Saltfire Bignut 5 DEFRA 5kW Wood burning Stove | Cast Iron Default Title 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 . The Larger capacity ‘Bignut-5 ’ – 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.   Specifications Product Specifications Services We can offer a full HETAS compliant installation service with this stove for an additional cost. Please contact us to arrange a Free Quote.All stove installations are carried out by Rugby Stove Installations Limited.