Project Description
In large-scale projects we can also use a 'single-collected system'
that connects many single solar water heaters to form a hot water
supply.

We can not only change SWH to suit old buildings but also cooperate
with architects and design especially for new buildings. All models
feature the same installment and convenient maintenance.

http://www.alibaba.com/product-gs/50182289/Large_Scale_Project.html