ThermRite PRO Overlay Underfloor Heating Kits – 20mm Panels

Shop complete ThermRite PRO overlay underfloor heating kits with 20mm dual-purpose panels at ThermRite Shop. These low-profile water underfloor heating kits are designed for retrofit projects, renovations, extensions and rooms where a screeded floor build-up is not practical.

This collection includes ThermRite PRO overlay UFH kits from 20m² to 180m², using 20mm EPS400 foil-faced panels with pipe laid at 150mm centres. The 20mm panel system is designed for strong heat output, fast dry installation and minimal floor height increase.

Each kit brings together the key components required for a practical warm water underfloor heating installation, including ThermRite PRO 20mm overlay panels, UFH pipe, manifold components and pump pack options, depending on the kit size.

Key Benefits of ThermRite PRO 20mm Overlay UFH Kits

Low-Profile 20mm Panel System

The ThermRite PRO 20mm panel is ideal where you need water underfloor heating with minimal floor height increase, making it a practical choice for retrofit and renovation projects.

Designed for 16mm Pipe at 150mm Centres

These kits use 20mm ThermRite PRO panels designed for 16mm UFH pipe at 150mm pipe centres, helping deliver strong heat output across the floor area.

Dual-Purpose Floor Finish Compatibility

ThermRite PRO panels are suitable for a range of floor finishes when installed correctly, including tile, vinyl, laminate and wood flooring systems.

EPS400 High-Strength Construction

The panels are made from EPS400 insulation, providing a strong, stable overlay board for domestic and suitable light commercial UFH installations.

Foil-Faced Heat Transfer Layer

A bonded aluminium foil layer helps spread heat efficiently across the panel surface for improved underfloor heating performance.

No Screed Required

Overlay UFH panels are designed for dry installation over suitable existing floors, helping reduce installation time compared with traditional in-screed systems.

What’s Included in a ThermRite PRO Overlay Heating Kit?

A complete ThermRite PRO overlay underfloor heating kit normally includes the main components needed for a warm water UFH installation. The exact contents can vary depending on the kit size and system requirements, so always check the individual product listing before ordering.

Component What It Does Typical Use
ThermRite PRO 20mm Panels Hold the UFH pipe in pre-formed grooves while helping transfer heat through the floor. Laid over a suitable existing floor as part of a low-profile overlay UFH system.
UFH Pipe Carries warm water through the underfloor heating circuits. Pressed into the panel grooves at the designed pipe spacing.
Manifold Components Distribute water through each UFH pipe circuit. Used to control and balance flow across multiple heating loops.
Pump Pack / Temperature Control Unit Helps circulate and regulate water temperature through the UFH system. Commonly fitted with manifold-based warm water underfloor heating systems.
Pipe Connectors Connect the UFH pipework to the manifold and system components. Used during final pipework connection and commissioning.
Controls Options Help manage room temperature and heating schedules. Used to control the underfloor heating system efficiently.

ThermRite PRO 20mm Panels: When Are They Suitable?

ThermRite PRO 20mm overlay panels are designed for low-profile warm water underfloor heating installations where the existing floor is stable, level and suitable for an overlay system. They are ideal for renovation projects where you want the comfort of wet underfloor heating without installing a new screeded floor.

Best Uses for ThermRite PRO Overlay UFH Kits

Retrofit Projects

ThermRite PRO overlay kits are ideal for adding water underfloor heating to existing homes where a low floor build-up is important.

Renovations

A practical choice for property upgrades, refurbishments and room-by-room heating improvements.

Extensions

Suitable for kitchen extensions, garden rooms, utility spaces and open-plan areas where a dry overlay system is preferred.

Kitchens & Living Areas

Helps deliver comfortable, even heat across frequently used rooms without relying solely on radiators.

Tile, Vinyl, Wood & Laminate Floors

The dual-purpose panel design supports a range of floor finish options when installed according to the correct floor covering method.

Trade Installations

A convenient kit format for installers, plumbers and heating engineers working on low-profile water UFH projects.

Frequently Asked Questions

What is a ThermRite PRO overlay underfloor heating kit?

A ThermRite PRO overlay underfloor heating kit is a warm water UFH system designed to be installed over a suitable existing floor using low-profile grooved panels. The pipework sits within the panel grooves, with the floor finish installed above.

How thick are the ThermRite PRO overlay panels?

These kits use 20mm ThermRite PRO panels, making them a low-profile option for retrofit and renovation underfloor heating projects.

What pipe spacing do these kits use?

ThermRite PRO 20mm panels are designed for pipework at 150mm centres, helping provide strong heat output across the heated floor area.

Are these kits suitable for renovations?

Yes, ThermRite PRO overlay UFH kits are well suited to renovation and retrofit projects where the existing floor is suitable and a low build-up water underfloor heating system is required.

Can tiles be fitted over ThermRite PRO panels?

Yes, ThermRite PRO panels are dual-purpose panels suitable for tile, vinyl, laminate and wood floor finishes when installed using the correct preparation, adhesive and floor covering method.

Do these kits need screed?

No, these are overlay underfloor heating kits and are designed as a dry, low-profile alternative to a traditional in-screed UFH system.

What size overlay underfloor heating kit should I choose?

Choose the kit size that most closely matches your heated floor area. For example, a 20m² kit is designed for up to 20m², while larger kit sizes are available up to 180m².

Do these kits include everything needed for installation?

The kits are designed to include the key UFH components required for a typical ThermRite PRO overlay water underfloor heating installation. Always check the individual product page for the exact contents of each kit before ordering.