4. Fit a thermostat and protect your boiler.

Nothing shortens the life of a boiler faster than running it cold when wood or peat are being burned. Under these conditions moisture in the smoke condenses onto the exposed cold surfaces of the boiler and causes rapid failure of the metal. (Modern high-output boilers are made from ordinary mild steel for cost reasons.) The answer is to keep the temperature UP as high as possible and for practical purposes this generally means above 50ºC.
XXThe way to do this is to control the circulating pump via a "low level thermostat." The thermostat connects to an electrical power supply and the pump and is attached to the return pipe from the domestic hot water storage tank. This set-up has benefits all round. As well as protecting the boiler it saves you from having to remember to turn off the pump when you want a bath, since it always gives priority to domestic hot water over the radiators.
XXBe warned that most multifuel stove manufacturers consider their warranty void UNLESS you have this type of protection fitted.