Thank you for the replies and guidance. Indeed I was thinking of the early 20th century cast stoves from the likes of Godin, Chappee and Faure etc (typical example enclosed). I hadn’t found many references to antique stoves being installed, and was wondering why this was the case. They are typically very well constructed indeed and many survive in excellent condition, a testament to their quality & design. There are a number of companies in the UK that fully restore antique stoves. They present a beautiful and colourful alternative to the sea of black Morso stoves.
The length / height of the flue is something I hadn’t considered. @Athy, was this an issue with your Radiolette?
Thanks again ?