On Thursday, 9 April 2020 13:34:19 UTC+1, Dave Plowman (News) wrote:
In article ,
Brian Reay wrote:
We've had one major issue- fixed either under warranty or the service
contract, I'm not sure which, there was another minor problem but I
think that was related to the other one. At the last regular check up,
the engineer who we see almost every year and have got to know a bit,
commented it was as good as new. Certainly it seems to work well enough.

Seem odd to pay a great deal of money to be told everything is OK once a
year? ;-)

Navien heat exchangers do not need cleaning. All self cleaning boilers need is flue gas sensors to determine of the burner is out. If so it is flagged on the display, or if so bad it locks out.

EVs do not need servicing. But the rolling parts do need a walk around. The MOT does that.