problem with heating

[fergie656]

I've installed a pressurised system, but kept the heating on gravity, by using the old hot water cylinder as storage for heating the water for the heating, and got a pump on the flow to the radiators, and got the flow and return from the coal fire linked into the cylinder aswell, problem is, once the cylinder heats up, the pump goes on, im getting heat going to the radiators but the temperature just drops off to hardly any heat, its not working properly and i dont know why, so any help would be appreciated, thanks

 

[Gray0689]

You should not have a solid fuel burner going to a pressurised cylinder it's very bad obviously your not a plumber it breaks all rules get it out

 

[fergie656]

its not a pressurised cylinder, its vented, the coil is pressurised off the boiler

 

[Gray0689]

its not a pressurised cylinder, its vented, the coil is pressurised off the boiler

So you have an open vented cylinder but the heating is pressurised?
Is the solid fuel heat sorce going to the cylinder on a separate coil?
And not tied in to heating side?