Warmup Fixing Methods
Warmup have a range of fixing methods for their wet and electric underfloor heating systems. These have been expertly designed for a range of subfloor and flooring types - here we explain when you should use each wet underfloor heating system.
Wet Underfloor Heating
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Warmup have designed a wide range of underfloor heating fixing methods for both wet and electric underfloor heating systems. These have been expertly designed to suit all manor of subfloor and floor combinations. Here, we explain the scenario that each of these wet systems has been designed for, and when you should use them.
VLo Ultra-12
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VLo Ultra-12 has been designed as the ideal wet underfloor heating system for home renovations. This system increases floor height by just 18mm and can be used with almost all floor finishes including: solid and engineered wood, ceramic or stone floors as well as vinyl and carpet.
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The VLo Ultra-12 System offers a dry installation method for floating floors and features built-in high-quality insulation and a 150μm diffuser for efficient heat spread. It uses dedicated heating, end, service and plain panel types, making it ideal for rooms of any size and shape.
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The Ultra-12 uses Warmup’s new and improved 12mm PERT heating pipe and features a recycled fleece decoupling layer on both the base and top of the Ultra-12 Low Build Panels for a fast and secure installation. Its low-weight construction provides a smooth and hassle-free installation.
VLo Nexa-12
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The VLo Nexxa-12 is a low-profile, screeded hydronic underfloor heating system featuring a unique castellated membrane for precision heat control.
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The system incorporates the 12mm PERT pipe with an innovative castellated membrane which facilitates an optimal heating layout and allows a clear and repeatable installation method for larger projects.   
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With fast response times and an excellent heat output (70W/m2 for timber floors at 40°C water temperature), the VLo Nexxa-12 offers great versatility and value for money.
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The Nexxa-12 panels are self-adhesive, bonding directly to a smoothed and primed subfloor – making them quick to lay with no waiting around for drying time. Once laid, the 12mm PERT heating pipe can be simply clipped into place within the castellated membrane and the layout of the heated area can be personalised based on your project’s needs.
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The panels are easy to cut with a utility knife and measure 650 x 1050mm. Once the pipe is installed, an appropriate levelling compound can be poured to a thickness of 22mm. Insulation should be installed underneath the Nexxa-12 panels to ensure rapid heat up times and reduce energy usage.
VLo Econna-12
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The VLo Econna-12 Joisted Floor System is an optimised hydronic heating system to install with battened or joisted floors.
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The VLo Econna-12 Joisted Floor System allows quick installation times due to its dry, screedless installation method and one-piece panel design. The slimline 22mm thick panels with a built-in layer of diffusion foil facilitate an even heat distribution, ensuring no hot or cold spots.
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The Econna-12’s low-profile design uses a 12mm heating pipe which is built into the structural floor, making sure there will be no overheating of the floor finish. Its 22mm chipboard panels can be installed over battens or joists with spacings of up to 600mm centres and feature a fluted exit to ensure an easy transition into the neighbouring panel.
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With no screeding required, the universal panels hold the heating pipe in the optimal position; simply glue and screw down the boards, place the pipes within the grooves and then apply a 6mm ply on top prior to fitting the floor finish.  
Clypso System
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The Warmup Clypso System is designed for use within floating screeded floors. Typically, it does not affect the depth of a floor’s construction.
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The Clypso system is one of Warmup’s most popular hydronic underfloor heating systems that comprises of heating pipes, connection clips and unique laminated insulation panels. It is recommended for off-plan projects featuring floating screeded floors. It can be installed with almost any floor finish and in particular where the flooring may be replaced from time to time.
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The Clypso system uses plastic clips to secure the underfloor heating pipe to laminated insulation panels. The panels are available in a variety of depths, from 25mm to 100mm and are constructed from either PIR (polyisocyanurate) or expanded polystyrene insulation with a fabric reinforced foil laminated to their surface.
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The foil on each panel comes with two flaps, for taping to the adjoining panel, thereby increasing water resistance and separating the insulation layer from the wet screed. The laminated foil is also printed with a 50mm grid pattern to make consistent pipe-spacing easier for the installer, especially when required to work around obstacles. This makes installation of the Clypso system fast and efficient.
Metro Rail System
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The Warmup Metro System is designed for use within either a floating or a bonded screed floor.
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The Metro Rail System utilises a track that fixes to the insulation to securely hold the heating pipes in place, in an optimal layout. It is ideal for use with either floating or bonded screed floors and offers a quick and efficient installation. It is suitable for use with any Warmup heating pipe and is recommended to be installed with the Metro Insulation board.
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The system holds the pipework into place until the screed is applied. UltraTile from Instarmac provides one of the best screeds on the market for this purpose. It is suitable for almost any floor finish and in particular where the flooring (wood, carpet or vinyl) may be replaced from time to time.
Contura Floating Floor System
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The Contura System is a screedless hydronic UFH solution for use with floating floor finishes over a concrete or solid wooden subfloor.
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The Contura System offers a dry-finish hydronic floor heating option. It is recommended for use within floating floors above a wooden or concrete subfloor and with no need for screed, the system features aluminium diffusion plates for optimal heat distribution. It can be installed within new builds or renovation projects, when sufficient levels of insulation are present.
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The Contura system comprises of Warmup heating pipes, preformed insulation boards and diffusion plates. It is used where underfloor heating is installed onto a concrete or solid wooden subfloor but where a dry finish is used in place of a standard screed covering. This system typically has a lower wattage per square metre output (75w/m²) compared to traditional screeded floors.
Nexxa System
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The Warmup Nexxa System features a range of castellated panel options for a customisable installation of water underfloor heating within floating screeded floors.
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Due to its low-profile design, the Nexxa System is an ideal system for floating screeded floors in both new-build and refurbishment projects. It uses unique castellation panels in which to securely locate and hold the floor heating pipes in place and its innovative panels require less screeding than other systems – meaning it can reduce the structural load on the building and result in cost savings in screed materials.
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The Nexxa System offers faster heat up times through its 11mm EPS backing and heat outputs can be increased and water temperatures reduced, by using thinner, more conductive screeds.
Tectora Joisted Floor System
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The Warmup Tectora System is designed for use within either battened or suspended timber floors, including TJI joist constructions.
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The Tectora Joisted Batten Floor System is particularly suitable where there is a sprung/cradled battened floor or floor joists. The heating system features insulation installed between floor joists with the heating pipes inserted within diffusion plates fitted above for optimal heat distribution. It is a dry-fitted hydronic system, requiring no screeding.
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For this installation, a diffusion plate system is generally used if standard installation types are not suitable. For installing as a joisted system, the rigid insulation is placed between the joists to support the diffusion plates, as they span the joists.
