Quiet, or not?

With all the "noise" about loud furnaces, I thought I'd check on mine in the new Oliver.

First, a measure with nothing on.  Very quiet at 34 dB.

Next I measured with the gas furnace running and the electric heat-strip in the air conditioner blowing.  The blower overhead makes a fair bit of noise, but not horrible at 56.9 dB.

And finally, with just the gas furnace on.  A lot more reasonable 50.4 dB.

In my view, all these readings are acceptable and lower than typical in new RVs.   Certainly can live with these levels.  As a comparison, in my Travato, the ambient noise level was 50, the level with the generator running inside was over 60 inside and 79 outside.  It's furnace reads well over 60 too.