Quote:
Originally Posted by JamieGeek
Keep in mind, however, that a class B has all of the OEM designed sound suppression in it. This would make the main engine very quiet compared to your average 5kW Onan in a coach.
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I agree, although no idling restrictions will make it necessary (or at least preferable) to not run van or motorhome engine during the night.
Fortunately, at night a van can be cooled easily with 5,000 BTU/hr A/C, and I’d bet with good insulation and quality windows it can be done with much less than that.
Basically, these battery banks with useable 600+ Amp-hour (13 VDC) should keep a van cool all night without needing the engine. What’s missing are compact DC air conditioners that are much smaller than the 20,000 BTU/hr unit used by Coachmen, but with similar energy efficiency ratings of around 16~17. There are smaller rooftop A/Cs powered by 12 VDC, but the ones I’ve seen are too small for daytime cooling. Something in the 10,000 to 12,000 BTU/hr range with ability to operate at about 3,000 BTU/hr or lower is needed badly. With a good turndown ratio it will also make the A/C quieter at night.