Combi boiler water preheating

[Malc]

Our venerable Baxi Bermuda is reaching the end of its life and I was thinking of replacing it with something a bit more modern like a condensing combi boiler such as this

I'd also like to put on some solar water heating to the header tank in the attic but will I be able to use this tank to feed the boiler or will it have to run off mains pressure?

[ARWadsworth]

Typing "solar combi" into a google search may help

Adam

[Roger Hersee]

Solar heating will give a poor return on investment. You can do it with a combi. You need a pressurised storage tank.