Hi. I have three Berry Magicoal night storage heaters which i inherited when i moved house. My energy provider is Npower & advised a super tariff supply which gives me 5 hours cheap electricity during the night & 2 hours during the day. This is ideal as it provides ample heating/hot water for my family. I don't have a manual for the heaters, but am currently finding them less efficient. The top half of the heater remains hot whilst the bottom half is cold/luke warm. I have the input dial set at maximum & the output dial at minimum. I'm aware of the function of these two dials & their role in how the heaters work. This has always been ok in the past. My heaters also have a circular dial on the righthand side, at the bottom, that can be turned...but i'm not sure what these dials are for. The dial is numbered 1-6 minimum to maximum & are currently set with the dial "pointer" on maximum! What does this dial do? And does anyone have any advice? All would be gratefully recieved.

Alison Jane, October 2008

Thank you for you help & advice. Will give the bricks a clean & see if that makes a difference. Looks like i may have to invest in some new heaters some day soon though.

Alison Jane, October 2008

First the dial at the bottom on the right - I think that's a room thermostat, so where you set that should affect how the heater performs and needs to be used alongside the input/output controls.

The difference in heat between top and bottom - sounds as though the hot bricks are on their way out.

Unfortunately the Berry Magicoals are no longer made; they seem to have gone out of production 20-odd years ago. You can still get some spares for them, but if your heaters are that old they're likely past their best anyway.

Peter S, October 2008