Well there are lots on the market
Have a look here for some inspiration on 5Kw Stoves https://www.croydonfireplaces.co.uk/about-us/news/5kw-woodburner-inspiration and links to how much they are.
Have a look at our video below for some ideas as to contempoary 5Kw Stove, or a traditional 5Kw Stove.