WUNDER ANP 1808
High-performance 1.8 m² selective-surface solar thermal collector designed for residential, commercial, and industrial hot water applications.
WUNDER ALS 2512
WUNDER ALS 2512
High-efficiency 2.5 m² solar thermal collector with Almeeco-Tinox selective coating, laser-welded copper pipes, and rock wool insulation.
- Superior Solar Absorption – Almeeco-Tinox selective coating and laser-welded copper pipes maximize heat transfer and efficiency.
- Durable & Weather-Resistant – Aluminum frame with tempered glass withstands harsh conditions for long-lasting performance.
- Easy & Fast Installation – Modular design with quick-mounting system saves installation time and reduces costs.
- High-Performance Insulation – Rock wool insulation minimizes heat loss, ensuring optimal energy efficiency.
- Certified & Long-Lasting – Solar Keymark certified with a 10-year warranty for peace of mind.
Experience the Future of Solar Heating
The WUNDER ALS 2512 Thermal Collector is a high-efficiency solar heating solution featuring Almeeco-Tinox selective coating, low-iron tempered glass, laser-welded copper pipes, and rock wool insulation for maximum solar absorption and minimal heat loss. The turbulent flow design enhances heat transfer for consistent performance, while the aluminum frame provides long-term stability and resistance to environmental conditions.
Its easy-to-install fastening system allows seamless integration on various roof types, reducing installation time and costs. Backed by a 10-year system warranty and Solar Keymark certification, WUNDER ALS 2512 delivers reliable, efficient hot water and heating performance for residential, commercial, and industrial applications.
General
Dimensions
mm
1988×1218×90
Weight
kg
32
Gross Area
m²
2.42
Aperture Area
m²
2.27
Absorber Area
m²
2.27
Absorptance
0.95
Emittance
0.03
Absorber Material
Highly selective aluminum
Glass Material
Low Iron Tempered Glass
Glass Thickness
mm
3.2
Heat Carrier Volume
L
1.45
Absorber Pipe Diameter
mm
8
Header Pipe Diameter
mm
18
Connection
inch
3/4"
Insulation Material
Rock Wool
Insulation Thickness
mm
40
Stagnation Temperature
°C
210
Maximum Operation Pressure
Bar
10
Nominal Flow Rate
kg/hm²
72
Notes
- Solar Keymark certified with a 10-year system warranty.
- Turbulent flow design enhances heat transfer efficiency.
- Compatible with all standard roof types using the modular fastening system.
- Suitable for residential, commercial, and industrial applications.
Contact quality@solimpeks.com for local certificates / OEM certificate duplication requests.
Understand the technology
Explainers from our Knowledge Hub on how this technology works.
Guides
Solar Thermal Collectors: The Complete Guide
Solar thermal collectors convert sunlight directly into usable heat with efficiencies of 60–80% — three to four times the...
Common Questions
Flat-plate vs evacuated tube collectors: which is better?
Flat-plate collectors are the better choice for domestic hot water in sunny and temperate climates: higher optical efficiency...
Glossary
Collector Efficiency Curve (η0, a1, a2)
The collector efficiency curve states how a solar collector's efficiency falls as it runs hotter than its surroundings: η = η0 −...
Glossary
Solar Keymark
Solar Keymark is the leading European certification for solar thermal products, issued under the CEN Keymark scheme. It proves a...
Frequently asked questions
Short, factual answers about the WUNDER ALS 2512.
Is the WUNDER ALS 2512 Solar Keymark certified?
Yes. The Wunder collector range holds Solar Keymark certification issued through DIN CERTCO, and the certificate artwork is displayed on this page. Solar Keymark is the European quality mark that most national subsidy schemes require before a collector qualifies for funding.
How efficient is the WUNDER ALS 2512's absorber?
The selective-coated absorber reaches an absorptance of 0.95 while keeping emittance at 0.03, meaning it captures 95% of incoming solar radiation and re-radiates very little of it as heat loss. Aperture area is 2.27 m².
How many collectors do I need for my home?
For domestic hot water, plan roughly 1-1.5 m² of flat-plate collector area per person in southern climates and 1.5-2.5 m² per person in central and northern Europe, with 40-60 litres of storage per m² of collector. A family of four typically needs 2 collectors and a 300 L tank in Turkey or Spain, or 3 collectors and 300-400 L in Germany.
What warranty does the WUNDER ALS 2512 carry?
Solimpeks backs the WUNDER ALS 2512 with a 10-year product warranty, stated on this product page. Have the guarantee certificate stamped by the seller and follow the manual's operating conditions to keep the warranty valid.
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