Retro-fitted 3" diameter core ventilator for low kilowatt stoves. Unique draught-reducing panel disperses air evenly into the room for improved comfort. Paint or wallpaper the internal panel to match room décor for a discreet appearance. External grille UV stabilised to slow down the effects of sunlight. HETAS Approved ventilator for solid fuel appliances. This HETAS Approved mini retro-fitted combustion air vent for stoves is just 77 mm in diameter and suitable for low kilowatt stoves requiring minimal ventilation. It may also be suitable for stoves up to 10KW in properties built prior to 2008. The unique draught reducing panel disperses air evenly for improved comfort. The mini internal panel can be painted or wallpapered to match room décor for a discreet appearance. Weight: 0.82011961464 pounds.