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Glass &Windows Selection

Floor Heating Control Systems

Unlike conventional radiator systems, each room with underfloor heating is able to have its own thermostat which can be controlled independently, thus saving energy and money on running costs.

Standard Control
The water temperature flowing in the floor is set and adjusted by the end user to suit the occupants requirements, this coupled with individual room thermostats (including bathrooms), time control and a wiring centre provides a comprehensive control system. The end user will alter the flow temperature according to the external conditions, from approximately 35-40 deg C in spring and autumn to approximately 50-55 deg C in the winter.

Weather Compensation Control
Using this method the flow temperature is constantly being adjusted to suit the prevailing conditions. Once time and temperature settings have been programmed into the control unit no further input is required by the end user. The floor warming system will operate at optimum efficiency within the programmed inputs, providing the best possible comfort level at the lowest running costs.

Proponents of radiant-floor heating argue that someone normally comfortable at 72°F (22°C) will be comfortable in a building with radiant-floor heating kept at 68°F (20°C). If this is true, one would expect people with radiant-floor heating to keep their thermostats lower and thus realize significant energy savings. (See page 13 for further discussion.)

The second opportunity for energy savings with radiant-floor heating is through keeping the boiler temperature lower than is necessary with conventional baseboard hot water distribution. The typical European approach with radiant-floor heating is to circulate fairly low-temperature water on an almost-continuous basis, varying the water temperature as needed to satisfy the load. This practice might reduce heat loss into unconditioned space if boiler and piping are located in an unheated basement, but experts EBN spoke with suggest that the savings would be very small at best—especially because of the additional electricity consumption to operate pumps for long hours



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