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Changing flooring in existing radiant setup.
We are considering replacing the wood flooring in one area of our home with tile. The room is an extension on the back of a cape: a kitchen, dining, living room. It is a single zone, 3 loop, sandwich install with aluminum plates. 3/4" qs oak covers it now. We were thinking of going with tile laid on 1/2" backer board.
The attached image shows the floor specs. It is room 1.
How will this change effect heat loss, or any other aspect of heating? I am in the early stages of a gas conversion. Thanks.