Designed, developed and hand built in the UK, the Thermotronic boiler represents the pinnacle of engineered efficiency.

Radiant (formally HCC) were the first company in the UK to develop oil fired condensing boiler technology, some twelve years ago.  Since then constant improvements to the design and performance of these exceptional heating machines has kept Radiant at the forefront of condensing boiler technology.

Why Floor Standing?

Fundamentally all oil-fired burners are on/off devices i.e. they cannot turn down the heat in the same way a modern gas boiler can. If the water content of the heat exchanger were low (wall hung type) it would reach temperature very quickly resulting in many more on/off cycles for the burner, leading to a cumulative waste of fuel and operating inefficiency. This is overcome in the Thermotronic boiler by using only large water capacity heat exchangers which are much more fuel efficient and therefore more economic to run.  Because of the size of heat exchanger, all Thermotronic boilers are floor standing.

Design and Output Range

The output of the Thermotronic boilers range from upto 20 kW through to 80kW, (68,000 btu/hr 273,000 btu/hr). So there is certain to be a boiler that fits your precise requirements.  There are two design types within this range; The T2, a two stage heat exchanger for the smaller outputs (20 to 30kW) and the T3, a single stage heat exchanger for the larger outputs (40 to 80kW).  All the condensing heat exchangers are made from high grade (316L) stainless steel.  In all the time we have been manufacturing these boilers we have never had to replace a condensing heat exchanger. You can be confident they are built for a lifetime and will return your investment many times over.  The construction materials (build quality) of all Thermotronic boilers far exceed that of other boilers.  This is evident in the substantial total weight of our boilers because they are built to last in excess of 20 years!

Efficiency and the Environment

Radiant Thermotronic boilers have an ultra-high efficiency rating: in the order of 92% (GCV) nominal and 97% peak.  Emission of CO gasses is so low (nominally less than 25 parts per million) that it exceeds all current European Standards and is significantly better than conventional boilers making the Thermotronic an environmentally friendly option.

However, burning the fuel and converting it to useful energy is only half the story.  Even greater annual operating efficiencies can be achieved through using intelligent management control systems. All Radiant Thermotronic boilers are available with the option of a Siemens weather compensation and boiler optimisation controller. This precise form of control virtually eliminates the waste of energy associated with a conventionally controlled system.

Installation Advantages

All Thermotronic boilers are extremely quiet when operating and because of this they can be sited almost anywhere. Standard plastic pipes (either 82mm or 110mm soil and vent pipe) is all that is required to flue these boilers and their versatility is such that either a balanced flue, a conventional type flue or a monodraught type flue can be employed at incredibly low costs. Thermotronic boilers can also be connected to any type of hydraulic heating system design making them ideal in replacement situations as well as for new systems.

Guarantees

All Thermotronic boilers are built by hand and individually tested. The heat exchangers are guaranteed for five years against a manufacturing defect and all other component parts of the boiler are guaranteed for 12 months from the date of purchase.  (These guarantees do not affect your statutory rights.)