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Condensing boilers using Taco Delta T pump vs Taco ECM pump with zone valves

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bob eck
bob eck Member Posts: 930
in THE MAIN WALL
When installing condensing gas boilers or combi boiler with multiple zones using outdoor reset control and zoning with zone valves.
What type of pump is best for the system.
Would using a Taco VT2218 Delta T variable speed pump with zone valves be more efficient than using a Taco ECM pump like the Taco VR1816 or 0015e3 or 007e pump and zone valves.
What is the best pump to help the system be as efficient as you can get it?
How does one pump make the system more efficient than a other?
Does Taco or anyone else have articles on these type of pumps?
What are the major differences of the Taco pumps and the Grundfos Alpha pumps?

When installing condensing boilers with zones are you using one system pump and zone valves or are you using pumps for all of the zones?

Comments

  • Zman
    Zman Member Posts: 7,569
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    Primary/secondary with the boiler controlling the speed of it's own circulator to run at maximum delta t.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
    Gordy

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