@roslawrence2012 - Hi Ros, the Kw rating on this fire (the Aether) is 8.2kW.
These fires warm the home beautifully as the fire generates both the direct heat from the fire itself and radiant heat from the firebox & lower flue which both heat right up - potbelly style.

If you would like any further information please don't hesitate to get in touch:
http://www.aurorasuspendedfires.com/let-us-help-you/talk-to-us/

Cheers,

Chloe.