Would it be ok to place a 2 port valve in the boiler return as suggested in the following webpage?
http://www.gasman.fsbusiness.co.uk/gravity_hot_water_pumped_heating.htm
My boiler has 4 pipes from it, 2 for supply and return for pumped heating, and 2 for supply and return of hot water. If I were to get this converted to fully pumped it would mean two of the pipes would not be used? So would need to get 3 port valve fitted after pump then take one pipe off to heating and one off to cylinder?
http://www.gasman.fsbusiness.co.uk/gravity_hot_water_pumped_heating.htm
My boiler has 4 pipes from it, 2 for supply and return for pumped heating, and 2 for supply and return of hot water. If I were to get this converted to fully pumped it would mean two of the pipes would not be used? So would need to get 3 port valve fitted after pump then take one pipe off to heating and one off to cylinder?