Regulations require that the minimum distance between an oil-fired furnace and an indoor oil storage tank must be: Power Engineering Chapter 91 Regulations require that the minimum distance between an oil-fired furnace and an indoor oil storage tank must be: a. 7 m b. 5.2 m c. 2.1 m d. 4.7 m e. 9.8 m Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+