Grundfos Comfort PM Hot Water Circulator Pump in Private Homes – Land and Water Technology

Grundfos Comfort PM Hot Water Circulator Pump for Private Homes


The Grundfos COMFORT PM range for hot water recirculation, low noise permanent magnet motor allows the energy consumption of to be reduced to as little as 5-7W.

Combined with the intelligent AUTOADAPT function this sets new standards for
energy-efficient hot water recirculation in private homes.

Thanks to the new Grundfos COMFORT range now features three variants for hot water recirculation. All three Grundfos COMFORT pump with AUTOADAPT, Digital Timer  and the fixed speed COMFORT pump can significantly reduce the power consumption. In fact, the electricity costs of operating in AUTOADAPT mode requires a mere 1-2 €* per year. Compared to conventional pumps that run continuously this equals a cost reduction of up to 96 %. Moreover, heat energy savings amount to as much as 48 %.

The principle of the AUTOADAPT function is really very simple.
In the course of only a couple of weeks the COMFORT pump learns the hot water consumption pattern of the household and adapts to it. The stored data ensures that the pump runs only when required – which significantly cuts back on both water and power waste. Should the consumption pattern change, e.g. during holidays, the COMFORT pump will recognizes the standstill after 24 hours and automatically adapts to holiday mode. On the return of the occupants, the intelligent pump will automatically resume the same  consumption pattern
as before the holiday. Consequently, the access to instantly hot water is never

Minimise water waste

All Grundfos COMFORT pumps – with or without the AUTOADAPT function – combined with a return pipe deliver instantly hot water all over the house. This eliminates the expensive – and annoying – wait for the water to get warm and reduces the annual consumption of domestic water. The results are lower costs while still ensuring the comfort of instantly hot water.



Easy installation

All three Grundfos COMFORT PM pumps AUTOADAPT, COMFORT Digital Timer and the continuously running COMFORT pump are equally compact and designed to greatly facilitate .installation – even in confined spaces. Connect the plug and start pumping


The AUTOADAPT function has been developed for domestic hot-water systems with hot-water tanks as primary heating source.
In domestic hot-water systems with integrated temperature control functionality
for raising and lowering the temperature on the recirculation pipe, Grundfos
recommends using the fixed speed COMFORT models.

To get the full advantages of the COMFORT AUTO model with the AUTOADAPT feature, Grundfos recommends installing the pump in systems with hot-water storage tanks.

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  • Louis Nasr