
Square Edge
Uncapped finish- Simple, stylish square edge
- Ideal for modern apartments
- Our slimmest profile
ThermaSkirt H2O connects to your existing boiler or heat pump just like a radiator, but instead of a bulky metal box on the wall, your heating runs invisibly around the room at skirting board level.
ThermaSkirt H2O is an aluminium radiant heating panel disguised as a standard skirting profile. It replaces both your radiators and your existing skirting in a single 20mm-thick component, carrying hot water from your boiler or heat pump around the perimeter of every room.
It connects into your existing pipework just like a radiator, but instead of concentrating heat on one wall, it spreads warmth around the whole room. Virtually indistinguishable from ordinary skirting, it can be painted to match any décor, with matching unheated MDF profiles for cupboards and alcoves.

At just 20mm (3/4") in depth, every ThermaSkirt H₂O profile looks like a traditional skirting board. Choose between our Standard and High Output profiles, then pick the finish that suits your home. Uncapped, traditional torus, or softer ovolo.
Our slim-line profile, designed to disappear into modern interiors while still replacing every radiator in the room.
Download Deco BM2 technical data sheet (PDF)





Taller profile with increased output. Designed for heat pumps, poorly insulated rooms and larger open spaces.
Download Deco BM3 technical data sheet (PDF)





ThermaSkirt isn't a smaller radiator - it works on a different principle. The combination of radiant emission, perimeter coverage and BSRIA-tested even distribution is what lets it deliver underfloor-heating-like comfort at boiler-friendly and heat-pump-friendly flow temperatures.
Conventional radiators rely on hot air rising. Drop the flow temperature and that effect collapses, and output falls roughly 70% from dT50 to dT20. ThermaSkirt has no fins to convect; it radiates outward across the room and only loses around 52% over the same drop.

Heat is emitted at the external perimeter, exactly where the room loses it. The whole space becomes one thermal envelope, with comfort that's largely independent of where you put the sofa, the bed or the wardrobes.

Low water volume means ThermaSkirt warms up and cools down in minutes, not hours. And unlike underfloor heating, performance doesn't change with what's laid on the floor above it: tile, wood, vinyl or carpet, the response is the same. You get the even-heat distribution of UFH without giving up the responsiveness of a radiator.
Heat pumps work best at 35-45°C. Standard radiators lose around 70% of their output at those temperatures, which is why heat pump retrofits so often end up with oversized radiators or very often more than one. ThermaSkirt uses the whole room perimeter as its heating surface, retaining nearly 50% of output at dT20 (vs ~30% for radiators) and delivering the warmth you need without taking over your walls.
ThermaSkirt holds approximately 0.5 litres of water per 5 metres of profile, a fraction of a panel radiator. That drastically reduces the thermal mass the boiler or heat pump is heating on each cycle, shortening start-up times and improving cycle efficiency on low-flow-temperature heat sources. Because the system is aluminium, BS 7593 chemical dosing (Fernox F1, Sentinel X100 or equivalent) at pH 6.8-8.3 is required to maintain the manufacturer's warranty.
ThermaSkirt H₂O installed in homes across the UK: kitchens, living rooms, bedrooms, open-plan spaces. Tap any image to see the full view.
All three are wet systems that connect to your boiler or heat pump, but the experience of living with them (and installing them) is very different. Here's how they stack up on the things most homeowners care about.
| Feature | ThermaSkirt H2O | Standard Radiators | Wet Underfloor Heating |
|---|---|---|---|
| Wall space & furniture | Frees 100% of wall space. Sofas, beds, wardrobes flush against the wall. | Dictates room layout. Cannot block with heavy furniture. | Frees 100% of wall space. Hidden under the floor. |
| Installation disruption | Minimal. Fits like a skirting board in 1–2 days per room. | Minimal. Swap on existing pipework in a day. | Very high. Requires lifting floors, pouring screed or raising floor levels. |
| Retrofit cost | Low to medium. Plumbs into existing 15mm or 10mm pipework. | Lowest upfront cost for a like-for-like swap. | Very high. Deep secondary costs (floor removal, screed, doors). |
| Heat pump compatibility (35–45°C) | Excellent. Retains ~48% output at dT20, so no oversized emitters needed. | Poor. Requires massive oversized double/triple panels. | Excellent. The most common pairing for heat pumps in new builds. |
| Response time | Good. Heats up in 10–15 minutes on a standard gas boiler circuit. | Good. Heats up in 10–15 minutes on a standard gas boiler circuit. | Slow. 1–3 hours to heat the thermal mass of the floor. |
| Floor coverings | No restrictions. Thick carpets, solid wood, rugs all fine. | No restrictions. | Restricted. Thick carpets (>1.5 Tog) act as insulators, blocking heat. |
| Dust & hygiene | Radiates clean heat. Wipes clean with a cloth. | Traps dust and pet hair inside deep metal fins. | Sealed under the floor. No dust accumulation. |
ThermaSkirt fits like a skirting board and connects like a radiator. Most rooms are finished in a day, and a whole house usually takes under a week.
Upload a sketch, get a heat-loss calc and room-by-room quote.
Pre-cut lengths, made in Manchester from 75% recycled aluminium.
Connects to your existing flow and return pipes. No floor lifting.
Horizontal pipework doesn’t collect air. 10-year warranty.
Around 70% of homeowners fit ThermaSkirt themselves using our video guides, PDF instructions and colour-coded cutting sheets. All you need is basic plumbing tools and a chop saw.
See the DIY guidePro pathwayOur UK-wide network of 120+ registered installers handles everything, including the boiler or heat pump side. Many are full heating engineers who can take on the whole job.
Find an installer near youFind the right ThermaSkirt product for your project.
Get a free, no-obligation quote with a room-by-room breakdown based on your floorplan.