What to you mount your inverter on?

Just make sure it has good air circulation around it; some can get hot (to the touch)

Mine is on the metal part of one of the MH's basement compartments.

I mounted mine on a carpeted sidewall of my basement compartment.

One I installed for another guy, I removed his propane tank, then drilled holes in the sheet metal box, mounting the inverter to the same metal as the propane tank is in, but on the outside of the tank box, under the fifth wheel, in that storage area.

My Trace M1512 inverter is not going to get warm, at least not above 120F. It has a fan that rarely runs (only while charging at over 60% rate).

The other is a 1,500 watt inverter that rarely ever sees more than about 400 watts going through it, so it stays very cool too!

Fred.

Mine is mounted behind the driver's seat. To make room the wooden "wall" had to be cut away. The "bar" for the dinette seat belt is the mounting structure, and it rests on a piece of angle iron to allow for ventilation.

I'll probably be adding a small fan.

Get an oversize wire rack and put it under the unit before mounting. This allows air circulation and acts as a heat sink dissipating the heat over a bigger area

Mine is mounted on the aluminum 2x2?'s in the basement. I have several inches on all sides, fyi they run HOT under full load.

Just wood is fine. Make sure there's plenty of ventilation so the combustion thing doesn't happen!