Unusual Boiler Repairs
For Hertfordshire and Great
Unusual boilers are listed as below. They are mostly
thermal store types.
The concept of "Unusual Boilers" was first mentioned by
Mike Bryant at
Mike Bryant is a top independent boiler repair man for
Powermax boilers and Gledhill thermal stores.
"Most good things have a drawback though. Thermal stores
go wrong just like any other type of mechanical devices,
but finding a heating engineer to repair one is not so
easy as with a gas-fired heating system. Many heating
engineers are unwilling to deal with them because they
are powered by electricity, not gas (or oil), and they
are not electricians. Electricians also avoid them
because they are full of water and obviously for a
plumber or heating engineer to fix!" - By Mike Bryant
The charges in Great London
Herts Boilers offer unusual boiler repairs for Hertfordshire
and Great London. The charge is £90/hour for labour,
plus a £90 call-out charge.
Powermax Boiler Repairs
boilers, or simply called Powermax boilers, are special, even British Gas doesn't want to
get involved in repairing them. To us it is not difficult
at all to repair a Powermax boiler
providing (1) It is not with a leaking at cylinder body
which is beyond economical repair, and (2) The flue
integrity is still satisfied. We understand its
combustion, and its hydraulics, and particularly its
electronics, so we are confident on repairing them.
Powermax 155x FSS boiler
Don't believe someone says its parts are obsolete, most
of them are readily available. As we are a Powermax
specialist, we stock some common parts too.
Don't always believe someone said your Powermax boiler
is beyond economical repair. He might be not competent
on repairing it, and the reason he turned up could just
be for a chance to win a new boiler replacement.
Mike Bryant in Reading is an independent expert on
Powermax boilers. Here are his websites:
We have to say Powermax boilers do have a dark
reputation on safety operation. Here is a death accident
by a Powermax boiler at Oxford in 2005:
British Gas criticised over death
Gas poisoning: Two charged
Most Powermax boilers are sited in the central airing
cupboards of a flat or house, it is not easy and very
expansive to replace a Powermax boiler with a new boiler
for the reason of existing long flue run, and for the
new requirement of condensation run.
So we will try to fix your Powermax boilers, as long as
it is safe. Powermax boilers stopped production in 2004,
so the youngest Powermax boilers are over 12 years old
now, it might be wise to consider an boiler upgrade
Since January 2013, the regulations have been changed on
in void". If your Powermax boiler still has its flue
in void (concealed and can't inspected), it is deemed as unsafe and we will switch it
off even we can make it up and running after a repair.
You need to get a gas safe registered engineer to put inspection hatches along the
flue way to comply with the current standards.
Gledhill Thermal Store Repairs
stores seem to spook many repair engineers (maybe
because they are full of water and surrounded by electronics), but we find them
quite easy to fix. The majority of problems taking an
hour or two of labour plus parts.
Being plumbers and gas operatives, we are also
electricians, so we are in a favourite position to fix
Gledhill thermal stores.
BoilerMate 2000, SysteMate 2000, PulsaCoil 2000 and
PulsaCoil A-class are most popular
GulfStream 2000 and GulfStream A-Class are probably the
most complicated boilers manufactured so far. They are
still on thermal store principles, but each with an integrated
gas boiler and an electrical boiler as a whole unit. If you
have a GulfStream in your home (most likely new-built
flat) and you do need a
specialist to check and repair it. We have seen
significant number of this type of boilers being deemed
unsafe or beyond economic repairs by frontline gas
engineers for various wrong reasons. It is a shame when
engineers didn't admit they know little about these
boilers, but jumped into a conclusion which will cost
you fortune for a new system.
Their spare parts are also ready available from plumbing and
heating merchants, particularly from the manufacturer
Heat Interface Units (Hydraulic Interface
Interface Units (HIUs), or called Hydraulic Interface Units, are widely used in community
heating systems, for example a tower block with a
central boiler plant room, the energy of heating and hot
water is being
transferred to each flat by an interface.
An interface can be a model from these three common
makes - Akva, Termix and Vital, but they are all based
on Danfoss components.
We have experience on Danfoss interface repairs and
service. We stock some common parts for them, as most of
their parts are from mail orders.
The most components we replaced on HIU repairs are a
zone valve (VMT) for central heating and a thermostatic
valve (AVTB) or PTC controller for hot water.
This is Danfoss HIU parts supplier in the UK:
These HIUs are not difficult to repair, but their parts
Electric Boilers Installation
Electrical flow boilers, ranged from 4kW to 11kW, are
sometimes alternatives for gas boiler replacements.
Particularly in a flat, if a gas boiler like Keston, Maxol
or Powermax reaches a stage as beyond economical repairs, due
to its their long twin flue run, it is wise to get an electric
boiler replacement. Bear in mind electricity bills are
twice as much as gas bill.
Due to the limit of electrical cable sizes in domestic
properties, an electric boiler has a max 11kW heat
output (10mm), such a power output can only be suitable
for a flat or small house. Its installation and running
costs are significantly low compared with gas boilers,
but as said above, its running cost is much higher than
We are not only gas operatives but also electricians.
All the work related to a new electric boiler install or
replacement by us are up to standards on both plumbing
and electrical side.