The integrated control panel has a range of options, allowing the installer to change the mode of operation between fixed speed, constant pressure and proportional pressure modes. The pump is designed to modulate its speed when thermostatic radiator valves are closed in order to reduce both noise and energy consumption. The inline distance between the ports is 130mm, allowing easy replacement of older pumps with the same measurement. The pump is also available with an optional insulation shell to further enhance energy efficiency, preventing heat loss. As a Grundfos Authorised Distributor, Tradepumps are able to offer this product with a 5-year manufacturer's warranty.