Openfire to woodburner/multifuel stove - how jammy? I have grease central heat and am finding it extremely expensive, i...

I have grease central heat and am finding it extremely expensive, i also have an unseal fire with final boiler but dont use it much as i really dont have the time to label a fire everyday. I was thinking going on for installing a woodburning/mutlifuel stove which could be on all the time and steam my rads and water. since i already hold a back boiler to my stretch out fire would i need to put surrounded by a new subsidise boiler to fit a stove or are they generally a general fit. Also how much work would be involved in converting my openfire to a stove?
Does anybody own this (DEWALT DC757)? If yes,...
Answers:    Phone a company call Batley Barless near leeds, they are the experts. Sounds close to an expensive job though, but i own a stove and they are fantastic.