XPS400 Ultra Response Board

Zero Cold Spots.
Lower Bills.

The Ultraflow XPS400 board uses 200 micron aluminium lined directly into the pipe grooves — not just a surface sheet. Heat is extracted from the pipe and spread evenly across the entire floor, eliminating cold spots and allowing your system to run at significantly lower flow temperatures.

Saves Up To £500/yr Heat Pump Ready 200 Micron Aluminium No Cold Spots 33–35°C Flow Temp

£500 Saved
per year

No Cold Spots

Lower Flow Temp

Saves Up To £500/yr

Heat Distribution Test Data

Faster Response.
Better Heat Spread.

The XPS400 board features aluminium-lined pipe grooves with a 200 micron layer — not just a surface sheet. Heat is extracted directly from the pipe and conducted laterally across the full floor area, resulting in a temperature drop of just −4.5°C from pipe to midpoint versus −14°C with boards using no aluminium.

Distance from Pipe	Ultraflow XPS400 (0.2mm & In Grooves)	0.1mm Aluminium	No Aluminium
Above pipe	35.0°C	35.0°C	35.0°C
50mm	33.0°C	31.5°C	28.0°C
100mm	31.0°C	27.5°C	23.0°C
Midpoint	30.5°C	25.5°C	21.0°C
Temp Drop	−4.5°C — Minimal	−9.5°C — Noticeable	−14°C — Severe

* Representative data at 200mm pipe centres.

✓

Aluminium in Grooves = Direct Heat ExtractionHeat pulled from the pipe surface immediately — no air gaps, no lost energy

✓

Thicker Aluminium = Better Lateral Spread200 micron layer distributes warmth evenly across the full floor — no cold patches

✓

Lower Resistance = Lower Required Flow TempThe board works harder so your boiler or heat pump doesn’t have to

Lower Flow Temp = Higher Efficiency

Savings Up To
£500 Every Year.

Because the XPS400 transfers heat so efficiently, the system can run at a significantly lower flow temperature. Lower flow temperature means your heat pump operates at a higher COP and your boiler runs more efficiently — directly reducing your annual heating bill.

System	Ultraflow XPS400	0.1mm Aluminium	No Aluminium
Flow Temperature	33 – 35°C	42 – 45°C	50 – 55°C
Heat Pump COP	~4.0	~3.0	~2.5
Estimated Annual Cost	£750	£1,000	£1,200+

~4.0

COP with Ultraflow XPS400

vs ~2.5 COP with no
aluminium boards

33°C

Ultraflow Flow Temp

55°C

No Aluminium Flow Temp

The XPS400 doesn’t just spread heat — it extracts it efficiently, distributes it evenly, and reduces the energy required to heat the space.

Why Installers Specify the XPS400

The Board That Works Harder

🌡

No Cold Spots

200 micron aluminium in grooves delivers even heat spread across the full floor area — every time.

⚡

Faster Heat-Up

Direct heat extraction from the pipe means the floor responds faster and reaches temperature quicker.

🔥

Perfect for Heat Pumps

33–35°C flow temp allows heat pumps to run at peak COP ~4.0, maximising efficiency on every job.

Lower Bills

Savings of up to £500 per year versus no-aluminium boards. Proven data, real-world results.

£500

Potential annual saving

~4.0

Heat pump COP with XPS400

33°C

System flow temperature

200µm

Aluminium layer thickness

Zero Cold Spots.Lower Bills.

Faster Response.Better Heat Spread.

Savings Up To£500 Every Year.

The Board That Works Harder

No Cold Spots

Faster Heat-Up

Perfect for Heat Pumps

Lower Bills

Ready to order or need trade advice?

Zero Cold Spots.
Lower Bills.

Faster Response.
Better Heat Spread.

Savings Up To
£500 Every Year.