Underfloor Heating

Underfloor heating: the benefits

Modern underfloor heating using a heat pump to circulate warm water through the floor slab is becoming increasingly popular.

There are many reasons for this including:
  • UFH creates the most comfortable temperature profile within a room
  • UFH minimises heat losses at the ceiling
  • It provides an even spread of temperature across the floor
  • It is silent, invisible and there are no grilles, radiators or air conditioning units in living space
  • It produces minimal air movements
  • It provides the same comfort level at lower temperatures, providing significant savings in fuel costs
  • Virtually maintenance free
  • No ventilation shafts or covers and is consequently low security risk (excellent for public or high security areas)
  • Very cost effective for very large area or areas with high-ceilings e.g. factories, warehousing, department stores
  • Hygienic as there is no spread of diseases, allergens or spores by moving air
  • Not affected by water spills or dirt and can therefore be used in contaminated areas
  • Using a heat pump as a heat source makes such a system much more affordable to run

Underfloor heating systems

All systems have the following components:
  • Heat source
  • Closed network of pipes that carry the hot water and provide the heat to the required area
  • Control valves (manifold) that alter the flow rate in the different loops to control the room temperature
  • Controller to operate the control valves
  • Room thermostat for setting the room temperature and to sense the actual temperature

Types of Systems

IN SLAB - For new homes, does not need changes to slab construction

TACKER SYSTEM- Ideal for in-screed system and fast response times

DIFFUSION PLATES- Ideal for second storey or on existing slab or sprung floor (on battens)

Which system to choose

Diffusion Plates System

New build (no change in construction design required)

Refurbishments (dry system)

Suspended timber floors on joists

Light weight system

Fully zoned system possible (zones can be individually ON or OFF)

Quicker response time than Tacker

Tacker System

New build (room heights may need to be adjusted)

Screed application (over pour / topping)

Fully zoned system possible (zones can be individually ON or OFF)

Quicker response time than In-Slab

Includes floor insulation (BASIX)

In Slab System

New build (no change in construction design required)

Monolith slab construction

Limited operating zones (slab ON or OFF)

Long response times