Staying in the loop: identifying performance gaps

Feedback loops identify what is going routinely wrong in buildings and give valuable insight into how future building performance can be improved. Susie Diamond and William Box explain the concept, and discuss how it could be applied to ventilation

Luxury awaits: turning the Old War Office into an upmarket hotel

Transforming the 1,000-room Old War Office building in London into a luxurious Raffles hotel has been a momentous project for Aecom engineers. Andy Pearson discovers how an extensive services refit was in keeping with the magnificence of the makeover

What’s in store? Innovation in thermal storage

Researchers at the universities of Bath and Swansea claim to have made a breakthrough in thermal storage using a material derived from renewable seaweed. Molly Tooher-Rudd talks to Swansea University’s Jack Reynolds and Jonathon Elvins to hear how it could be used to store recovered heat in buildings

Taking the waters: recovering heat from the Roman Baths

Heat from Bath’s hot springs is being used to warm surrounding buildings including the new Clore Learning Centre. Andy Pearson finds out how Buro Happold extracting heat from the mineral-rich waters of the Roman Baths

Heat recovery at the University Arms Hotel

Cambridge’s University Arms Hotel refurbishment had to accommodate a complex heat recovery system on a constrained site with strict planning restrictions. Nuaire’s Andrew Bott explains