CObus,

I'm going to steal your Webasto set up. Mine whines and sounds like a blowtorch at the same time and like you said the circulating pump also contributes to the noise level.

The generator is likely as good as can reasonably be expected because when it is running along with a cruise air or two the cruise airs make the most noise by far. That is the condenser unit fans that we hear outside.

I'm too busy locking up the bling award to worry about noise right now. My focus is on bling.