Originally Posted by 89chevy8.2
How would you mount one under the bus? Seems to me that it would get beaten with road debree, because you cant fully enclose them.
I would think that if you do not have any storage bays under the bus that you would have to make a box out of either wood or metal. Metal would be preferable. You would have to vent it so that the hot air coming off the evaporator (the outside radiator part) would have a place to go.
Then you would have to make duct work for the cool air to come in, most likely with a hole in the floor. It does sound like a lot of work to do that. Also, you would need to have access to the controls, perhaps a remote control for the AC. There are ways to split the condenser and evaporator. They actually make those kind of units. I bet they are expensive though.
However, if you are not traveling with the bus very much, stick an AC in one of your windows, and remove it when you drive.
Your best bet would be to find a place on the rear of the bus to put it in. Check out TygerCub's install. I don't know if you have a rear engine bus. Even if you do, I would think that the smaller windows would be big enough for a small window unit. You could even put one 5000BTU unit in each of the small windows.
There are lots of posts about air conditioners on this forum. Spend some time reading them, and I am sure you will find your answer.
I know that roof airs are very common. You can see, however, how many of us feel about them.