Hydronic Circulating Pumps
Circulation pumps are vital for moving liquids in hydronic heating and cooling systems, as well as solar applications, with water circulation being their primary function. Designed for dry, frost-free, well-ventilated environments, these non-submersible pumps offer three sizes to suit various needs and feature three-speed versatility for enhanced efficiency. Discover how our circulation pumps can optimize your system’s performance.
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Taco 2400-20-WB-3P 1/6HP Cast Iron Wood Boiler Circulator Pump – High Capacity, Flanged, 115V
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Reliable and Efficient Water Movement for Hydronic & Potable Systems
Choosing the right pump starts with understanding the system type—closed-loop heating or potable/open systems, then sizing for the appropriate flow rate (GPM) and head pressure (ft). Whether you need a dependable 3-speed workhorse or a high-efficiency ECM model, we’ve got you covered.
Everyday Cast-Iron Circulators for Closed Loops
Simple and dependable, these 3-speed pumps are ideal for baseboard, panel radiators, and other traditional closed-loop applications.
Taco 007-F5: The industry-standard 1/25 HP circulator trusted by pros for decades
Taco 0015-MSF3-IFC: 3-speed model with higher starting torque and an Integral Flow Check (IFC) to prevent gravity or ghost flow
ECM High-Efficiency Circulators (Smart, Low Power Draw)
ECM pumps use permanent magnet motors to reduce energy consumption—some models include Bluetooth® for setup and diagnostics.
Taco 007e: ECM upgrade that fits the 007 footprint; for closed-loop systems only
Taco 0015e3: Drop-in replacement for many 3-speed 0015 jobs; handles up to 18' head / 16 GPM
Taco 0018e: High-range ECM with Bluetooth setup; perfect for mixed emitter systems or longer runs
Bronze & Stainless Steel Circulators for Potable or Open Systems
Use non-ferrous pumps when handling fresh or oxygenated water—essential for domestic hot water recirculation (DHW) or open-loop hydronic applications.
Taco 006-B4: Compact bronze pump for domestic recirculation
Taco 2400-30-3P: Stainless steel 1/6 HP model for high-capacity DHW or open-loop jobs
Honeywell Resideo AquaPUMP® — 3-Speed & ECM Retrofit-Friendly Pumps
These versatile pumps feature twist-to-fit universal flanges for fast installations and replacements.
PC3F1558IUF00: 3-speed, wet-rotor circulator with 90° rotating flange
PC3F4344IUF00: Higher-capacity variant for inline applications
PCVF-ECM2020: Variable-speed ECM with "set-and-forget" operation
PCVF-ECM2020-LF: Lead-free ECM version for potable water applications
Circulator Pump Accessories & Service Kits
Taco IFC Replacement Kit: Restore flow-check functionality on 00 Series pumps without repiping
Union/Threaded Fitting Kit (UFS-050T): Speeds up pump replacements and future servicing
Quick Selection Checklist
System Type:
- Closed-loop hydronic → Use cast iron
- Potable/open loop → Use bronze or stainless steel
Performance Requirements:
- Confirm system flow (GPM) and head (ft) to size correctly
- Choose 3-speed or ECM for best performance at the duty point
Features:
- Need an IFC to prevent ghost flow?
- Prefer Bluetooth for easier setup?
Connections:
- Check flange size and orientation
- Use union kits to simplify installs
