DEFRA Approved Stoves for Smoke Controlled Stove Areas Smoke-Controlled Stoves are DEFRA approved for use in smoke exempt urban, town and city zones.The Aduro 9-5 is a tall stove with an impressively large glass area. In the new Aduro 9-5 the combustion chamber has been raised in order to acheive easier handling and a perfect view of the flames. In spite of the height the soft and organic lines give an air of lightness to the stove. Underneath the combustion chamber there is a large storage area behind the door. The Aduro 9-5 has the same effective combustion chamber which is found in the other wood burning stoves in the Aduro series. And the unique Aduro-tronic technology makes the oven easy to operate, the Aduro 9-5 is a C02 neutral heat source which lives up the strictest environmental standards.