Heat Recovery at the Bloomsbury Hotel For further reading, we have a PDF Case Study. Click here to open the Bloomsbury Case Study. The case study will open in a new window. Also in this section… Balancing Heat in Future Buildings Heat Recovery – the basics Video about Daikin's VRV plugin for Virtual Environment Software Video about Daikin VRV IV with Variable Refrigerant Temperature How do skyscrapers keep their cool?