Royal Fire™ 4.2kW Steel Eco Multifuel Stove. 1 x Royal Fire™ 4.2kW Steel Eco Multifuel Stove. Width: 38.7cm, Length: 32.8cm, Height: 58.5cm. Weight: 56.5kg. This stove has a capacity of up to 4.2kW output and can be fuelled by multiple sources such as Wood, Charcoal and Smokeless Fuel.