1. Heat pipes are installed inside the vacuum tubes. Without water flow inside, the tube will not be broken or blocked by scales, which is safer and more reliable.

2. Operate automatically with pressure inside the system, so water is supplied under a pressure with more comfortableness for bathing. Its installation site is free from limitation.

3. This machine is equipped with auto. Auxiliary heating system, offering hot water safely even in cloudy or rainy days.

4. Breakage of one tube will not influence the operation of the whole system.

5. Inner tank is made of SUS316L, more anti-corrosive and longer in lifespan.

6. The unique T/P safe valve will keep it safer in operation.