How Evacuated Tube Collectors Work.
Key Features | A Look Inside | Average System Cost
System Overview:
Below are the key features of the Evacuated Tube Solar Collector design.
- Internationally certified product
- Reliable, efficient, twin-glass evacuated tubes
- Copper heat pipes for rapid heat transfer
- Easy plug-in installation
- Maintenance Free
- Stable solar conversion throughout the day (tubes passively track the sun)
- The perfect solar collector for domestic solar water heater systems
- Ideal for commercial solar water heating applications
For more details about the transfer station see the installation manual:
A Look Inside:
Solar energy is captured in the vacuum sealed glass tube, quickly heating a special non-toxic heat-transfer fluid in the copper heat pipe. The heated fluid rises to the top of the pipe where it heats water that is being circulated through the copper manifold in the insulated aluminum header. When the heat transfer fluid cools, it falls to the bottom of the heat pipe to be reheated.
These types of collectors can extract the heat out of the air on a foggy day and don't need direct sunlight. It actually performs better when the sun is not at an optimum angle - such as when it's early in the morning or in the late afternoon.
Average System Cost
Below is what a homeowner can expect to pay for an evacuated tube solar hot water system strong enough for a 2-bath or average four-person household:
| System Cost: | $2,500 |
|---|---|
| (includes collectors, standard racking & expansion tank) | pre-tax |
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