The history
The standard of underfloor heating has come a long way since the ‘hypocaust’ era in ancient Rome, but whilst systems have become more advanced, the actual concept is as sound as it ever was.
The hypocaust is one of the most ancient forms of heating and much like many other great inventions, it was created by the Romans over 2000 years ago.

Bathroom Blog Hypocaust image
This ancient underfloor heating system involved burning sticks and branches in underfloor open fire furnaces, made from brick and mortar. This produced heat which flowed through the space in the raised floor, thus heating the floor. Once cooled, the air escaped through flues in the wall and out of vents in the roof. This was particularly popular in Roman villas and public bathhouses.
This ancient innovation, along with modern technology, has helped produce what is now regarded as the most energy-efficient and cost-effective method for heating homes.
The bathroom in particular has since become a focal point for underfloor heating in many homes today. Rather than to heat baths like they did during the Roman era, underfloor heating warms up the bathroom tiles, providing great comfort for bare feet as well as removing dampness and condensation.
Radiant heating v conventional heating
Both ancient and today’s methods relied on the use of radiant heat. Radiant heating consists of “radiant energy” being emitted from a heat source. From the floor, the heat energy rises evenly to warm people and other objects in the room.

Underfloor or Radiant Heating
In a radiant heated home, feet warm up first which provides improved body circulation. This isn’t the case with conventional heating, which warms a room by intensely heating the air towards the ceiling, before cooling and falling back to a height where it can be felt. Physiologically, our bodies prefer warm feet with the temperature around our head being slightly cooler.
The presence of convection heat in a room circulates dust which can be less than beneficial to those suffering from respiratory ailments or allergies.

Typical Central Heating
Energy efficient and cost effective
The process of heating a home from the ground up has proved as energy efficient and cost-effective today as it did during the Roman era. Underfloor heating warms people and objects, rather than the air around the ceiling. This means greater energy efficiency and less costs.
With today’s system, the heater runs at full power until the floor has reached its set temperature. After this period, the heater needs to run at only half-power to maintain the set temperature. Simply put, the faster the floor heats-up, the cheaper the system is to run.
Underfloor heating requires less energy to heat a space than traditional radiators, reducing energy costs on average between 15% and 40%.
Sustainability and cleaner energy
As a result of climate change there have been several changes in political, social and economic circles. Builders and architects are now required to build and design homes that are highly insulated and require less energy.
The technology behind electric underfloor heating is ideally suited to take advantage of the shift to cleaner energy. It not only makes ecological sense, but economical sense to prepare for a new era of clean, renewable fuel by installing electric floor heating.