Matched context for furnace and premix

The page lists matched contexts for furnace and premix.

Share - furnace	Share - premix	Phrase
1.52%	45.58%	{furnace or premix} combustion
1.14%	31.01%	{furnace or premix} burner
2.08%	6.19%	{furnace or premix} chamber
0.59%	6.75%	{furnace or premix} fuel
1.95%	1.19%	{furnace or premix} system
0.11%	2.23%	high [size] {furnace or premix}