Air Conditioning

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<p>What's the best way to keep your home cool?</p><p>As heatwave after heatwave pushes temperatures higher across the UK and Europe, air conditioning has become a serious topic. Listener Rachel is one of many people who have turned to a portable air conditioner for relief. About the size of a dehumidifier, these units cool a room by drawing in warm air, chilling it, and venting the excess heat outside through a hose, usually attached to a window.</p><p>But with hotter summers forecast, Rachel is wondering whether it's worth investing in a fixed, or "split", air conditioning system instead. These systems use an indoor unit paired with an outdoor condenser and are increasingly common in homes across Europe. She wants to know: how much do they cost to buy and run? Are they difficult to install? And how noisy are they in everyday use?</p><p>Then there are the cheaper "air coolers" that claim to lower temperatures by blowing air over cold water or ice. Do they genuinely cool a room, or are they simply fans with clever marketing?</p><p>To find out, presenter Greg Foot is joined by Rachel and Professor Richard Fitton, Technical Director of the Energy House 2.0 test facility at the University of Salford.</p><p>All of our episodes start with your suggestions. If you've spotted an advert, trend or wonder product that claims to make you happier, healthier or greener, email us at <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or send us a voice note on WhatsApp: 07543 306807.</p><p>RESEARCHER: JULIA RAVEY PRODUCERS: SIMON HOBAN AND GREG FOOT</p>