We've recently moved into a house with an Aga GC3 cooker; though have no experience with this type of oven. Reading up on Agas, people talk about them being left on all the time; though this seems like a waste of gas for our usage (1 cooked meal each evening; unused the rest of the day). When people say they can be left on all of the time I'm not sure if they're envisaging scenarios where the Aga is an old solid-fuel style (where this would have been far more practical), or cooks who are baking throughout the day, or making use of the waste heat for drying their wellies and wet dogs.
We've found that it takes about 2 hours to get up to the required temperature for cooking; so if not left on all the time requires a lot more planning than the gas hobs we're used to; but leaving it on feels wasteful.
Is it best (in terms of efficiency / our described usage pattern) to leave an Aga on full time (e.g. is it more efficient to keep it at temperature than to have to bring it up to temperature each day), and if left on, when not in use is it best to keep it on the Full setting, or to put it to Low Heat or Pilot Light mode?