Background The property is situated in Alles-sur-Dordogne , South West France . The property is undergoing renovation, has poor insulation and single glazed windows. It is 300m3 overall with 16 rooms ( 7 bedrooms ) and has 6 occupants ( 2 adults , 4 children ). The original heating system was a 35kW oil boiler that provided domestic hot water and central heating together with a 14kW Villager wood stove. With the rise in oil prices ( 2009) the annual fuel cost was over 3000€. Replacement Heating System Requirements. To be more cost effective so the the central heating could be used without worrying about the cost involved. With 4 young children , domestic hot water has to be plentiful. To heat a swimming pool  ( 10m x 5m ) New Running Costs.   Central Heating / Domestic Hot Water  -  October - March       700 - 800 € Domestic Hot Water / Swimming Pool Heating - March - October        FREE (maybe the odd burn for a boost )   This is based on around 20m3 of mixed oak and chesnut sourced locally. An average of 2 burns per day - Mon to Friday , 3 burns - Sat and Sun. Requirements Achieved.   Huge financial savings ( over 2000€ per annum) Extended swimming season. Eco - heating solution Improved personal carbon footprint. Increased future saleability of property New System Installed. A 32kW Atmos gasification boiler (DC32GS ) was installed in a barn adjacent to the house, together with an AKVATerm 2000litre Standard EK + K accumulation tank. 120 SunnPro solar thermal tubes were also installed ( an additional 30 tubes were installed to compensate for shaded area in late afternoon)   swansolar.eu © Swan Solutions de Propriete 2011