Well, I took a look at the blog and dear me, there is an awful lot of invective flying about. I was somewhat surprised, as when I had an issue with my Webasto BK were very polite and helpful and from what I recall conversations with them were lighthearted and friendly; and they replaced my burner under warranty without quibble, putting me in contact with Foxton Boat Services, Sam doing the job the same day on their behalf....
Touch wood, it's been running fine ever since....
A different engineer who services Webasto did tell me that whenever he gets a Webasto in for a 'de-coke' he alters the fan speed profile away from the original factory settings to make it more 'red' tolerant.
If somebody is implying that BK Webastos are Chinese clones, I'd be mildly surprised, unless the cloning goes as far as technical data, bar code stickers and other bits 'n' pieces written in German.