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Old 08-05-2022, 05:07 PM   #1
btheo_TrailMini
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Join Date: Aug 2022
Posts: 11
Default faux split mini AC for roof mount? What am I not considering?

Hi everyone..

I have a Coleman Mach3+ (13.5k btu) AC roof unit installed in my 2010 TrailMini. Its drastically oversized, very noisy, not particularly efficient, and nowhere near capable of running off my solar setup.

I am looking for a much smaller AC unit to replace it with, ideally an inverter-based, and high energy efficiency. That mostly puts me in high CEER mini-split units.

That quickly puts me in $2k territory. Meanwhile I feel like there are a bunch of cheaper options that nobody is doing..

Anyone care to provide feedback on why these might be bad ideas?

1. Install a faux-split window unit, directly into the roof..

Either of these for example:

https://www.amazon.com/GE-ClearView-.../dp/B09HDT9C4G

https://www.amazon.com/Midea-Inverte.../dp/B08677DCKN

The downside is that I would have to expand the existing 14x14 ceiling hole to 19x14. And not sure if thats a bad idea on its own.


2. Install a faux-split window unit, through the wall, via a teardown of the AC unit.

I could tear either of those units down and make them into a "through the wall" design (with the help of an AC installer to de/re-couple the coils and drain/fill them. It seems like its been done successfully by others.



https://www.fordtransitusaforum.com/...success.86312/

3. I could convert an inverter-powered window unit into a weatherproof'd outdoor unit, and pump the output down through one of the roof hatches. A little janky, but definitely the cheapest solution.

Thoughts for any of these?

Thanks for reading,
Blase
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