This is true, and we should be proud. But let's not be too proud -- after all, the colonies that became Canada also had slavery for more than two centuries, ending only 30 years before U.S. President Abraham Lincoln wrote the Emancipation Proclamation in 1863.
Carbon Black Research. Birla Carbon is the largest manufacturer and supplier of high quality Carbon Black additives globally and a flagship business of the US$40 billion Aditya Birla Group. Our current footprint extends across 12 countries with 17 manufacturing facilities with combined annual capacity of 2 million tones.
1 Efficiency: Furnace efficiency measures how much fuel a unit converts to heat, and how much is lost up the chimney. 2  The national minimum efficiency standard is 78%, while some new models are up to 98.2% efficient. 3  The latter cost more, but will cut fuel costs and are better for the planet. Efficiency: Furnace efficiency measures how much fuel a unit converts to heat, and how much is lost up the chimney. 2  The national minimum efficiency standard is 78%, while some new models are up to 98.2% efficient. 3  The latter cost more, but will cut fuel costs and are better for the planet.