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A comment on The five-year engineering feat Germany pulled off in months. Parent comment

Re:The five-year engineering feat Germany pulled off in months by Spooky23 on Sunday December 11, 2022 @03:31PM (#33947156)
There are lots of options out there. My parents have a 95% oil burner that works great for heat and hot water.

The gotcha is that the efficient units require more maintenance so in some situation it’s cheaper to be less efficient.

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Re:The five-year engineering feat Germany pulled off in months by jacquesm on Sunday December 11, 2022 @09:50PM (#33950306)
The latest generation (HE+) is a lot better than the ones before it which tended to erode the inner liner of the burner vessel into a nasty aluminum rich sludge that ended up clogging the drain. The newer ones do not have that (much thinner drains too).
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