Supposing that the BTU calc for the rads comes to about 50,000
(calculated at -3 degrees outside and with an extra 20% to be on the
safe side) and domestic HW is required, would the boiler below be a
good choice?


http://www.worcesterbosch.co.uk/inde...&con_id=125930

88,000 BTU max output, fully modulating etc, etc...

Cheers,
Matt