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You're a star mate. Thankfully no I can't smell any gas just seemed weird seeing the reflection on the wall and worktop, not had that before with my previous hob.Looks normal to me. If you want to reassure yourself just check the gas rate, convert to kW and compare with the manufacturer's values in the instruction book. From memory, the burners visible in your first video have maximum outputs of 1kW, 1.75kW and 3kW.
Edit: You shouldn't be able smell any gas while it is operating. (I don't think that's what you meant but I shouldn't assume things where safety is involved.)
Reply to the thread, titled "New hob - alot of gas" which is posted in Gas Engineers Forum on Plumbers Forums.
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