Nice, had parents place done couple of years back when they started the SMETS2 smart meters, they have the small SSE meter. They did the same took meter readings, replaced and started from 0.
On your bill, it will likely have old meter number and reading & costs and then the new meter number with the readings and cost.
My place, i only got Elec switched to a smart meter, first SMETS1, then later got changed to SMETS2. Haven’t bothered with my gas as my gas supplier is a small company and they not doing smart meters yet but gas meter box is outside the property so can be read any time easily. Also i seen some SMETS2 gas meters look very small, not the size and depth of your one (which mine is like at the moment). Its one of those small brown triangle type boxes so I’m a little dubious of which type they would replace with. I believe the small ones the battery only lasts 5 years? The gas meter also connects to the Elec meter I believe to send readings back.
Kev
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