The Air 2 is the larger freestanding Studio Air fire. Its 400 mm log capacity and 8.2 kW output distinguish it from the 5 kW Air 1. For a built-in finish at this size, look at the Air 2 Inset.
Carl self-certifies every installation and notifies Building Control on your behalf, so the work is signed off properly and your certificate of compliance is issued for your records.