Solar energy is good or good vacuum tube
Canon can be heard, Haier is not specializing in the production of solar water heater, Haier things are OEM, before the pipe is Tsinghua Sunshine Property, I do not know whether or not, because the tube has been purple Tsinghua patented products, you said the two recommended Haier, in addition to solar energy brand is the most important customer service
The absorption rate is 5% higher than that of the ordinary black, or blue tube
The tubes of the solar energy are vacuum, the purple tube is coated with purple,
