5 years old - in excellent condition - purchased from Energy Options in Whakatane - 81% efficiency - 0.4 Emmissions / kg - clean air approved. retail price $3,999 (Aug 2011 price list). Model Enviro 3Bi FPI. No flu Kit. We have purchased a bigger model so this is now awaiting a new owner. Suit someone who wants to heat their house at 50% of the price. Its in great condition. Purchaser must pick up from Whakatane region.Owners and Technical Manuals plus Operating Instructions and Cleaning Procedures all provided.