Today I made a post in a thread where the OP was asking about some way to use his Deuce to power his home. Since my post there is actually fairly relevant here as well, I copied and will paste that post here. It may not exactly answer the question of this post but I beleive it might be someting the OP here may want to at least consider...
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Well... This may not exactly fit what your initially thinking of doing but it might be something worth considering.
Do you have air conditioning in your Deuce? (Would you like to have it?)
Do you have heat in your Deuce? (Would you like to have it? - Or more of it?)
Do you have a separate 12 volt DC system in your Deuce? (Do you want one?)
How about this:
20,000 BTU of ice cold A/C
13,500 BTU of heat
60 amps of 12 volt DC
6000 watts of 120 volt AC power
RigMaster Power - Features & Benefits
Mounts to the frame under the bed/cab like your fuel tank, batteries and spare.
Uses way less fuel than your primary engine. LOTS of stuff this thing can do, check the link above for more info.
New cost is about $8,000 but you can find these things all day long used and in great condition for about $2,000-2,500.
If you add a bank of 12 volt deep cycle batteries (Personally I would use 4) you can run a good size inverter to give you 120 vac (volts AC) for several hours. The unit can be set so that it senses battery voltage and automatically starts the APU to recharge the battery bank, (Completely unattended - no need for you to get up at 0-dark thirty to start the engine) Once the batteries are topped off the unit shuts down. If you want/need more power than your inverter can put out just run the APU and get 6kw of good AC power.
Additionally, you can set the APU to start up automatically at a given time/date and run the A/C or heat for you. This can cool or heat your cab for you before you ever get in the truck. For somebody with a MV camper conversion this unit is almost a no brainer.
I know somebody is going to point out that in order to get the A/C or heat from the unit while your driving down the road you have to have the APU running as well as the main engine. Yes, this is correct. However, the APU uses so little fuel it is not really an issue. Also, consider that most people in large RV's do the same thing because the dash air of the RV is no way enough to cool (or heat) the entire RV while underway so most RV people run the generator so that they can run the roof A/C unit(s) while driving.
With the APU unit referred to here installed in your Deuce (and an inverter) you could install a small office type refrigerator in your cab and run it off the 110/120 VAC inverter that is running off your 12 VDC battery bank. When the batteries need recharging the APU fires up and takes care of it for you while your sitting in the Cracker Barrel having a nice dinner on the way back from the MV rally... Or whatever...
Read the page I linked to above and you'll see that it does a lot more as well. While this system may not be exactly what you asked about, I thought you might at least find it interesting.
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I hope this "Re-post" is not to unrleated and is of some use.
