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Water Underfloor Heating Systems

Water, also called wet or hydronic underfloor heating systems are a popular choice for extensions and new-build construction projects. These systems use water for heating, so it can be linked to virtually any heat source from a standard boiler to newer sustainable technologies, such as solar thermal energy or heat pumps.



The Total-16 Low Profile System is perfect for renovation projects and off-plan installations of UFH, adding only 16mm to the floor build up.

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Clypso system

Clypso Floor System

The Warmup Clypso System is designed for use within floating screeded floors. It is ideal if the flooring (wood, carpet or vinyl) may be replaced.

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Nexxa 12

Nexxa 12 is a low profile castellated system designed for renovation projects in particular where overall floor height plays a major role.

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Metro rail system

Metro Rail System

The Warmup Metro System is designed for use within floating and bonded screed floors allowing for quick, consistently spaced installation of the pipework.

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Contura floating floor system

Contura Floating Floor System

Contura Floating floor system is used where heating is installed onto a concrete or solid wooden subfloor for floating floors

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Econna joisted floor system

Econna Joisted Floor System

The Warmup Econna System is designed for use over both battened and joisted floors, leaving the void between them free for other services.

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Nexxa panel system

Nexxa Panel System

The Warmup Nexxa Panel System enables the most precise installation of underfloor heating within a floating screeded floor.

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underfloor heating thermostats

Bespoke Wet Underfloor Heating Solution

Warmup wet heating systems come designed and supplied with a full set of high-quality components and controls ready for installation. Systems are available in a number of configurations and components guaranteed to perfectly match your project and budget. Each system we provide is tailored during the project’s design stage to get an optimal balance between the system performance and efficiency. Once complete, the lifetime warranty on our heating pipes provide true peace of mind that the system will continue to perform.

The choice of which water system to use is governed by two main factors: The subfloor type and the finished flooring type.

Clypso insulation

Low-Profile Hydronic Systems

The most common underfloor heating systems used with new-builds and renovations are the Clypso System and the Total-16 System. The Clypso System is designed for floating screeded floors and does not get affected by changes in the floor covering whether wood, carpet or vinyl. This system comes with laminated insulation panels for efficient heating. The Total-16 System is popular for its low build solution, featuring a 12mm pipe and a 16mm total build up. With aluminium diffuser plates, it can be quickly installed onto either concrete or wooden sub-floors and under almost any floor finish.


Warmup offers a variety of heating pipes that will guarantee you have the best possible system tailored to your specific project, installation, and budget. Warmup systems come with a choice of 3 pipe types: the PEX-A, the PE-RT and the PE-RT/AL/PE-RT.

modern interior vacation home interior


Water underfloor heating is usually installed within the subfloor construction of a building. Before starting the installation make sure to read the installation manual and follow it every step of the way. The area must be dry and the insulation must conform to building regulations or practice and again, laid as per manufacturer’s instructions.

Wet System Kit

If you are looking for an easy and quick installation of a wet system, Warmup also offers a water underfloor heating kit. The HydroPack System allows for a fast installation of a wet underfloor heating system containing everything you need to install the system in hours.

concrete floor hydronic installation

What Is the Cost of a Water System?

Water underfloor heating is a highly cost-efficient heating system to run as it uses much less energy than a central heating system. Wet underfloor heating emits enough energy to bring your room to your comfort temperature at flow temperatures of 30-40 degrees. This is significantly less than the temperatures required by conventional radiators to bring your room to comfort temperature (60-70 degrees). This is due to the fact that hydronic heating systems spread the heat evenly across the floor surface and emit radiant heating through the objects of the room.

Running Costs

Water systems are particularly popular in energy efficient new build houses. You can calculate the running cost per m2 of your wet underfloor heating system here.

Water Components

hydronic underfloor heating pexa


Warmup systems come with a choice of 3 pipe types; PEX-A, PE-RT and PE-RT/AL/PE-RT - tailored to your specific installation and budget.

hydronic underfloor heating manifold


The Warmup Manifold is manufactured from stainless steel and provides water regulation for up to 12 underfloor heating circuits.

hydronic underfloor heating control centre

Control Center

All hydronic systems require a control centre that works with the thermostats and heat source, such as a boiler or heat pump.

hydronic underfloor heating Clypso insulation


Using our high quality Insulation with water floor heating systems significantly reduces the heat-up times and running costs.

Contura layered hydronic underfloor heating

Dual Overlay Concrete

Warmup’s Dual Overlay Concrete can be used with a variety of our water underfloor heating solutions as a screed replacement system.

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