In my opinion having used the Alde heating and hot water system for six months on several trips including one trip of a little over two months there is no design issue with the Alde system. It or versions of it have been in use for a number of years in Europe and in several other RV manufacturers products in the US.
There are issues, however, which for the most part can be rectified easily.
There appears to be a tendency for the Alde glycol/water mix in the heating system to settle out after the first fill up at the factory and possibly even the dealers. Therefore, an owner must watch the reservoir for the first couple of weeks to make sure the fluid is at proper storage and then usage levels. After two weeks we have not had to add any fluid and should be good for two years.
There was, not sure if it still exists, a lack of training done by the factory of dealer technicians. I've been told much of this has been corrected, but seeing as I have not contacted nor used a dealer I am not sure.
The heating aspect of this is by far the best heat we have ever had in an AS, and this Classic is our fourth AS. Once the system gets the trailer up to temperature it stays there, and being radiant heat everything in the trailer is at the same set temperature.
The hot water system is part of the Alde and there are numerous threads and lots of information on it in the Classic section of these Forums. If interested one can check there.
As I stated this is our forth AS, we would not want to return to the forced hot air system.
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2020 28' Twin Flying Cloud
2021 F350 6.7 King Ranch
USAF Master Training Instructor (TI) & (MTI)- 68-72
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