Radiator systems heat rooms by convection, leading to stratification of the warmed air. This leads to a concentration of hot air near the ceiling, whilst leaving a cooler temperature zone at floor level. As well as being wasteful of heat, the variable temperature levels also cause convection draughts that cool occupants further and carry dust particles.
Even the smartest looking radiators take up valuable wall space, limiting how the room can be used and furnished. They run at high temperatures, are subsequently very hot to touch and are rarely children or elderly person friendly.
After installation, as well as regular boiler servicing, radiators should be checked and maintained periodically. The average life of a radiator is about 20 years.
Underfloor heating systems work at low temperatures, radiating a gentle, evenly distributed heat from the floor. This provides comfortable warmth for occupants, with a floor that is cosily warm, but never too hot to walk on. No air stratification occurs, so there are no wasteful pockets of hot air at ceiling level, typically saving 15% in fuel costs*. Convection draughts are eliminated, making the environment less dust laden and much healthier.
As the system is hidden in the floor, useful wallspace is freed so that furniture can be placed anywhere. Any floor covering can be used - carpet, wood, laminate, vinyl, or tile. Indeed, underfloor heating makes hardwearing, contemporary, tiled or stone floors very comfortable, even in the depths of winter.
For low temperature hot water underfloor systems, the only maintenance required after full installation is that of regular boiler servicing. If connected to a ground-source heat pump, no maintenance is required at all. Once installed, electric underfloor systems do not require maintenance either.
Because they run at low temperatures, hot water underfloor heating systems are suitable for most heat sources, especially energy efficient condensing boilers and ground source heat pumps.
Low temperature hot water underfloor heating can always be used in conjunction with towel warmers and radiators. It is also suitable for small-scale projects, such as extensions and conservatories.
* Source BSRIA Application Guide AG 12/2001