Save electricity with new ECM variable speed circulator pumps.
The average “old fashion” circulator pump consumers from 80-90 watts, per pump. If a home has 4 zones, it likely has 4 circulator pumps, one for each zone. Or, 1 large circulator pump and a zone valves for each zone. In this example 4 old fashion zone valves would consume a total of 320-360 watts per hour, and that certainly adds up at the end of the month.
Old pumps, vs New variable speed ECM pumps. Permanently Magnetized components found within the ECM pump makes it about twice as electrically efficient as it’s predecessors. By creating the magnetic field naturally, a great deal of energy is saved. These pumps also communicate with the boiler, they sense the difference in water temperature between the Feed & Return line, and take into account the outside air temperature. Using this information the pump adjusts to the exact amount of pumping power required to satisfy the call for heat. Rather than pumping at “full force” all the time like all old circulator pumps, the new ECM pumps change speed to the exact amount of “pumping required” to satisfy the thermostat call for heat, no more no less. Where old circulator pumps consume between 80-90 watts, new ECM pumps modulate down to 12-15 watts, in low pumping cycles.
Here’s a good video on zone Circulator Pumps. Old Vs Variable Speed ECM
Do you have some outdated pumps?
If they look like these old monsters, (right) it’s time to replace them.
Give me a call to talk about your updating/ replacing your circulation pumps, or replacing your heating system altogether. There are countless high-efficiency alternative to what you currently have, I’ll narrow dozens of possibilities down to a few logical choices after I learn more about your home, its energy sources and your goals for the new system.
Your local water heating expert