Fluval E-300 mounting?
 

So I have used one of these ever since I started in this hobby. So, I bought another one for my new build. I like them because they seem to be pretty accurate and I like the digital display. My new tank is only 10" tall so obviously I cant mount it on the vertical and my sump would only allow for diagonal mounting. My question is, does anybody mount these on the horizontal? If so, have you had any issues? The instruction dont recommend horizontal installation but the heater is fully submersable. Any help is appreciated. Thx

Baker, your message box is full!!!! You cant receive PMs....