Solar Air Heating Technology

Cut Energy Costs
with Solar Air Heating

Up to 80% Thermal Conversion No Leakage No Freezing Ultra-Long Service Life

SOLETKS solar air heating system delivers exceptional performance with industry-leading thermal efficiency. Perfect for residential and commercial applications, providing reliable warmth without the risks of traditional water-based systems.

DVC500

Double-Pass Vacuum Tube
Air Collector

High-Efficiency Solar Air Heating System

The DVC500 is an advanced solar air collector that uses air instead of liquid as the heat transfer medium. Leveraging an all-glass double-pass direct-flow vacuum tube with a patented expansion joint structure, the system achieves rapid heat conversion, excellent environmental adaptability, and long service life—making it ideal for clean, low-cost heating.

Core Technology

Double-Pass Direct-Flow Vacuum Tube

Interconnected head & tail structure ensures double-pass airflow, low resistance, and large air volume
Resolves common issues of traditional systems such as freezing, cracking, and pipe blockage

High-Efficiency Interference Coating

Magnetron sputtering selective coating
Absorption rate: 93% (±2%@AM1.5)
Emissivity: 6% (±2%@80°C)
Supports high-temperature operation above 280°C

Fluorine-Free PU Insulation (Eco-Friendly)

German uniform high-pressure foaming technology
Dense insulation structure ensures stable thermal performance, safe and environmentally friendly

Performance Advantages

>80% light-to-heat conversion efficiency

No freezing, no clogging, no leakage risks

Maintenance-free, service life over 50 years

Adjustable air volume & supports natural or forced circulation

Can be coupled with air-source heat pump, significantly improving COP in cold regions

Application Scenarios

Suitable for direct space heating or indirect heat supply via heat exchangers, widely used in various commercial and industrial settings.

School Classrooms

Office Buildings

Workshops & Warehouses

Railway & Highway Stations

Agricultural Drying

Industrial Drying

🌍 Ideal For Users Who Want:

Solar heating with no antifreeze, no pumps, no leakage risk

Stable winter operation even in high-altitude & ultra-cold regions

Lower energy bills & reduced carbon emissions

Long-term heating solutions requiring minimal maintenance

Summary of Key Specs

Feature	Specification
Heat Transfer Medium	Air
Tube Type	All-glass double-pass vacuum tube
Absorption Rate	~93%
Max Operating Temp	≥ 280°C
Conversion Efficiency	> 80%
Service Life	> 50 years
Compatibility	Solar + Air Source Heat Pump Coupled System

Cut Energy Costs with Solar Air Heating

Double-Pass Vacuum Tube Air Collector