27 Tube Vacuum Solar Water Heater, 170 liter tank

详情

 **0L Standard Solar Water System

Solar Water Heater System-Glass Heat Pipes

**-Tube Solar water heater system-Freeze Proof. Large enough capacity for a typical 3 bedroom house in mid-latitudes.

- most popular integrated systems sold

- no corrosion since glass heat pipes

- no water in tubes, no leaking tubes

- lowest cost per liter hot water

·Stand alone system, no additional parts

·Economic system for typical house

·Assemble yourself in 3 hours

·Graded Al-N/Al selective coating, high energy absorption and low heat transfer losses

·highly evacuated with pressure≤5×*0*2Pa in the space between outer and inner covers, so no heat loss

·All Glass Heat pipes transfer heat energy in one direction only

·High transparency with boron silicon glass, high resistance to cold water shock

*7 tube solar water heater with sealed all glass heat pipes. **0 liter stainless steel inner tank, aluminum stand, air vent, water inlet and outlet fittings, tank cover, foot cushions, end caps.

Vacuum tubes can never freeze, since they contain no water. Heat pipes can never corrode, since they are made from glass.

How it works:

There are two tricks to the high efficiency of this solar heater. First, a vacuum prevents any conductive or convective heat loss to the environment from the absorber. Second, heat pipes ensure one-way heat transfer from the absorber to the water: the water can not heat the absorber. The selective coating in the inner cover of the evacuated tubes ensures high energy absorption and low heat radiance losses. The liquid in the inner glass heat pipes changes into vapor which then rises up the heat pipe. When heat is exchanged between the condenser end of the heat pipe and the cold water in the tank, it turns into liquid again, then comes down to the base of the heat pipe. This cycle continuously repeats as long as the sun shines. Hot water can be obtained by injecting cold water into the bottom of the tank, with the hot water being forced out the top.

The evacuated tubular collector with heat pipes are quasi-tracking in four seasons, which is to say that as the sun tracks across the sky, about the same absorber area is facing the sun all the time, since the absorber surfaces are cylindrical. The collector will be in operation as long as sun shines. The solar water heater can be in service all year round even in cold climate areas since heat pipes transfer heat in one direction only within the collector and the vacuum prevents convective heat losses.

Premium Solar System:Convenience with peace of mind. Automatic tank filler to connect directly to pressurized water. Automatic electronic temperature control with backup electric heater. Pressure pump downstream of tank keeps high pressure water outflow regardless of tank location.

Automatic Solar System:Save effort: connect directly to pressurized water with auto-filler valve to keep tank full. Automatic electronic temperature control with backup electric heater. Tank drains by gravity; for higher pressure, place unit higher on roof.

Basic Solar System:Excellent for off grid: no pump, no electronics. Absolute reliability, easy setup: **0L Basic System The pure, simple, original system-no electricity, no pumps, no controls, nothing to wear out, nothing extra to buy. Manual filling and draining, which means filling the unit with water in the morning, then gravity draining after a few hours of sun have heated the water

Type:Gravity System, **0 liter (*5 gallon)

Tubes: *7 tubes, *7 mm diameter, 1.5 meter length, all glass heat pipe

Aperature Area: 2.*9 square meters, standard frame at *5 degree angle

Water volume: **0 liters (*5 gallon)

Net Weight: *6 kg (no water)

Gross Weight: **8 kg (full of water)

Electric heater: ***0 W or ***0 W, with electronic controller

Automatic filler Option available; mechanical design, lifetime of greater than *0 years