You have not even requested with regards to the installation strategy but however you can assert to find out 4mm cable will be sufficiently big? EvanReese Member, Mentor Posts: 2,471 ✭✭✭✭✭ September 2023 @petr_škaloud I use warmth set inserts far too, but I'm not sure how I might accommodate them https://alanj123ync4.anchor-blog.com/profile