I got the tubular one from Argos (on that thread) they were sold out apart from one in Southampton that was before Christmas. Its fitted to the shed wall (well out of buns reach) it doesn't make the shed warm as such but, takes the edge of it. I don't leave on all night though, I turn off and cover the window and switch on again early morning although by the time she has been out and run around she has brekkie and then wants to sit outside anyway:roll::lol: Will be interesting to see my electric bill ....