Getting the most from your heat pump, healthy buildings & first US passive retrofit

Hi everyone, the new issue of CI has gone to print and should be out by early next week. Having just caught up on what's been happening in the green building and energy world for the first time in a few weeks, here's some stories that caught my eye. 

How to get the most from your heat pump: Treehugger

Fascinating profile of Honk Kong's rooftop villages: Sustainable Cities Collective

Top ten green building prioties: No 10, make it easy: Green Building Advisor

Green buildings may boost occupants' health and productivity: Green Building Advisor

The US's first certified passive house retrofit: Green Building Advisor (more here

San Francisco unveils striking-solar powered stadium: Inhabitat

Report questions whether rainwater and greywater harvesting are really green: Energy Saving Trust

Should building regulations be less impenetrable and more consumer-friendly? Energy saving Trust

Paris to heat buildings using metro: Guardian

Profile of Britain's first recycled theatre: Guardian