We are well versed in recycling plastics, glass and paper, and understand the positive effect it has on the environment. But the concept of recycling heat is a new technology that intrigues us. At Ceba Solutions, we love innovative technologies, especially those in the green sector that contribute to lowering carbon emissions while cutting costs for your business.
How does it work?
Dext Heat Recovery Units allow you to pay for heat ONCE and use it TWICE. Their new technology works by collecting all the generated heat from the cooking process, room heaters, body warmth, lighting and equipment and then filtering and storing it, so that it can be used for other purposes like restaurant heating and water. This process means the heat generated isn’t lost to the atmosphere.
Dext have two systems, the first, DextTherm acts as a splash back which collects heat from equipment like chargrills, electric grills and barbecues grills and transfers it to a storage cylinder to pre-heat water. Think of it as an indoor Solar Panel within the kitchen, absorbing excess radiant heat.
DexThermic is a Dirty Air Heat Exchanger, which is designed to be installed within contaminated air extract systems. This system recovers heat waste from processes where conventional heat recovery methods foul up or are prone to failure.
The Nandos one year trial
Nandos and Dext worked together in 2009 to develop a heat exchanger, now known as DextTherm, that could be doubled up as an easy-to-clean splashback, sitting conveniently behind their high heat emitting equipment. It was then tested in Nando’s Didsbury branch in Manchester. It was an incredible success.
According to 5 years of data gathered at the Didsbury branch, Nando’s should see savings of 608MW equal to £152,022*, which is huge. *Rates based on government data on 03/05/2023
It has been so successful, there is now at least one DextTherm, in more than 400 Nando’s restaurants across the UK.
But they aren’t the only company doing it
Swedish company Enjay launched their heavy duty heat exchanger to the UK market this year, and a number of major restaurant brands including Burger King and Turtle Bay have already integrated its systems into their kitchens. Their Lepido uses coils instead of fins in traditional heat exchangers, which allows dirty air to pass through without getting clogged with soot and grease. At Europe’s biggest pancake factory, the system will recover 1,500,00 kWh per year, which is energy that can be reused instead of wasted. That’s a huge energy and cost saving!
This technology is still in its early stages, and the systems are not currently readily available to purchase from suppliers. We anticipate that as the demand for heat exchangers increases, it will become a straightforward and accessible piece of equipment to order and install for all commercial kitchens. If you’re interested in learning more about installing a Heat Recovery system in your kitchen, feel free to reach out to a member of our expert team for further information.