@sequoia464 posted:Hi Harriet, It's been a while now since you installed the Microair thermostat - any issues or new thoughts? I'm looking at getting one again.
I'm also curious about the Mach 10 NDQ that you had on your 1685 - was there a notable difference in how quickly it cooled the trailer compared to the stock 9.2K Mach 8 units that came on the 1685?
Hope life is treating you well these days, looking forward to seeing you at Shingletown, take care until then.
I haven’t had any issues with the thermostat, I really like it. It took me a bit to get used to the interface, but it’s pretty logical. It hasn’t given me any trouble, works just like it should.
It recommends a 3 degree differential to avoid short-cycling, which works well with heat, but somehow I find that it’s a bit more than I like for AC when the AC starts cycling - but that is more about how I react to air conditioning than the thermostat. I could change it to 2° or more than 3, but don’t.
I love being able to set a schedule, it was very useful over the winter. I don’t find it as useful with the AC, but that’s partly because I’m on metered electric so try to limit shore power when the AC is on, letting the MultiPlus allow solar to provide as much power as it can. But that’s another topic. It’s possible to set the thermostat for a temperature range and let it switch between heat and air, I just don’t use it.
While the 13.5K NDQ was a little more efficient cooling than the 9K, the difference wasn’t huge. It would start cycling sooner than the 9K, which more often than not just ran all the time (not a surprise when it’s over 100°F outside). And I thought that I might have gotten 1 or 2 degrees more for differential between outside and inside temps - it seemed like the 9K would cool the trailer down about 20°, while I would get 22° with the 13.5. That made the difference between being comfortable or not when it’s 105° outside, but it wasn’t a huge difference. I upgraded to save my hearing more than to cool the trailer any better.