First of all, thanks for visiting.
I'm Mike Bryant, also known as Mike the Boilerman. My main website is
I've built this site specifically to help owners of
Gledhill thermal stores understand them better, and in particular, identify
common faults and how to fix them.
Gledhill make conventional hot water cylinders, and are also brand
leaders in thermal store units with a series of product ranges such as PulsaCoil,
BoilerMate, SysteMate, ElectraMate and GulfStream.
I've no connection with Gledhill Ltd other than having a working knowledge
of their thermal store products and being one of the engineers
they will recommend (should you ring and ask them who can
repair yours), so this set of websites is no more than a collection of
my own comments and observations. I publish it to both generate work for
myself and as a free public service.
What IS a 'thermal store', exactly?
Fundamentally its a tank full of hot water stored at low pressure, but instead of
being sent directly to the hot taps, the hot water is used to indirectly heat
mains water on it's way to the hot taps, and in sometimes to heat the
central heating radiators too. The point of this is to give high (mains)
pressure at the hot taps, and in the case of the SysteMate, to allow use
of cheap night rate electricity to run conventional central heating
radiators during the day. The water inside the thermal store never
What is a PulsaCoil?
The PulsaCoil is the basic Gledhill Thermal Store, heated by
night-rate electricity and providing mains pressure hot water only. See www.pulsacoil-repairs.co.uk
And the ElectraMate?
Same as the PulsaCoil but runs radiators too. See
Similar to ElectraMate but heated directly by a normal gas or oil
boiler. Configured as an open-vented system, i.e. with a small header
tank to fill the boiler, rads and the thermal store. See www.boilermate-repairs.co.uk
Same as BoilerMate but the thermal store is heated indirectly by the
boiler via a coil of pipe, i.e. the boiler water circuit is separated
from the thermal store water, and pressurised as a sealed system. This
allows radiators to be installed above the thermal store. See
Same as a SysteMate but with a gas boiler built into it instead of
being a separate appliance. See www.gulfstream-repairs.co.uk
For more details on each appliance, click on the links. At the moment
I've only links to my PulsaCoil and BoilerMate sites. The others will be
If you aren't that interested and would just like me to come around
and fix yours, then my contact details are here.
I mostly work locally around Reading, Berkshire but I'll travel
anywhere in the UK provided my traveling time is paid for at my normal
hourly rate. If you think you are too far away and would prefer a local
engineer then Gledhill will usually nominate someone if you ring them and ask for a
recommendation. Naturally if you ask for a recommendation in Berkshire
they'll tell you to call me :-) Gledhill's phone number is 01253 474401
Finally, here's a link to Gledhill's own website www.gledhill.net
Once again, thanks for visiting.
Mike Bryant, AKA Mike the Boilerman.
First published 24/01/07
last updated 28/01/07