We run our generator all the time, all the time when dry camping. In National Parks we run it the entire day before quiet time sets in.
At the flying J, we run it all night from the moment we stop for the day.
Kohler, like the Power Tech guys, and Marathon (Leon), have over and over lectured us to RUN the genset.
We Rarely use the Webasto, now. I wish we didn't have one. Superbus1 doesn't use a Webasto or like product, their coaches are completely electric.
After seviceing our Webasto recently (been 2 years of running only to assist for hotwater), (Jon pointed to our smoke in Spearfish), we needed a new burn tube and ofcourse a nozzle and filter.
Nozzle was $14.00, burn tube was several hundred dollars from the source,(we live 35 miles from Vehicle Systems/Aquahot.) For the money spent on Webasto parts, it wiould take a many hours of running the genset to burn that much diesel.
Our cruise airs, and definitely the Webasto, makes more noise than our genset. We were even accused of running our genset during quiet hours one chilly Yellowstone night by the campground host (nazi), We needed a civil assist from the Grant Village local Ranger to help prove the noise from our coach was from the Webasto, and not the genset. since that time, we don't use the whining Wesbasto.
We often ask ourselves why Marathon installs 3 different froms of heating in the coach, its more cost, more weight, and more maintenance.
As Jon said, if you don't use the genset and really make it work, it will carbon up and not run well.
Jim and Chris
2001 Featherlite Vogue XLV 2 slide with Rivets-current coach, 1999 shell
Previous 22 years,
We have owned every kind of Prevost shell but an H3-40