41. November natural gas surged 4.3 cents to $ 1.845 for each million British thermal units . 42. Both grills run on 10, 000 British thermal units . 43. January natural gas climbed 5.1 cents to $ 2.069 for each million British thermal units . 44. December natural gas was up 26 cents to $ 7.436 per million British thermal units . 45. November natural gas rose 1.6 cents to $ 1.825 for each million British thermal units . 46. It is equal to 10 therms or 1, 000, 000 British thermal units ( MMBtu ). 47. She said in December 1999, gas cost $ 2 . 36 per million British thermal units . 48. December natural gas fell 6 cents to $ 7 . 176 per million British thermal units . 49. Many analysts also see natural gas prices staying below $ 2 per million British thermal units . 50. How many British Thermal Units of naphtha can fit into one cubic foot or cubic meter?