The unit is a wall hung unit, and I agree with everything you said.
I wish my home had a chimney to use a conventional boiler. The noise from the power vent located under our bedroom, and the odor of fuel led me to a condensing boiler with internal fan. It was quieter, but the maintenance issues are not worth the higher efficiency. Also, traditional boilers are more efficient today. Unfortunately, the builder chose power vent over chimney to save money. I can't think of any other reason.
It seems the greater the efficiency, whether boilers or refrigerators, the lower the useful life.
I don't know the life expectancy of this boiler, but it is covered under a replacement warranty. Time will tell.
Cobalt
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