Just lit the flame to heat up the strike water. This was an inspired recipe. Had a Ballast Point Grapefruit IPA the other night and my girlfriend and I liked it so much I moved this to the front of the brew line. With summer fast approaching (at least, it is here in SoCal, it's gonna be in the 90s by next weekend) this will make a great thirst quenching, post yard work, sitting in the sun in my boardshorts and flip flops, beer.
Having a Grapefruit IPA for good luck!