Don't laugh but this is the CoZy Legs Brand that Target sells for $39.99.Local store didn't have it so I did Target.com for a web order. I did some shopping on these and this is the lowest end I could find on the price spectrum. That being said I followed up with reviews AFTER the purchase...LOL...unfortunately this is typical of me. And there were some reviews that said they can crack. So far it looks sturdy to me. The back part (that is against the wall) stays cool and the front at 150 watts can be touched with your bare hand so it is mildly warm/hot. It's not throwing out a ton of heat...but enough to bring the coop up about 20-25 degrees above outside air temp. I'm good with that! It comes with Velcro with sticky adhesive as it's mounting mechanism to flat surfaces. That works like peanut butter in these cold temps...worthless. So what I did if you can see in the latter picture is mount it with longer torque screws to set it on. Then a screw at the top closer to the unit so the head of the screw would keep the top portion held to the flat surface. And a screw on either side so it doesn't slide side to side. In the spring I'll just reverse the screws and take it out and store it away. I'm not sure if putting it up horizontally would work...I suppose so with a similar method or maybe using wires to sort of basket it I suppose. Are you thinking the ceiling then for a horizontal set up?