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This section provides guidance on the specification of underfloor heating systems in dwellings.
7.1 - Scope of guidance
The guidance in this section covers systems that use hot water as the energy carrier and those that rely on electric heating elements. It should be used in conjunction with the guidance on central heating systems in the fuel-based sections of this guide on gas-fired, oil-fired, solid-fuel or electric heating systems.
Underfloor heating in new dwellings should meet all of the following conditions:
The minimum provisions for control of the system and safe operating temperatures as given in Table 26 should be met.
AND
The minimum provisions for floor insulation and system design to minimise distribution losses should be met as outlined in Table 27.
AND
For electric underfloor heating systems in new dwellings the minimum provisions for construction and controls as set out in Table 28 as applicable to the type of system.
Table 26
Table 26A
Table 27
Table 27A
Table 28
Table 28A
Energy External insulationCavity wall insulationUnderfloor insulationUnderfloor heatingUnderfloor heating pipesAir to water heat pumpAir to air heat pumpAir to ground heat pumpGas boilerCeiling insulationRoof insulationSuspended floorControlsTime and temperatureZone controlGround conditionsSound insulationTongue and grooveEnergy grantsBuilding energy ratingEnergy performance certificateHome energy assessmentWater pumpWater tankBead insulationPumped insulationExternal wall insulationFloor tilesElectric showersWater membraneWater vapour membraneVapour control layerPitchPilingFire stoppingPIPlanning permissionPlumbingPlanningPlasterboardEmployers liabilityPLPlugsStructurally insulated panelsSolar panelsFireline boardELLight gauge steel
