HWAM 2640M WITH LOG STORE Opus Harmony and the ‘quad’ element of and the ‘quad’ element of the design effectively disperses the stress of the lid into four spots These tightly fitting panels ensure that there are none of the cold corners or panel gaps that you see on other stoves and which leak heat to reduce internal temperatures so that it affects overall efficiency and increases emissions Mounting the plinth (HWAM 2610 & 2620) 3% ErP Energy Rating A+ Defra Smoke Exempt: Yes DiBt Tested Yes Fuel: Seasoned wood logs (less than 20% moisture content) Airwash: 3 Way (top and both sides) Air Controls: Single slider plus Hwam Autopilot