| 1、 NO WATER IN TUBES 2、 NO SCALINESS IN TUBES 3、 NOT FROZEN DUE TO NO WATER IN TUBES 4、 HIGH EXCHANGE SPEED FOR SUPER CONDUCTING COPPER PIPE. 5、 NOT STOP THE WHOLE SYSTEM RUNNING FOR FEW TUBES BROKEN CONTINGENTLY. 6、 NO TUBE BROKEN DUE TO HIGH TEMPERATURE DIFFERENCE FOR FEEDING COLD WATER MOMENTARILY 7、 THE HEAT ISOLATION CAN PROTECT THE DUST RING AND SILICA RING. 8、 THE WOOD STOPPER IS ABLE TO PREVENT THE HEAT LOSS. 9、 THE WOOD STOPPER IS ABLE TO RELEASE THE PRESSURE WHEN THE TEMPERATURE IS TOO HIGH IN VACUUM TUBES, PREVENT THE TUBE TO BREAK. 10、THE THERMAL CAPACITY IN WATER TANK IMPROVED 10% HIGHER THAN VACUUM TUBE SOLAR WATER HEATER |
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