Is Britherm pump a better choice than Grundfos

[John.g]

Very good, forgot to ask you about the old pump since you have still got it, is it just a 3 speed traditional circ pump and what is/was its current setting??., presume its a 6M pump, can't find any pump curves which would be interesting.

 

[raidac]

Very good, forgot to ask you about the old pump since you have still got it, is it just a 3 speed traditional circ pump and what is/was its current setting??., presume its a 6M pump, can't find any pump curves which would be interesting.

The old pump was multihead 111 made by circulating pumps Ltd. I'm not a plumber or gas engineer so I can't coment on existing pump speed. I'll wait and see what Valliant say.. Unfortunately my trust level is low with gas people so I'm checking as much as I can with Vaillant

 

[John.g]

Can you post a few photos of the old pump, nameplate etc, it may have a switch with 1,2,3 on it or I,II,III, lf so note the setting. if it's still working and has LEDs, a photo while running of these LEDs.