installer who will be able to explain how your stove has been connected and give some advice on how to best utilise its heat output."
Hope this helps?