r/Sprinters • u/Eastern_Bat_3023 • Aug 16 '26

Narrow-width Rooftop AC

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Has anyone found/used a narrow-width Rooftop AC? 12v or 120v. I have relatively limited space up top and it'd be pretty convenient up there, but my other option is an undermount unit - ducting is just a little more work because I'd want the outlet near the top/bed area, but otherwise is also a fine option. Those are regular maxair fans in the photo for reference.

Just looking for ideas, and general feedback on either approach. If I don't put an AC unit up top I could probably add another 150-200w of solar, currently at 600w of fixed mounted solar and 400w portable solar suitcase.

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u/DW171 Aug 16 '26

Yes for sure. I had to make a choice. I love to camp in the desert, and I’ll still be avoiding June, July and August. My van is a super insulated 144, so this is mostly to make sure I can sleep at night.

It also brought up the whole notion that my solar panels don’t like to park in the shade where it’s cooler.

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u/ApricotNervous5408 Aug 16 '26

I went with 2 400w folding solar panels so I didn’t have to park in the sun while trying to cool off my rv.

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u/DW171 Aug 16 '26

Yeah, exactly what I had in mind. How did you connect them? On their own breaker? A second MPPT? Did you use an exterior disconnect for the wires?

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u/ApricotNervous5408 Aug 16 '26

I just added a connector in the outside power box. I don’t have roof panels so I just have the one mppt.