Pressurized solar energy hot water heating system
Solar hot water heating system 
1. Model name: 
STH-100L
STH-120L
STH-150L
STH-200L
STH-240L
STH-300L
2. Tube specification: 
58mm*1800mm*10tubes
58mm*1800mm*12tubes
58mm*1800mm*15tubes
58mm*1800mm*20tubes
58mm*1800mm*24 tubes
58mm*1800mm*30 tubes
3. Tube coating: Heat pipe 
4. Absorber area: 1.95sqm 3.12sqm 3.91sqm 
5. Tank capacity:
100L
120L
150L
200L
240L 
300L 

Advantages: 
1). Highly efficient absorber of high performance with daily average efficiency over 50%; 
2). Start up quickly, heat pipe transfer the heat energy into the storage tank in one direction. 
3). Withstand pressure of 6 Bar, can be connected directly with city water. 
4). No water inside the evacuated tubes; The solar water heater can still in service even with several tubes breakage; 
5). Highly efficient insulation with polyurethane foam; 
6). Simple structure, easy to assembly and install, diffuse flat plate reflector can be assembled easily with its module structure; 
7). Can be used all year round in the cold climate; 
8). Can be used together with Auxiliary electric boost; 
9). Long service life, can be used as long as 15 years;
10). STH-L frame can be for slope roof and flat roof both.

Specifications: 
1). Material of storage tank:
2). Outer tank: Colorful steel, 0.4mm thick 
3). Inner Tank: Crystal liner 4mm, steel 1.5 mm 
4). Thick Insulation: Polyurethane foam, 50 mm 
5). Working pressure: 6Bar 
6). Daily efficiency: ≥ 55% (≥ 42% in winter) 
7). Working temperature: 60 Degree Celsius -35 Degree Celsius 
8). Vacuum tube specifications: 58mm*1800mm 
9). Lifetime: 15 years