This is an example of how to use a Gas Boiler to produce different water temperatures for 5 zones
(High / Low Temperatures) plus a zone for the Indirect Hot Water Tank.
You will notice that in this example there are 3 possible temperatures for the
heating zones. There are 3 zones for high temperature that
can feed radiators or baseboard convectors at whatever the boiler water temperatures is set to.
There are 2 zones for a set temperature that could be used for pex radiant heat zones at
different water temperatures.
This is only an example.
Actual layouts vary from job to job.
|