POLYPIPE’S HEAT RECOVERY UNITS PROVE POPULAR WITH HOUSING ASSOCIATIONS Polypipe Ventilation, provider of energy-saving domestic and light commercial ventilation systems, has supplied one if its largest orders for its heat recovery systems. The order for 98 HR01Ws has come from Bugler Developments for two housing association projects with Thames Valley Housing Association and One Housing Group. Energy Saving Trust Best Practice compliant and SAP Appendix Q rat...