Free solar heat with NORDIC sunwall. Even at -40°C.
83% efficiency · 40°C temperature rise · 6-month payback
A simple black aluminium sheet. A small fan. And you have free hot air from the sun — and can SAVE UP TO 35%–50% ON YOUR GAS BILL.
No solar panels · No batteries · No inverters · No electricity generation · Just free hot air
It does not need warm air — it needs sunlight. As long as the sun shines, it works.

The NORDIC sunwall perforated black aluminium sheet that makes it all possible.
Specifications:
- Thickness options: 0.8 mm and 0.5 mm
- Black coated · AlMg3 (marine-grade aluminium)
- 1.6 mm holes · 2% open area
- 83% efficiency · 25+ year lifespan
- Made in the Netherlands
Estimated price:
- 0.8 mm: $170 per sheet (minimum 10 sheets)
- 0.5 mm: $140 per sheet (minimum 10 sheets)
Prices can be changed without notice when material prices change.
Shipping:
Sheets are shipped rolled in a sturdy cylinder for safe and affordable delivery. Flat pallet shipping is available on request for bulk orders.
Why our sheets?
- Pre-perforated — no drilling, no painting
- Black coating — maximum solar absorption (up to 95%)
- 79% cheaper than similar products
- Ready to mount on your south wall
Add a fan and ducting, and you have a high-efficiency solar air heater — and can save up to 35%–50% on your gas bill.

