Do I need my old water tank

[sirrius2]

I fitted a new larger water heater powered on its own circuit for my hot water and showers.

I also fitted a new log burner in tandem with my oil fired central heating system. Both work through a centralizer. The problem is that central heating is still warming the old water tank up which presumably takes away heat from my central heating.

Any ideas would be appreciated.

Thanks

 

[dcawkwell]

You right. If the central heating is on it shouldnt be heating
the hot water tank unless the hot water tank thermostat is calling
for heat. I hope you have a hot water tank thermostat.