I've been doing that and reading data for about 3 months plus and still haven't found the figures for most models.

This gives hair the kind of lift and bounce that you can normally only achieve with a professional blow-dry. Just as there are many types of system to consider (old or new, underfloor or traditional radiators, micro or mini bore pipe) there are many solutions available to the installer, each one with a different feature or benefit to assist the system operation.While there's a lot to be said for the efficacy of a great hair-thickening shampoo or conditioner, a lot of these science-led formulations take time to work. At the beginning of this year, Grant UK launched its combined volumiser/low loss header for installation with the Aerona³ air source heat pump. The low loss header is just one way but hopefully it provides engineers with an installer-friendly solution to future-proof their heat pump installations. Tresses can be thinner just at the ends, sparse at the roots, or it might just be looking a bit lacklustre and flat all over.

It might be that it is just naturally fine due to genetics, or maybe it’s been damaged by colour and styling.The innovative spray to powder formula makes it super easy to apply – we just gave the bottle a good shake and spritzed it all over our hair before giving it a quick zhoosh with our hands.

The spray applicator made it easy to cover every strand, and there was not even a hint of heaviness or stickiness. As you might expect, ghd’s range of styling products are a great companion to heated styling tools, and we loved this easy to use root spray. This spray is a bit of a beauty-insider secret, and I've spotted it in many hairstylists' kits backstage at fashion week.

One reviewer wrote, "I was about to give up on ever having voluminous hair until I found this product.