Premium IR panels by infrared radiation efficiency comparison in Europe (2025)

Brand	Infrared Radiation Efficiency (IEC60675-3)	Warranty	Control	Design Range	Certificates / Tests
Sundirect (AT/China)	70.8% – measured by TU Dresden, IEC60675-3 (2024)	5 years	Integrated Wi-Fi, Smart1.0 / Pro thermostats, voice control	Frameless, glass, stone, mirror, art print	CE, TÜV, GS, ErP, RED, SAA, low EMF
Heat4All (AT)	~65–68%* (not publicly certified IEC60675-3)	5–8 years	Separate thermostat, no standard Wi-Fi	Glass, mirror, photo print	CE, RoHS, TÜV
VASNER (DE)	~68%* (internal tests, no independent public IEC60675-3 certification)	5 years	Separate thermostat, Wi-Fi as an option	Metal, glass, mirror, art	CE, TÜV, RoHS
Etherma (AT/DE)	~66–69%* (manufacturer’s data)	5 years	Compatible with smart thermostats	Glass, mirror, design panels	CE, TÜV, RoHS
Welltherm (DE)	~67%*	5 years	Wi-Fi as an option	Glass, metal, photo print	CE, TÜV
Royal Infrared Heating (ES)	not publicly measured	2–5 years	Wi-Fi available for certain models	Glass, mirror, art	CE, RoHS
Redwell (AT)	not publicly measured	5–10 years	Separate thermostat	Glass, mirror, design	CE, TÜV

* – Estimates based on manufacturer or independent market sources, not always in accordance with IEC60675-3.

Key Conclusions

Sundirect is the only premium manufacturer in the European market that publicly presents IEC60675-3 certified infrared radiation efficiency, and it is record-high at 70.8%.

Many competitors rely on approximate values or do not disclose results at all, which allows Sundirect to stand out in marketing with an independently verified technical advantage.

Integrated Wi-Fi control is offered by Sundirect as standard, while for most competitors it is only an optional add-on.

Sundirect’s design range is among the broadest – from classic to stone and fully personalized art solutions.

The warranty level matches or exceeds the market average within the premium segment.

Sundirect vs Premium Competitors in Europe (2025)

Criteria	Sundirect	Heat4All	VASNER	Etherma	Welltherm
Infrared radiation efficiency (IEC60675-3)	70.8% ✅ (TU Dresden, 2024)	~65–68%*	~68%*	~66–69%*	~67%*
Independent certified test	Yes ✅	No	No	No	No
Warranty	5 years	5–8 years	5 years	5 years	5 years
Integrated Wi-Fi	Yes ✅	No	No	No	No
Control	Smart1.0 / Pro, voice control	Separate thermostat	Separate thermostat	Separate thermostat	Optional
Design range	Frameless, glass, stone, mirror, art print	Glass, mirror, art	Metal, glass, mirror, art	Glass, mirror, design	Glass, metal, art
Certificates	CE, TÜV, GS, ErP, RED, SAA, low EMF	CE, RoHS, TÜV	CE, TÜV, RoHS	CE, TÜV, RoHS	CE, TÜV

* – approximate values based on manufacturer or market sources, not always in accordance with IEC60675-3.

📌 Why Sundirect Stands Out

Leader in Europe for independently verified efficiency – 70.8%, IEC60675-3.

The only premium brand where integrated Wi-Fi is standard equipment.

The widest design range – from classic to stone and fully personalized art.

Extensive certification and low EMF level.

EMF stands for ElectroMagnetic Field, i.e., the amount of electromagnetic waves emitted by the device during operation.)

Infrared panels, like other electrical devices, generate a small electromagnetic field, but a low EMF level means:

Emissions are far below internationally established safety limits.

This is important for people who want to reduce long-term exposure from household devices.

It indicates better shielding and safer construction.