Bring your Old-Fashioned Fireplace right up to date with an Elegant and Fabulous Range of High-efficiencyHole in the Wall Gas Fires (HIW) from Nexus. We offer a range of traditional and modern designs, convenient remote control, and energy efficiency models that means your living room will stay cosy with no central heating. All the models are available in different styles of open-fronted & glass-fronted fire view. HIW fires can be installed in your existing chimney with very little construction work. However, the raised models may require the old opening to be sealed before a new cavity is opened above. Even if you don't have a chimney, you can still install a HIW fire by choosing from our range of balanced flue Hole in the Wall gas fires, which can be fitted into a 'false' chimney breast and you can enjoy the realistic flames.