ᐅ Replacement of Heating Pump / High-Efficiency Pump for Gas Heating System

Created on: 14 Jun 2023 13:31
A
Alibert87
Hello everyone, I am currently renovating our house. At the moment, I am wondering what should be updated or renewed for better energy efficiency.

We have a gas condensing boiler about 10 years old, underfloor heating in the basement, and radiators upstairs. There are 4 heating pumps from Wilo installed, plus one pump for solar thermal.

The pumps are functional, but according to the plumber, they are no longer up to date. He recommends the Evosta 3 pumps.

Is it worth investing in this? Is the replacement costly, and which pumps would you recommend?

These are currently installed:


Thanks and best regards
WILO-Umwälzpumpe mit grünem Rand, zentralem Metallknopf, Typ Star-RS25/6.

Nahaufnahme eines Pumpenmoduls mit roter Einstellschraube und Typenschild (WILO).

Grüne WILO-Circulatorpumpe Star-E mit Etikett und Rohranschluss

Nahaufnahme einer WILO Umwälzpumpe mit grüner Front, Rohranschlüssen und Druckmessgerät darunter.
R
RotorMotor
21 Jun 2023 12:00
I can’t say for sure. Ideally, they should be regulated, meaning adjusting the flow based on the delta T. Overall, though, it really depends on your hydraulic system which pressure and flow the pumps need to deliver.

It’s best to consult an expert for this.