Description
Product Overview
The Taco 1915E1E1 is a versatile and reliable cast iron circulator pump from the popular 00e Series, designed for efficient performance in residential and light commercial hydronic heating and cooling systems. With a robust 1/3 Horsepower, single-phase motor, this pump delivers the perfect balance of power and efficiency for a wide range of applications, from zone circulation and boiler feed to radiant floor heating systems.
Featuring a durable cast iron construction and a high-temperature mechanical seal, the 1915E1E1 is built for long-lasting operation in closed-loop systems. Its compact, close-coupled design simplifies installation in space-constrained areas, while the standardized flange connections ensure compatibility with common hydronic system components. As a staple in the HVAC industry, this Taco circulator is known for its dependable performance, ease of service, and broad availability of replacement parts.
For homeowners and contractors seeking a proven, no-nonsense circulator for standard hydronic applications, the Taco 1915E1E1 offers trusted performance straight out of the box.
Technical Resources & Guides
Technical Specifications
| Specification Category | Detail |
|---|---|
| Manufacturer Part Number | 1915E1E1 |
| Series | Taco 00e Series |
| Motor HP | 1/3 HP |
| Motor Speed | Single-Speed (1725 RPM) |
| Voltage/Phase | 115/208/230V, 1-Phase |
| Connection Size | 1-1/4″ Flanged |
| Connection Type | Flanged |
| Maximum Working Pressure | 125 PSI / 8.6 Bar |
| Maximum Temperature | 240°F / 116°C |
| Construction – Casing | Cast Iron |
| Construction – Impeller | Cast Iron |
| Shaft Seal | Mechanical Seal |
| Mounting | Close-Coupled |
What’s Included
| Included | Not Included / Required Separately |
|---|---|
| ✓ Complete Close-Coupled Pump Assembly | ✗ Isolation Flanges |
| ✓ Flanged Connections | ✗ Gaskets |
| ✓ Mechanical Seal | ✗ Power Cord |
| ✗ Mounting Hardware |
🛠️ Recommended for a Complete Installation
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Isolation: Taco 1-1/4″ Flange Isolation Kit
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Control: Taco Zone Control Panel
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Accessories: Taco Flange Gasket Set
Comparison Table: Taco 00e Series vs. Alternative Pumps
| Feature | Taco 00e Series (1915E1E1) | Wet Rotor Circulator | High-Efficiency ECM Pump |
|---|---|---|---|
| Application | Residential/Light Commercial Hydronics | Residential/Commercial Heating | High-Efficiency Systems |
| Efficiency | Standard | Good | Excellent |
| Serviceability | Excellent (Standardized parts) | Good (Cartridge replacement) | Fair (Often unit replacement) |
| Noise Level | Moderate | Very Quiet | Very Quiet |
| Cost | Budget-Friendly | Moderate | Premium |
| Ideal For | Zone pumps, boiler loops, replacements | Quiet applications, new installations | Energy-conscious applications |
Frequently Asked Questions (FAQs)
Q1: What applications is this pump suitable for?
A: The Taco 1915E1E1 is ideal for various hydronic applications including:
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Zone circulation in residential heating systems
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Boiler feed and return loops
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Radiant floor heating systems
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Snow melt applications
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Light commercial heating systems
Q2: Is this pump suitable for potable water systems?
A: No. This pump is designed specifically for closed-loop hydronic heating and cooling systems. The materials are not certified for potable water applications.
Q3: What maintenance does this circulator require?
A: Key maintenance includes:
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Periodic inspection for leaks at the mechanical seal
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Ensuring proper system water quality to prevent scaling
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Checking for unusual noises or vibrations
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Verifying proper electrical connections
Q4: How do I determine if this pump is properly sized for my system?
A: Proper sizing requires calculating your system’s:
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Flow rate requirements (GPM)
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Total head loss (feet of head)
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Temperature requirements
Consult with an HVAC professional or use Taco’s pump selection software for accurate sizing.
Q5: Can this pump be used with variable speed controllers?
A: No. The 1915E1E1 is a single-speed pump and not designed for variable speed operation. For variable speed applications, consider Taco’s ECM-based circulators.
Internal Link: Learn more about proper pump selection in our guide How to Size a Circulator Pump.
Pros and Cons
| Pros | Cons |
|---|---|
| Proven Reliability: Industry-standard design with decades of proven performance | Single-Speed Only: Lacks energy-saving variable speed capability |
| Easy Serviceability: Readily available parts and straightforward maintenance | Standard Efficiency: Less efficient than modern ECM pumps |
| Budget-Friendly: Cost-effective solution for standard applications | Cast Iron Construction: Heavier than composite-bodied pumps |
| Wide Compatibility: Standard flanges work with common system components | Not for Potable Water: Limited to closed-loop hydronic applications |
| Broad Availability: Easy to source and replace when needed | Moderate Noise Level: Not as quiet as wet rotor circulators |
Conclusion & Ideal Use Case
The Taco 1915E1E1 represents a solid, reliable choice for standard hydronic heating and cooling applications where proven performance and serviceability are prioritized over premium features.
This pump is perfectly suited for:
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Residential heating zone circulation
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Boiler system feed and return
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Radiant floor heating systems
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Light commercial HVAC applications
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Replacement applications for existing 00e series pumps
If you need a dependable, serviceable circulator for standard hydronic applications and value simplicity and reliability over high-efficiency features, the Taco 1915E1E1 is an excellent choice.
🔗 Official Technical Resource
For complete technical specifications, performance curves, and installation instructions, visit the Taco Comfort Solutions Product Support Page for the most accurate and up-to-date information.













