29 Mar '16, 11am

The Carbon Footprint of Minisplits

The Carbon Footprint of Minisplits

To reach a reasonable first estimate for an apples-to-apples comparison, it’s important to factor in the heating equipment’s efficiency. Better class oil-burning appliances have an AFUE Annual Fuel Utilization Efficiency. Widely-used measure of the fuel efficiency of a heating system that accounts for start-up, cool-down, and other operating losses that occur during real-life operation. AFUE is always lower than combustion efficiency. Furnaces sold in the United States must have a minimum AFUE of 78%. High ratings indicate more efficient equipment. (efficiency rating) of about 87%, while better-than-average appliances the burn propane or natural gas burners are in the 95%+ range. So, after adjusting for appliance efficiency, the carbon emission numbers look like this:

Full article: http://www.greenbuildingadvisor.com/blogs/dept/guest-blog...

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