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1. elkimmeg Banned

   joined: Nov 18, 2005

   5,827 posts

   Patriots are 3 times super

   http://www.aceee.org/consumerguide/topfurn.htm#oilfurn
   
   http://hes.lbl.gov/hes/region/ne.html
   
   Burham oil boiler that reaches 87%.. Rumor has it Burham has made an oil boiler obtaining 90% or higher. The design is similar
   To a wood stove,where the exhaust is diverted down and further burned in a secondary burn cycle. To me,it sounds like the ever burn technology
   
   http://www.burnham.com/Current_Articles.cfm

   elkimmeg, Jun 10, 2006

   #1

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2. begreen Super Moderator

   joined: Nov 18, 2005

   36,118 posts

   South Puget Sound, WA

   If one goes to a condensing oil boiler, efficiencies of up to 95% are possible. Here are listings of current energystar products:
   Boilers: http://www.energystar.gov/ia/products/prod_lists/boilers_prod_list.pdf
   Furnaces: http://www.energystar.gov/ia/products/prod_lists/furnaces_prod_list.pdf

   begreen, Jun 10, 2006

   #2

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