Alpha 2 L
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Grundfos ALPHA 2 L is an electronically controlled circulation pump for central heating and underfloor heating in family houses and apartments. The built-in electronics automatically adjust the output to the current heat demand, so the pump uses significantly less electricity than standard three-speed models and runs very quietly.
The pumps are available in 15, 25 and 32 mm sizes and in installation lengths of 130 or 180 mm – choose the model according to the pipe diameter and flange spacing in your system.
Frequently Asked Questions
- How do I choose the right size of the Alpha 2 L pump? The first number in the designation (15, 25, 32) is the connection diameter, the second is the maximum head in metres, and the last is the installation length between the flanges (130 or 180 mm).
- How much more efficient is the Alpha 2 L compared to a standard pump? Thanks to electronic output control based on current demand, it achieves significantly lower electricity consumption than three-speed pumps with a fixed output setting.
- Is the Alpha 2 L also suitable for underfloor heating? Yes, thanks to smooth output control it is also suitable for underfloor heating circuits with lower flow rates.