The quality of cast iron is measured by its mass.
The 700T is a unit which can take logs up to 80cms long and its twin, quiet, low consumption fans distribute the heat 5 times more efficiently than any non fan powered model.
A large Vitroceramic glass door allows the viewing of the flames to the maximum.
A medium quality fire insert of this size would weigh around 110kgs, the Supafire weighs 150kgs.