Hi all
Following some advice earlier this year on here, I finally have new boiler due to be fitted soon. I’ll be fitting a low loss header as advised due to loss in Vaillant 637.
I currently have a Grundfos usp2 on my open vent system which I was planning on using for the time being until the correct pump is selected. I have 3 zones; dhw, upstairs heating (plus loft) and downstairs heating. I’m wanting to have a single pump in the secondary circuit.
Any recommendations? Many thanks in advance
Following some advice earlier this year on here, I finally have new boiler due to be fitted soon. I’ll be fitting a low loss header as advised due to loss in Vaillant 637.
I currently have a Grundfos usp2 on my open vent system which I was planning on using for the time being until the correct pump is selected. I have 3 zones; dhw, upstairs heating (plus loft) and downstairs heating. I’m wanting to have a single pump in the secondary circuit.
Any recommendations? Many thanks in advance