Worst installation , only one person came for installation that too was not familiar with the process of installation. He drilled the hole without seeing the actual height required for alignment. I never expected such a bad service from elica. Never recommend anybody to buy Elica chimney. There are many problems with the chimney , the power cord is too small to reach the power point. the cover is giving shabby look to your modular kitchen Only 6 inch diameter gas pipe can be fitted with the chimney.