Section 7 - Underfloor heating systems

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

7. Under floor heating systems