Energy-efficient pumps
With modern circulating pumps being so much more efficient than pumps that are around 15 years old, Grundfos recommends that such pumps should be replaced with modern energy-efficient equivalents rather than like for like.
The UPS2, for example, is a compact high-efficiency replacement for Grundfos 15-50/60 circulators. Just one model can replace 4, 5 and 6 m versions in domestic heating systems.
The Alpha2L is designed for circulating water in domestic heating systems with constant or variable flows and in systems with variable temperature. These high-efficiency circulators can be installed in central heating and primary hot-water circuits up to 35 kW.
The Alpha2 circulator offers all the features of the Alpha2L — plus AutoAdapt setting for easy set-up and to ensure the best efficiency against changes in system demand. An LED display shows power on and electrical consumption.
