Integrated heat banks are the only devices that give full CH/DHW
backup.

Not true, some combis do it now.

Which model. I am a pro, not amateur, and know of no combi that has an
integral electric backup.

C1-5070 and C1-7090 - took me ages to find the brochure having just moved.
You could be right though - looks like it might only be for the hot water.


Chris

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