External riddling grate . Effective after-burner control (tertiary-air for even greater burn efficiency) . Can be simply dismantled for ease of installation . Adjustable feet for uneven surfaces. Incorporates air wash control. Glendine 25,000 Btu/hour to Water 3Kw to Room.Will also heat room up 12 foot X 12 foot. Be environmentally friendly and at the same time save money on your heating bills with this stove. Solid cast iron design with intergrated boiler capable of heating up to 8 radiators and domestic hot water. Excellent size stove for most homes incorporating design, quality and economy.Fully warranted intergrated boiler.