I nearly suggested something else to the awkward sod.You might want to suggest CO and heat alarms (for any gas boiler and kitchen) as well.
Not a bad idea though, top. Trouble is the budgets. They allow for as little as possible at the design stage and expect the tradesmen to bend over backwards. It's about priorities, so safety should be at the top of the list. The all singing, all dancing bog costs more to buy than my full job. (it's bloody good though, not that I've tried it).