In this episode, David opens our eyes to the crazy impact the way we heat and cool our homes is having on the environment. He shares the details of the Maintain, Insulate, Replace, and Electricity (MIRE) approach that enables you to save money while helping the planet and setting your home up to be ready for the future. David also talks through the pros and cons of heat pumps including how to work out if installing one is the right option for your home.