History of Multibton

The modern embedded underfloor heating system using non-corrodible pipework was developed by MULTIBETON some 50 years ago in 1961.

The initial environmental technology was carried out by Dr. Ing Kollmar with other specialists employed on the development of the polymer pipe and screed specifications.

To ensure total quality control MULTIBETON manufactured all of its own key products and adopted a strict policy of only installing through a network of fully trained associated companies.
The system became extremely popular and with it’s growth spread into use in all other European countries.

In the UK the proven practice of selling a complete system and not just materials has been strictly followed to enable quality control to be monitored through all aspects of the work to the complete satisfaction of the client. To this end MULTIBETON have built a solid reputation for quality and service since the company was established in the UK in 1976.

Most areas of the market have been served from such diverse building uses as Zoos, Churches, Workshops, Offices, Atrias, Schools, Supermarkets, Car Showrooms, Dog Kennels and Shopping Centres. The whole of the United Kingdom is served by MULTIBETON and it’s network of regional agents.

To date in excess of 3.0 million m² of floor heating have been completed in the UK from a 6 m² conservatory through to a 13,500 m² Secondary School in Coventry.
A complete design and installation service is offered backed by the facility of screeding if required.

In addition to embedded radiant systems MULTIBETON offers a range of floor convectors with roll top grilles. Based around a one piece aluminium extrusion these are manufactured in a variety of styles including both natural and fan assisted. Heating coils are available for both hot water and electric and units can be manufactured individually or in multiples to form a continuous perimeter system including mitered corners.


Gaius Sergius Orata
The re-discoverer of central heating

Gone and now forgotten we no longer know who it was, who first thought of the idea of warming buildings by central heating. But in the palace of the kings of Arzava, whose kingdom in the South West of Anatolia reached its golden age about 1200 BC, ducts have been discovered which suggest that there must have been a central heating system in use.

In the North of China and Tibet too a form of pavement and Underfloor heating using braziers and known as Ti-Kang and Koa-Kang already existed over 4500 years ago. In the second century A.D. a Roman fish and oyster breeder, Gaius Sergius Orata by name, re-discovered the principles of central heating and first used them for heating bath houses. His method used smoke and heated air from a fire lit at the side passing through Underfloor heating ducts laid beneath a raised floor. This “Hypocaust” system (from the Greek term meaning “heating from below”) was later extended by the Romans to whole buildings.

With the use of modern materials and techniques MULTIBETON have pioneered and developed the low temperature water underfloor heating system as we know it today.


Physiology of Heating

The purpose of every heating system is to provide comfortable indoor conditions, whereby physiological criteria are fulfilled. For example it is accepted that to be comfortable within a given environment it is necessary for a greater degree of warmth to be provided to the lower part of the body than the upper (warm feet – cool head). It is equally important that there is a low temperature difference between the temperature of the air within the room and the surface temperature of the surrounding walls.


The requirements for comfortable room surroundings are represented in graph form by the vertical temperature profile “ideal curve” shown in figure 1. The various profiles show the temperature layers for typical types of heating systems, from floor to ceiling. If we compare the temperature profiles of various heating systems occurring in practice, with the theoretical optimum profile No 1 then we sometimes find pronounced variations. The temperature profile for Underfloor heating is the only curve which almost perfectly coincides with the ideal.

By comparison heating by radiators only causes unnecessary high temperatures at head and ceiling level, while the floor remains cold to the feet.

Expensive carpets are often used to counter the cold floor effect often experienced in many buildings whilst with Underfloor heating you are free to choose from a wider selection of flooring materials.

Radiant floor heating makes it possible to achieve comfort conditions at lower air temperatures than would otherwise be the case. This reduces energy consumption and provides a comfortable and healthy environment where people need it.

With today’s higher standards of insulation for our buildings high temperature radiators of smaller and smaller sizes can no longer provide an even distribution of heat within the space, whilst Underfloor heating with low operating and surface temperatures can provide a cost effective solution with lower energy consumption of our buildings.

Figure No1

1: Therorectical ideal heating curve.

2: MULTIBETON underfloor heating.

3: Heating by radiators internal walls.


4: Heating by radiators external walls.

5: Warm air heating.


6: Ceiling heating.