Kidd Condensing Boilers

Archie Kidd (Thermal) Ltd –
‘they don’t make them like this anymore’:

2019 Note:  the comment above has sadly become true – this brilliant product is no longer manufactured due to the passing of the inventor…..  for spares see footnote.

vintage Archie Kidd boiler installations logo

While the domestic boiler industry has been busy developing complex new condensing boilers, with aluminium downward firing heat exchangers and NASA grade electronics, a boiler manufacturer in Wiltshire has been watching with bemusement. Because there is nothing ‘new’ in condensing boiler technology.

During his demonstration to a live audience at the Institute of Mechanical Engineers in London in 1982, Archie Kidd described how his ‘Model 1’ condensing boiler could achieve huge energy savings whilst having a projected design life of 25 -30 years.

Archie Kidd, inventor of Kidd boilers

Some 34 years on, Archie Kidd’s claims proved to be correct. Most of his early boilers are still earning their keep and the company (now run by his son, Adam) continues to manufacture the design today. A few changes have been made over the intervening years, the most notable being a change in colour, from red to white.

What surprises industry professionals is that these superbly engineered but almost electronics-free boilers are amongst the most efficient on the market in 2012 (oil fired units are SEDBUK A rated).

The Archie Kidd range covers models for medium sized houses starting at 90,000Btu, up to boilers for very large commercial premises. All the boilers are floor standing – and will not fit inside a kitchen unit! They are ideally located in a garage or utility room.

Kidd boiler installations in Tonbridge, Oxted and Edenbridge, KentWhen one takes into account the longevity and reliability track record of these units, they represent an excellent investment.   However, this is before you factor in ‘standing losses’, an important calculation – not fully anticipated in the SEDBUK test routine. The Kidd design is highly insulated, which means the boiler fires less often. Even the circulation pump is intentionally located within the insulated heatstore area, to minimise heat loss from pump body and capture electrically created heat from the motor windings.

They are solid engineering; no pointless adornments, designed to do the job, and made to last.

Where there are problems with flues, Kidd can design and manufacture a bespoke system out of aluminium; this has been particularly useful with listed buildings.

Available in oil or gas versions, we are your regional experts. We’ve carried out Kidd boiler installations across Kent and the surrounding areas.

If your property needs a reliable but simple boiler we would be pleased to make a site visit and advise you. We can provide boiler installation for Edenbridge and Oxted plus any of the surrounding areas. Contact us to arrange a visit or to find out more information.

Please note that we only usually offer servicing and repairs to Kidd units we have installed.

2016: Important Update

We are sad to report that Mr MA Kidd passed away, aged 73, in February 2016.

As far as we know, this is the final chapter in the history of Kidd Boilers.

Adam Kidd was a great character, a strong thinker, never one to be swayed by popular opinion, with a twinkle of eccentricity, and always fascinating to talk to.

Above all he was an honest, honourable man, dedicated to reducing unnecessary wastage of fuel and materials – our industry will be a smaller, less exciting place without him.

SD, March 2016

Archie Kidd Parts and Servicing:

Two of the original Kidd Boilers team offer servicing in the Wiltshire area, and possibly slightly further afield by arrangement.

They also have a stock of some Kidd boiler parts, call Baden or Tom on 01380 850764.

SD, November 2018

Customer Testimonials

Excellent Work

Excellent work , the workers were very efficient, considerate and tidy. They worked with the least disruption possible for an elderly lady. Any unexpected problem was dealt with safely and professionally. The finished heating is to a high standard. K.T. Kent

Jennie 05/05/2017

Very good job

The job was very professionally undertaken on time and budget with no adverse issues raised. Customer satisfaction appeared to be a high priority.

Martin, Kent 25/04/2017


Truly excellent, as much technically as aesthetic: clean, prompt, going well beyond expectations.

Nicholas, Kent 14/04/2017

Commercial plumbing

A small to medium sized company capable of installing & maintaining a highly technical modernisation of our heating & h/w systems. The planning, execution & result was truly ‘excellent’.

A J, Surrey 04/04/2017

Very knowledgeable

We needed a replacement boiler & Simon talked us through the options, which manufacturer & what size to go for & saw through the installation, not leaving until he was satisfied that all was in order. All in all very, competent and professional.

Stephen, Kent 16/02/2017

Highly recommended

Not the cheapest but very knowledgeable which gave me confidence that the job would be well done and correctly done. I was not disappointed.

Geoffrey, Kent 06/02/2017

Good standard of work with an ongoing commitment to customer satisfaction

This firm installed a 12 zone Honeywell Evohome central heating and hot water control system for us in October 2014. The quotation was clear and detailed, and the price reasonable. The installation work was personally overseen by the boss, Simon, who also set the rather complex (but powerful) wireless control system to work and gave clear advice on how to get the best from it. He had in-depth knowledge and experience of the control system that is probably second to none. The firm also installed and connected to our boiler a plinth fan heater nicely hidden under a kitchen cupboard Read more…

Mike 28/11/2016

Employed this trader many times

Started and finished on time. Workmanship as good as ever. prices reasonable.

Peter, Surrey 24/05/2016

Smart solution, neatly implemented

Great technical solution to the tricky replacement of a 1980’s warm air unit. Starting with a clear and comprehensive quotation. Careful and tidy installation with minimal disruption. Excellent communication throughout the work.

Martin, Surrey 21/03/2016

Clean + tidy

HWCH installed our boiler a few years ago and have looked after it ever since so I was happy to leave them in the house unaccompanied. We came home to find the installation complete and no mess or trace they had been.

Bryan, London 15/12/2015

Prompt and efficient. Very professional.

My son recommended this firm as I was very apprehensive about having a new boiler. Mr Davies was very clean and helpful and explained everything. The two men who did must of the work were efficient, polite , clean and considerate to me . As far as I can tell I have an efficient job carried out in one long day which helped me.

Jean, Surrey 19/11/2015

Very good job – as always

We have used the company for many years for 2 rental properties & our family home. We cannot fault them.

Stephen, Kent 19/06/2015

Knowledgeable, friendly and efficient

HW and CH knowledgeable, friendly and efficient company we would certainly recommend them.

John, Kent 01/06/2015

Reliable & professional company

Hot Water & Central Heating responded very promptly & installed a new boiler in a quite awkward location. Very helpful

Jerry, London 27/05/2015

Professional & efficient

I have known HW & CH for several years. They installed two large boilers in a church and hall and maintain them annually. I gave recently used them at my home where they did a very clean, neat and efficient job. Supplied excellent product and were very professional.

David, Kent 16/01/2015

Diligent & Efficient

Simon of HWCH takes his job very seriously but is a pleasure to deal with. He assessed our (complicated) situation carefully, recommended the right solution and carried it out promptly and efficiently.

Jay, London 15/01/2015

Expert & professional installation

An intimate knowledge of a rather complex Honeywell Evohome heating control product, combined with an excellent installation crew on the day resulted in a very satisfactory installation. Some tricky rerouting of underfloor pipework was accomplished without fuss, mess or extra charge, highly recommended.

Richard, East Sussex 04/07/2014

Very impressed

Very impressed with work rate and efficiency. Would have no hesitation in recommending them.

Neville, West Sussex 16/03/2014