hi, i have small house with a bathroom and bedroom radiators and a hot water cylinder on the first floor. the central heating system has a big water tank in the loft and also a little tank next to it both are vented the gas boiler is in the downstairs kitchen appox 1500 up from the floor it has two pipes coming out the top going into the ceiling. the hot water cylinder has a pump and valve with two pipes going to it and one connecting to the cylinder can i move the cylinder/reroute pipes pump and valve to the ground floor ie below the height of the boiler and also 3meters away from the boiler if i could do this , would i have get a different pump or change the pipe size thank you