Stoves, Stoves Inset Riva 50 Inset Stove Share Riva 50 – Key Facts Overall dimensions 632 x 599 x 350mm (w x h x d) Heating efficiency Up to 83% Heat output 7.0kW Cleanburn system with Opti-Burn Yes Airwash Yes Riddling grate Yes Maximum log length 350mm (13 ¾”) Flue connection 128mm (5”) Riva 50 Inset Stove Riva 66 Inset Stove Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *CommentName* Email* Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.