I don't know if you found this page from a search, or if you came
here from my Gledhill-Repairs website, but either way, thanks for visiting.
I'm Mike Bryant, also known as Mike the Boilerman. (My main website is
in case you haven't already heard!)
I've built this site, and its sister sites, specifically to help owners of
Gledhill thermal stores and/or their plumbers identify faults
and fix them. I'm writing a page for each of their many models with a
description of what they do, how they work and a list of the specific
faults I've encountered on that particular model.
What IS a SysteMate?:
The Gledhill SysteMate is a thermal store, in other words a tank full of water heated by an ordinary
central heating boiler. The water never changes. It is used purely to
store heat energy from the boiler. The stored hot water is pumped around
the radiators to heat the house, and is used to heat domestic tap water
before it arrives at the hot taps. This allows hot water to taps and
showers at full mains pressure for high performance showering and faster
The SysteMate is an enhanced version of the BoilerMate, and the two are
easily confused. The difference is that the BoilerMate has to be fitted
with it's expansion tank at a higher level than the boiler and all the
radiators (because the BoilerMate fills the radiators and boiler with thermal
store water directly, and boilers/radiators fitted higher than the
BoilerMate could not fill up with water), while the SysteMate can be
fitted anywhere in the property. The SysteMate achieves this by separates the central heating water from the thermal store water using a
copper heating coil inside to transfer heat from the boiler primary into
the thermal store water, and making this and the radiator/boiler
circuits into a separate sealed system.
As far as I know there are only two versions of the SysteMate, and
confusingly they are both called SysteMate III. They look the same and
the only difference is in the electronics. One has one single, large,
integrated control board and the other has two separate boards. The
functionality is the same.
If my writings about your SysteMate don't help I'm happy to give email advice to anyone wanting it.
Gledhill themselves also offer first class telephone technical support
during normal office hours.
The number is 0906 611 0005 but take
care, it costs 60p a minute!
Once again, thanks for visiting.
Mike Bryant, AKA Mike the Boilerman.
First created 22nd March 2007
Last updated 29th November 2014