Boilers - Zoning with pumps or valves EXPLAINED

Boilers - Zoning with pumps or valves EXPLAINED


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There are more than one way to skin a cat. In fact, ask ten people and you will get eleven answers.


The simple explanation.


Zoning with pumps gives you one pump per zone. Bet you knew that already, didnt you?!

Pros: Redundancy, precise control of flow.

Cons: electrical cost, more moving wheels on the bus to break, larger near boiler piping to prevent NPSH


Zoning with zone valves leaves you with a central pump and zone valves (motorized valves) that open and close when each zone calls for heat.

Pros: Less electrical draw, smaller near boiler piping, easy replacement when zone valve breaks, easily bypass a non working zone valve.

Cons: Not as redundant (one system pump), not as precise flow, replacement of full valve requores draining system.


Know the application before choosing the product

Know the application before choosing the product

Two ways to rid yourself of refrigerant leaks for good!

Two ways to rid yourself of refrigerant leaks for good!