The WoodMaster 4400 heavy-duty wood furnace is ideal for larger homes or home-garage combinations. It uses wood to generate affordable, clean, safe heat and is compatible with most existing and new heat systems. This model heats up to 5,000 square feet, plus providing efficient water heating. Its larger fuel door makes it easy to load, which most owners do once a day. It kicks out efficient Btu levels to reduce heating costs dramatically. Contact: www.woodmaster.com.