<p>The next big project was the air conditioning. In southeast Georgia in the middle of summer time, this comes in super handy. I was a soldier and I can deal with heat, but it's much nicer if you don't have to. Extended stays in 120 degree vehicles is just no fun at all. The air conditioner, however, has posed a big challenge from the very start of the build. The original plan called for modifying a window unit air conditioner and placing it in the opening in the back driver side corner of the van. Hot air from the coils would have been vented out of a vent in the back door. I used a similar design in the military and it worked pretty well. The van has a pretty small interior space so I am confident a 5,000 btu unit would have been more than enough and would have worked well. Things, however, changed. The van has went from camper to soon-to-be home and that requires alot more stowage space. The space in the rear where the a/c was meant to go is just way too much storage space to pass up. Additionally, I may use a tent from time to time to have additional space and the a/c mounted in the van would be difficult or impossible to move and would be unable to cool both. After much wrangling and searching, I decided the best choice would be a true portable air conditioner. I found a good deal on one at a flea market. It will just fit between the two front seats. It is an 8,000 btu unit so it cools off the van very quickly. It has enough capacity to easily cool a tent if need be and it can be removed from the van and stored during the cooler weather and save valuable space in the van. All great things. Two problems: power to run it and how to vent it. I reasoned that even the smaller window unit would require far more power than a modest battery bank and inverters would be capable of supplying for a whole night. Therefore, it would only really be useful with shore power (in which case how much power it drew wouldn't matter anyway) or when I was able to use the generator. So really power issues would have been the same for either air conditioner plan. Venting was more complicated. In the front of the van there really aren't alot of easy ways to do it. Ultimately, I decided the best most practical way was to build an adapter to fit in the driver side window when the air conditioner would be used. It took some trial and error to figure out what would work best. This shows the finished design in the window. It is pretty water tight and is quick and easy to install. Just loosen the wing nuts, roll down the window, put the adapter in place and roll the window up. Tighten the wing nuts so it is water tight. hose just attaches by friction. It can be installed and removed in a minute or so. With just the fan only running it does not need the hose attached and will easily run all night from the battery bank. So, if I am where I need to be a bit more stealthy, I can cool off the van and then use just the fan for the rest of the night.</p>