Is Your System Balanced?

With the shift to small condensing boilers and lots of zones a new challenge has arrived , avoiding excessive boiler cycling.  What is an unbalanced system? In the typical condensing boiler installation it is a situation where the system side is flowing at a lower GPM and BTU rate than the boiler side.  An example is a small zone of baseboard using 2 GPM and 20,000 BTU connected to a 150,000 BTU boiler that can only turndown to 30,000 BTU.  There are several solutions to the problem including ramp delay of a boiler, variable speed boiler pumps, zone synchronization and buffer tanks.  Lee Cook of Capco Supply has put together a great article on using buffer tanks.

 Read Lee's Article Here