Hi guys Very, very soon I'll be purchasing the Grainfather. Rather than invest the 80 odd quid for the GF sparger I thought it might be more prudent to invest the same in something that could be multi purpose. If I bought a standard 20L gas boiler with tap and thermometer would it do the same job? I ask because then if I ever have a problem with my GF at least I could do a few BIAB brew using the boiler. As for heating it up I guess either I could use the grainfather to boil the water first. But maybe during the brewing process it would cool down too much? I could always boil small amounts of water while the grainfather is mashing. Anyway, any advice would be welcome!