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Old 01-18-2017, 10:47 AM   #1
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Question ISO HVAC Options

Hey guys! I'm trying to figure out the best HVAC options for my schoolie. It won't need to be very mobile, it will stay on my property and be powered like all the other buildings. It's a 35' bus with about 10 people staying in it when its said and done, no appliances/kitchen/bathroom anything like that, just sleep space. What are my best HVAC options? I'm thinking a combo window unit- any particular brands/models yall like? Or if there are other ways to do it that worked well I'd love those suggestions too. Thanks!
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Old 01-18-2017, 11:34 AM   #2
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Welcome,

Details regarding climate and insulation would be very helpful.

If you are going to be using it in Yakima in August you probably won't be too concerned about your heater........


To properly size HVAC you need:

External temp
Target interior temp
Area of exterior surfaces (walls, floor, roof & glazing)
U or R value of exterior surfaces.
Parasitic loads (heat generated by 10 bodies)

From that you can estimate the Btu's required to meet your need.
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Old 01-18-2017, 01:55 PM   #3
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and how drafty it is.
But with so many windows, you can just keep adding 5 or 8k window units until you like it.
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Old 01-19-2017, 09:47 AM   #4
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***EDIT***

Hey- OG poster here- This is for a schoolie in central Va, so its usually around 30s-40s, minimum, in winter and 80s-90s max in summer (F)
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Old 01-19-2017, 01:16 PM   #5
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Go for a mini split system.
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Old 01-20-2017, 11:50 AM   #6
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Look!.
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Old 04-20-2017, 06:44 PM   #7
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mini split air conditioner

Has anyone done a mini split air conditioner on a bus? and if so how did it work out and if not what are the reasons for not doing it? I know how loud the roof top units can be and the mini split just seems like a cool alternative plus they are heat pumps so you also have your heating system too.
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Old 04-20-2017, 06:49 PM   #8
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I did mini splits, work great.
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Old 04-21-2017, 12:14 PM   #9
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When you say "mini splits" does that mean you have more than one in your bus?
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Old 04-21-2017, 01:02 PM   #10
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A mini-split sytem is a small heat pump that can easily fit inside your bus. It can provide AC as well as heat when needed. Obviously you'd need a considerable bank of house batteries or a generator to run that if you're not connected to the grid.
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