The Bignut 5 is a physically larger version of the Peanut, still rated at 5kW nominal (official output), but with the extra capacity, more physical size and takes longer logs. The Bignut 5 has a variable output range from 2kW up to a maximum of 8kW with easy to operate fingertip controls. A huge viewing window for superb views of the fire. Full cast-iron inner secondary lining plates (fire bricks), for maximum heat retention and are extremely robust. The Peanut range features all-cast-iron construction for maximum heat-retention and ultra-clean-burning, by keeping the belly of the fire hot even during ‘low & slow’ burning. Cast Iron construction also makes for an extremely rugged stove with long life.