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Old 08-17-2015, 05:00 PM   #11
Bus Crazy
milkmania's Avatar
Join Date: May 2015
Location: Oklahoma aka "God's blind spot"
Posts: 2,241
Year: 1989
Coachwork: 1853FC International/Navistar
Chassis: 35' Retired Air Force Ambulance
Engine: DT466, MT643
Rated Cap: 6 souls and a driver
Originally Posted by crisnpropa View Post
Hello all,

I have a 1998 international blue bird. I wish to add an a/c unit to keep the bus cool when it is parked. The a/c does not have to run while the bus is moving.

I have two ideas for this:

1.) install one or two rooftop rv a/c unit and wire it so that I can plug it in to a home or business outlet when parked.

2.) install a standard home window a/c unit at the rear of the bus by cutting a hole in the wall above the rear emergency exit door.

My questions are: Will a 50ft or 100ft extension cord be sufficient to do the job of carrying the power supply to the a/c's?

Is it even possible to wire a rooftop unit to work off of a cord connected to a home outlet?

Any opinions or suggestions as to which idea is better or more feasible or economical?

Thank you in advance for any and all feedback. This is a mobile business and therefore I only need the a/c to run while the bus is parked.
all the RV's I've had use 10/3 wiring.... like this

that being said, I'm currently running a 5200btu ac, mini-fridge, & coffee pot off a 50' 12/3 extension cord on a 20amp breaker with a circuit breaker power strip in the middle.... I've only tripped the power strip once in 3 weeks running the coffee maker, and that was because the A/C was just starting up. it's only a temporary arrangement.

I also throw an occasional 3 watt CFL when extra light is needed
I once complained I had no shoes....
Until I met a man with no feet
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Old 08-17-2015, 11:11 PM   #12
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Join Date: May 2014
Location: Dublin California USA
Posts: 46
Coachwork: Looking for something
Chassis: Big Enough to fit my dog
we had a neighbor gut an RV to create a mobile video game business. This is a business you want to figure the cooling requirement... Then buy 2 units capable of doing it. Or cut the number in half and buy 3 units. That way when one dies you are not screwed. I am concerned about the amps required. Homes run 15 amp circuits you could be really really close to the edge of that with the required AC. Do you want to plug in to a customer and blow the power. I would really think about a generator and having a no onsite power fee, and a detailed description of what is required. Best business advice Ive gotten is don't sweat owning everything. Rent what you need build the cost in. You can get a big ass generator from the rental yard pretty cheap for a day. Then you only need it for paying gigs vs buying one that sits around. Give you time to build up funds to add a nice onan to your rig.
Mike Hathaway
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