Manual Wheel Diverter Valve for Controlling Hot Water Tank and Central Heating System All aspects of plumbing questions and answers, help, tips and information

[MonsterMarsh]

Trying to work out a problem with my mothers old 70's central heating system. The valve for splitting the hot water and the radiator circuit is a red wheel manual valve. It was turned fully closed in the summer by a relative (so boiler heated only the water cylinder). My question is should it be opened fully for winter hot water and radiators, or somewhere in the middle, or do I need to get somebody in to test and balance the system? I've tried various positions when visiting but am being told either rads too hot, or water. Appreciate any feedback. Thanks.

[proptech]

Hi MonsterMarsh

Without being on site, or having much more info about the system, it's not possible to say. I'm sure it would be very easy to sort out by trial and error if you lived there, and had the time.