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It looks like any other house but what‘s inside that counts (Con‘t from RE 3) and the increased value of your home. The payback period in energy savings alone is probably between five to seven years, depending on the price of energy in your area and your own personâ€" al lifestyle. In Ontario, often the price difference between an Râ€" 2000 home and a conventional home is the cost of the heat recovâ€" ery ventilation system, or about $3,000. Homeowner: Does an Râ€"2000 home look any different than a conventional house? Râ€"2000: From the outside an Râ€"2000 home looks like any other house on the block. It‘s what‘s inside that counts. Râ€"2000 homes are qualityâ€" built with higher levels of insulaâ€" tion, a continuous airâ€"vapour barriâ€" er and a mechanical ventilation system that keeps fresh air flowing through the house. Homeowner: Can you open the windows in an Râ€"2000 home? Râ€"2000: Windows in Râ€"2000 homes can certainly be opened, but the beauty of the Râ€"2000 home is that you don‘t need to open them for air circulation. The mechanical ventiâ€" lation system efficiently supplies continuous fresh air both in winter and summer.