A couple of weeks ago, I asked if anyone knew if the latest Honeywell L7224U oil
burner control box would hold its memory during a power failure. Well, I
installed the box today, and I can now report that after a 4 hour power
interruption (I programmed it this morning and installed it this afternoon), the
box held all of its settings exactly as I programmed them. It is also much more
accurate and easier to use than the older L8124 series of control boxes, along
with having a programmable differential on the high side as well as on the low
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