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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.


VLo Ultra-12

The VLo Ultra-12 Low Build System is perfect for renovation projects with uninsulated subfloors, adding only 18mm to the floor build up.

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VLo Nexxa-12

The Warmup VLo Nexxa-12 Castellated System is a low-profile, screeded water heating system developed for use with insulated subfloors.

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VLo Econna-12

The VLo Econna-12 Joisted Floor System is designed for use over both battened and joisted floors, leaving the void between them free for other services.

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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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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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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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hydronic underfloor heating Tectora joisted

Tectora Joisted Floor System

The Warmup Tectora System is designed for use within either battened or suspended timber floors, including TJI joist constructions.

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Warmup hydronic forte system

Forte Grid System

The Warmup Forte System is the logical choice for reinforced concrete and screed floors with the pipe tied to the steel reinforcement.

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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.


Low-Profile Water Systems

Water systems are perfect for bringing energy-saving heat to new build-projects and we also offer a wide range of water systems for renovation projects that won’t impact floor heights. The VLo line of low-profile water floor heating systems are especially popular for home refurbishment projects where a low floor build-up is required. The line is comprised of three different solutions, with each system designed for a specific application; the VLo Ultra-12 Low Build System is for use with uninsulated floors, the VLo Nexxa-12 Castellated System for insulated floors and the VLo Econna-12 Joisted Floor System is designed for use with joisted floors. Each system offers rapid installation times and will provide an energy-efficient, low-carbon heating solution for your home with low long-term running costs.


Warmup ‘s innovative water UFH pipes are easy to install and ensure you have the optimum system for your home tailored to your specific project type, installation method, and budget. All water floor heating solutions come with a system-specific heating pipe, all of which feature market-leading warranties.

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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 water underfloor 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 UFH FAQs

Is a water system just recommend for new-build homes?

Due to their installation requirements, water systems are typically recommended for new-build projects however we offer a range of low-profile water UFH systems that have been specifically designed for use in renovation projects.  

Can I heat my whole house with a wate UFH system?

Yes, you can. Water systems are ideal for use as the primary source of heat throughout the house.  

Can I use a water system with a heat pump?

Heat pumps are perfect for use with water underfloor heating systems. Heat pumps operate at lower temperatures than traditional boilers which means they work best with radiant floor heating systems. 

How much money and energy could water UFH save me?

Underfloor heating offers low running costs compared to traditional heating solutions. Replacing your home’s central heating system with a new heat pump and a Warmup water system could cut your carbon output by nearly 1900 kgCO2/year whilst bringing annual savings of nearly £700.  

Is water underfloor heating low maintenance?

Warmup heating systems require little-to-no maintenance and all products are covered by market-leading warranties for your peace of mind.  

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

Wiring Centre

All water 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.

HiDeck Overlay 18

Screed replacement system for use with a range of Warmup water underfloor heating systems.

Related Articles

So, you’ve decided you want to heat your home with UFH but how do you choose between an electric and water-based system?

Work out which of our energy-efficient wet systems is best for your home.

Thinking about installing a water floor heater in your living room? Find out exactly how much you can expect to pay.

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Get a Free Quote and Order Online Today

Use our online quoting tool to find the best water underfloor heating system for your project and purchase it directly from Warmup.

Quoting Tools: instant, accurate, flexible

Warmup offers an extensive range of electric and water floor systems compatible with all floor types, rooms and projects.

Electric Systems

  • ✓ Ideal for zones less than 25m²
  • ✓ Ideal for single rooms
  • ✓ Does not alter floor levels
  • ✓ Great for renovations

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Water Systems

  • ✓ Ideal for larger zones over 25m²
  • ✓ Rapid auto heat loss calculations
  • ✓ Compatible with existing central heating systems
  • ✓ Great for new-builds

Water Systems Quote & Buy
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For areas of 24m2 or more, use our full quoting system
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