The Nightstor ® Boiler is also known as the GEC Nightstor ® the GEC Boiler the APECS Nightstor ® and the APECS boiler. This is because it was originally designed by GEC and manufactured by GEC Engineering (Accrington), the Nightstor ® was then manufactured by APECS therefore causing the name change.

1. Owners Manual For This Computer

The Nightstor ® Boiler works by storing heat from low-cost, off-peak electricity in a feolite core. When the user requires heat from the Nightstor ® boiler, an integral fan passes air over the core, then over an air-to-water heat exchanger in a closed loop.

This produces hot water which is circulated around the heating system by an integral pump. When, as may happen in the coldest weather, the energy is depleted from the core, boost can be provided by energising the element within the storage core, all easily controllable at the touch of a button.

The boilers can integrate with any form of low pressure hot water (LPHW) central heating system. In larger commercial applications, the boilers can be 'banked' together to provide any amount of heat that may be required. If correctly maintained the Nightstor ® boiler is expected to last for many years; in fact some units which are in excess of 25 years old are in very similar condition to when they were first installed.

Owners Manual For This Computer

The basic principle of energy storage has changed little since it was first introduced over fifty years ago, and some of the original heaters are working as efficiently today as when they were new.

My parents have had a GEC Nightstor for over 20 years and it has been a good system. Sadly the system was flushed out and after that there was banging from the pipes and it eventually cut out. They paid to have it flushed again and it worked for 11 days then same problem and nothing plumber could do. Anyway I believe the heat exchanger has been blocked because of the flushing which was exited from a radiator and not the drain in the boiler. I think if I turn of the valve next to the pump and open the drain in the boiler compartment and flush from the header tank this may clear the heat exchanger. Has anyone done this or had a similar problem.

There are two radiator circuits upstairs and downstairs (under the floor in concrete). I think the water is boiling so the pipes bang and the thermal trips cut off the fan. The pump is on position 3 and another issue may be the pump is not pumping enough? Thanks to Mike the boilerman for ringing me back and leaving a message - I wish he lived closer! Thanks for any advice etc John. Tony I cannot comment on the plumber he was a friend of my father.

Sadly my father passed away in January and I was hoping to get this fixed until we can replace the system with storage radiators. There are three 22m pipes into the boiler flow, return and vent. The vent (I think) has a 15mm tee to the header tank. The pipes go into the heat exchanger above the pump. We have now paid plumber twice Hyndburn Engineering once (stated boiler OK its the wet system) so if I get someone else in want to be sure they know what they are doing. Keygen. I was hoping someone may have had and fixed a similar problem. Yes is was Mike Bryant and I was so annoyed I missed his call but he left a long message with some suggestions but the distance is really to far.

His website is a useful resource and he sounds a real gentleman. Here some pictures.