The Energy series is a heat recovery ventilation appliance with an extremely efficient counterflow heat exchanger at a heat recovery rate of 97%. It has low watt EC motors (electronically computated) for minimal electrical consumption. What's more, it is equiped with a fully modulating summer bypass as standard, so heat won't be recovered on those hot-summer nights!

The entire Energy series has achieved excellent results in SAP Appendix Q and the GES Energy is also the recipient of the Energy Saving Trust best practice award in Appendix Q and certification from Passiv Haus - a great achievement.