We're considering a townhome that has the hob on the island and has a downdraft extractor. We'd want to replace it with an overhead extractor but am trying to find out how much it would be to do so. The current downdraft extractor vents to the outside.
You would need to contact a HVAC contractor to install it and vent it. Then hire an electrician to wire it. Cost depends on how close a constant power source is to the hood fan and if its easily accessible.
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