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And the winner of HVAC efficiency is...

by LiveModern Webmaster last modified Jan 04, 2012 02:31 AM
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by Myleen and Jan ( last modified Jan 31, 2008



...Us! We did a manual J calculation of our SIP (Structural Insulated Panel) home and found out that our house was very efficient at 941 sf per ton! The average HVAC contractor normally sizes HVAC units at 450-550 sf per ton.

What does the ton mean? Your HVAC (Heating Ventilation Air Conditioning) system is sized by the ton. Typical sizes for single family residences are between two and five tons. Each ton equals 12,000 Btuh. Basically, it means our house is so air tight, insulated and efficient, it would take a 3-ton HVAC unit to cool our SIP house compared to a 5-ton HVAC unit to cool a stick built house that is the same size as our SIP home.

Our future house, a 2419 sf home, is the most energy efficient home that our green architect has ever designed. :-) Sorry to toot our own horn, but it makes us a bit proud to know this.




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