High Efficiency Hot Water Circulators Lowara Ecocirc N

Overview Specifications Performance Curves Solutions Documentation & Tools Technology


Product Features
  • High efficiency pumps with ECM-technology and permanent magnet rotor
  • Low power consumption
  • EEI ≤0.18
  • Stainless steel pump housing
  • Control modes: 
    • Proportional Pressure
    • Constant Pressure
    • Constand Speed
  • Automatic “air purge”
  • Plug
  • Insulation shell
  • Flow rate: up to 4,5 m³/h
  • Head: up to 8 m

ecocirc N – a smarter choice

The Lowara Ecocirc N circulation pumps are designed for water circulation in domestic hot water systems. With 14 models and multiple control modes, the new Ecocirc range offers a smarter choice in the domestic hot water circulators market by combining high efficiency, simplicity and reliability in a single cost effective package. Compact and easy to install, all models feature a unique “one turn” knob to set up control modes and speed settings. An interchangeable plug connection, automatic air-purge and a multicolor LED come as standard. The full Ecocirc range reaches an EEI level ≤ 0.18.

The pump can be used for:

  • Refurbishment or extension of existing systems
  • Single-family houses or apartment buildings
  • Domestic hot water systems



  • Best-in-class energy efficiency (EEI ≤0.18)
  • ECM motor for intelligent speed control
  • Up to 80% lower power consumption
  • Optimized hydraulics


  • Multifunctional “one turn” knob
  • Compact and easy to install


  • Robust proven design
  • Stainless steel pump housing
  • Dry-run protection
  • Warnings and alarms visualization


  • Insulation shell as standard




Performance Curves

Performance Curves

Ecocirc N
Ecocirc N


Recommended Solutions

Documentation & Tools

Documentation & Tools

Interactive Tools

Lowara Drawing Center

Downloadable drawings in 2D, 3D and BIM formats for Lowara products

Lowara Circulator Replacement Guide

An extensive guide with like for like replacements for wet rotor circulators





Just set and go!

Two ranges, 42 models, multiple control modes and an easier life – with zero call-backs! Our new ecocirc and ecocirc+ ranges offer a smarter choice in the residential circulators market by combining high efficiency, simplicity and reliability in a single cost effective package. Compact and easy to install, all models feature a unique “one turn control knob” to set up control modes and speed settings. An interchangeable plug connection, automatic airpurge and a multicolor LED come as standard. The full ecocirc range reaches an EEI level of ≤0.18.

An even smarter choice

Our ecocirc+ version takes energy savings, simplicity and control to a whole new level. Featuring a digital display and additional operating modes, like Night Mode and eAdapt, it automatically analyzes and adapts itself to the optimal settings, reducing power consumption by up to 80%. Bluetooth wireless technology allows you to stay in control from a mobile phone, tablet or laptop.

Robust, reliant and cost-efficient

The ecocirc and ecocirc+ ranges are precision engineered by Xylem, based on more than half a century of R&D expertise and real-life testing experience.

Our ambition in the HVAC sector is, quite simply, to give you a smarter choice of circulation pumps – easier-to-install units that just keep on running, delivering high efficiency and good value for money, day in and day out.

Cutting electric bills and CO₂ emissions

Studies show that 10–15% of the electricity consumption in domestic households is due to heating circulators. The ecocirc motor and hydraulics are carefully engineered to minimize this. All ecocirc pumps feature high-efficiency ECM motors that allow energy savings of up to 80% compared to conventional circulators. The EEI level, rated at ≤0.18, ensures a fast payback on investment. 


1. Always safe

The built-in dry-run protection stops the pump and prevents damage if it runs without water.

2. High visibility

A larger, easier-to-read digital display facilitates quick viewing of the pump’s operating status, warnings and alarms (ecocirc+ range).

3. Connectivity

Bluetooth wireless technology for external control and monitoring via laptop, smartphone and tablet (ecocirc+ range).

4. Always hot and protected

The insulation shell keeps the temperature of the pumped liquid and surrounding environment at just the right level and provides protection during transportation.

5. Automatic air purge

The automatic air purge mode facilitates quick and immediate air venting for safe operation.

6. Best-in-class energy efficiency

The high efficiency ECM motor and optimized hydraulics keep your operational costs to a minimum. EEI level ≤ 0.18.

7. Economical operations

Night Mode and eAdapt operational modes ensure optimal comfort at the minimum cost (ecocirc+ range).

8. Quick and easy to install

Interchangeable plug for electrical connection. The female plug is also compatible with male plugs from circulators previously installed by third parties.

Ready, set, go

Simplicity is key for the new ecocirc range. Lightweight and easy to install, these robust circulators are all equipped with a convenient, multifunctional control knob to select functional modes and speed settings. You also get just the right level of display information to monitor the circulator’s status. This is ecocirc, a smarter choice.


1. Constant pressure (1-2-3)

Recommended for underfloor heating.

2. Proportional pressure (A-B-C)

Recommended for thermostatic radiator valves.

3. Fixed speed (I-II-III)

Recommended for boiler feed, single-pipe heating systems or systems with hydraulic separators.

4. eAdapt

Automatic set-up of circulator performance to ensure minimum power consumption.

5. Automatic air purge

Facilitates quick and immediate air-venting for safe operation.

6. Digital display

The 3-digit display alternates automatically to show power consumption, head and flow rate.

7. Multicolor LED

Green: Circulator is working properly
Green (blinking): Automatic air-purge is running
Yellow: Night Mode function (ecocirc+ range)
Yellow (blinking): Stand-by
Red: Pump failure or dry run

8. Connectivity LED

Green: Bluetooth wireless technology to a remote interface.

9. Night Mode and Connectivity button

Night Mode – to be activated with one of the other functional modes – ensures minimal power consumption at night time. Use the Bluetooth wireless technology to switch to a remote interface and set up the circulator.