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- 3 Nov 2015
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I am coming up to my boiler service shortly and I am finally fed up with living with my current Alpha2 15-60 which is too small for my Vaillant 438 boiler. My boiler has been derated to 18Kw.
My plan is to ask my plumber to change my current pump with a new one. I understand the Alpha2 is a 130 so to avoid unnecessary pipe work changes I need another 130 pump.
My options appear to be a UPS or a UPML.
What is the difference between those two?
My plan is to ask my plumber to change my current pump with a new one. I understand the Alpha2 is a 130 so to avoid unnecessary pipe work changes I need another 130 pump.
My options appear to be a UPS or a UPML.
What is the difference between those two?