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Underfloor heating

Joisted floor constructions

Joisted floors are suspended timber floors that use joists to support the floor deck. The underfloor heating system lies either between or straddling the joists.

Nu-Heat’s range is designed for use within a suspended timber joisted floor. To allow other trades to get on with work on upper floors, Nu-Heat’s patented ClippaPlate® can be installed from below so that the floor deck can be fitted early on, prior to the underfloor heating tube
being installed.

Alternatively, by installing ClippaPlate® over joists and then laying the floor
deck, trades can work quickly without damaging the underfloor heating and with a reduction in the potential Health and Safety issues relating to open floors.

How it works

The flexibility of Nu-Heat’s Fastflo® tubing allows installation in suspended
timber floors from either above, before the deck is laid or from below, after the deck has been laid, with no additional floor height build up. The tubing is fed through pre-notched or drilled joists and held securely with Nu-Heat’s patented aluminium ClippaPlate®, allowing the system to be fixed with little effort.

The ClippaPlate® system uses highly conductive aluminium heat spreader plates to rapidly transfer heat from the Fastflo® pipe through the floor deck into the room above, efficiently and effectively.

Specification considerations
  • Dry floor construction
  • Medium heat output
  • Exceptionally light
  • Medium response

Installation considerations
  • Installation over joists before deck
    is installed or between joists after
    deck is installed
  • Floor components fitted at first-fix stage
  • Requires joist notching or drilling
  • Floor coverings can be fitted as soon as the deck is in place

Read the underfloor heating installation manual

 

TPBA14
Suspended timber upper floor with ClippaPlate® installed from above or below securing 14mm FastFlo® tube

This construction is aided by the flexibility of Nu-Heat Fastflo® tubing which can be installed from below, by pulling loops into the floor bays.

View info sheet
Download installation instructions

DPJG14
Ground floor joists with low profile diffuser panels installed between, securing 14mm FastFlo® tube

Suitable for ground floor applications. Heat diffuser plates located in 25mm deep EHD polystyrene panels both increase heat output and reduce response time. They offer maximum flexibility during installation and can be easily snapped to fit into any space.

View info sheet

DPJ14
14mm Fastflo® in low-profile diffuser panels installed between first floor
joists or battens

Suitable for 1st/2nd floor applications.
Heat diffuser plates located in 25mm deep EHD polystyrene panels both increase heat output and reduce response time. They offer maximum flexibility during installation and can be easily snapped to fit into any space.

View info sheet

TSG14
Suspended timber ground floor with a sand and cement screed between battens with ClipTrack securing 14mm FastFlo® tube

Suitable for ground floor applications. In this construction the heating tube is installed within a sand and cement “biscuit” screed in a suspended timber floor. Benefits include high output, ease and flexibility of installation, and low cost.

View info sheet

TS14
Suspended timber upper floor with a sand and cement screed between battens with Cliptrack securing 14mm FastFlo® tube

Suitable for 1st/2nd floor applications.
In this construction the heating tube is installed within a sand and cement screed in a suspended timber floor. Benefits include high output, ease and flexibility of installation, and low cost.

View info sheet

TPBAK14
Suspended timber upper floor joists with ClippaPlate® installed from above or below securing 14mm FastFlo® tube and Knauf FHB25 for superior heat output and acoustic performance

Suitable for 1st/2nd floor applications. The use of Knauf FHB25 has acoustic benefits as well as increasing heat output from the floor.

View info sheet

DPJK14
Suspended timber upper floor joists with low profile diffuser panels securing 14mm FastFlo® tube and Knauf FHB25 for superior heat output and acoustic performance

Suitable for 1st/2nd floor applications.
Heat diffuser plates located in 25mm deep EHD polystyrene panels both increase heat output and reduce response time. They offer maximum flexibility during installation and can be easily snapped to fit into any space.

View info sheet

DPJGK14
Suspended timber ground floor joists with low profile diffuser panels securing 14mm FastFlo® tube and Knauf FHB25 for superior heat output and acoustic performance

Suitable for ground floor applications.
Heat diffuser plates located in 25mm deep EHD polystyrene panels both increase heat output and reduce response time. They offer maximum flexibility during installation and can be easily snapped to fit into any space.

View info sheet


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