Why do I need the more expensive Class A pump?

In order to maximise circulating pump efficiency we now offer the Wilo Yonos Para RS25/6 – RKA.

This incorporates a high efficiency permanent magnet motor and powerful electronics which both help to reduce energy consumption and also protect the motor in use.

The Wilo Yonos Para more than meets the requirements of the Energy using Products directive (EuP). Its Energy Efficiency Index rating of 0.2 is clearly ahead of the requirement of 0.23 by 2015.