In article ,
BigWallop wrote:
A normal central heating pump can be fitted in the outlet of the hot
water tank to increase the flow.

Surely you need a bronze pump not a normal £30 one??

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm