Description Charnwood Arc 7 Innovative combustion system with outstanding efficiency Beneath the Arc’s clean, modern lines lies an innovative new combustion system that ensures the stove burns exceptionally clean with outstanding efficiencies of over 80%. So much so that the Arc exceeds the new Eco Design standards and DEFRA exemption limits. RATED OUTPUT  7kW to room (range 5-11kW) NET EFFICIENCY  81% Wood, 79% Solid Fuel FLUE OUTLET  Top or Rear 150mm (6”) dia MAX LOG LENGTH  325mm (12.5”) WEIGHT  150KG Low, 170KG Store Stand MIN DISTANCE TO COMBUSTIBLES  Side: 270mm Rear: 150mm Technical Specifications