Water tank for domestic split water heating system

For domestic split system, the tank capacity limit is: 100L - 500L, all are pressure tank.

According to different structure, there are three items:

1. No copper coil sets inside ( just pressure water tank, for direct heating system), better for clean/soft water markets.

2.One set copper coil set inside ( for both clean water and hard water quality markets)

3. Two copper coil sets inside ( one set is used for circulation-transferring energy from the solar collectors, another set is used for room heating purpose, or just for other energy sourse as backup, such as gas heater ).

All water tanks are fitted with : TP valve, Safety valve, Electric heater as backup.