economical solar water heater with flat panel

economical solar water heater with flat panel Arbitrary combination with structure of the house anti-freezing

economical solar water heater with flat panel 

Tips for solar water heater purchase

1. Choose the reliable manufacturers familiar with foreign trade and good after sale service

2. Find out the way of feeding cold water, the quality of water, the temperature and using habit in your residential area.  

3. According to the usage, choose proper model and capacity.

Working principle

Sunlight passes through the glazing and strikes the absorber plate, which heats up, changing solar energy into heat energy. The heat is transferred to liquid passing through pipes attached to the absorber plate. Absorber plates are commonly painted with "selective coatings". Absorber plates are usually made of copper or aluminum because the metal is a good heat conductor. Copper is more expensive, but is a better conductor and less prone to corrosion than aluminum.

Features

1. Collectors are separated from the storage tank. The tank can be put anywhere of the house,so the whole system is harmonious with the building

2. Absorbing heat quickly

3. No worry about being frozen, anti-ice ball.

4. Completely automatic operation

5. Without incrusting, long usage life

6. Multifunction: Bathing, washing, domestic heating

7. Beautiful appearance

Specifications

The collector can be customized. The following is a common kind for reference.

Collector(bfc-1)
Dimension	2000 (L) x 1000 (W) x 80 (T) mm
Gross area	2.03m2
Aperture area	1.84m2
Absorber area	1.73m2
Total weight of empty collector	41.6kg
Transparent cover
Nuber of covers	1
Dimension of the opening	1970X970mm
Cover material	Tempered textured glass(no marking on the glass)
Cover thickness	4mm
Cover transmission	85%-87%
Absorber
Dimension	1840X950
Material	Red copper
Surface treatment	Black chromend/blue sputtered
Construction type	Fin&tube(ultrasonic welding)
Header material	Copper T2(chinese standard)
Header tuber size	Φ25mmX0.8 2pcs
Riser material	Copper T2(chinese standard)
Riser tuber size	Φ10mmX0.6 8pcs
Fill capacity	1.8L including the header pipe
Thermal insulation
Insulation material	Fibre glass Insulation(black backing)
Insulation thickness	Back 50mm
Conductivity(w/mk)	0.048w/m.k under test tempture 70°C
Casing
Frame	Aluminum alloy
Frame colour	Bronze
Back plate	Galvanised steel plate 0.21mm
Max operation temperture	200°C
Maximum pressure	1400kpa
Sealing gasket	EPDM
Limitations of operation
Max.working temperture	120°C
Max.working pressure	10bar
Max.pressure that cover can support	1000pa
Max.pressure allowed between fixing and case	1000pa
Recommended circulation flow	Glycol/water
Resistance to freezing	Not under minus 33°C

economical solar water heater with flat panel