I've had my Grainfather for roughly 2 months and was just now able to get a Sparge Heater. Planning to do a brew in a few days so I did the final assembly and cleaning of the Grainfather today. With a Grain Coat, I had a starting water temp of 55 degrees F and a room temp of 70 degrees F. I started off with just over 5 gallon of water and it took 47 minutes to reach 150 degrees F. From there, it took 37 minutes to reach 212 degrees F.
I left the lid on during the whole heating process and had a more noticeable boil with the lid on than after I removed it. I never saw my display read EE and it hovered between 211 and 212. Boil looked good enough to me. I also didn't add the sparge water volume when I ramped up to boil. Even still, it will be less than an hour to mash temp and and less than an hour to boil temp.
I have 55 degree F well water and hooked the counter flow chiller up to drain after reaching the boil. I've put a water pressure regulator on the line I will be using for the counter flow chiller. I don't know what the pressure is set at but it's not enough to lift the hot water out line. Water was coming out of the wort cold line between 65-70 degrees with the pump ball valve at full open. I'm amazed at how quickly this thing chilled the water. I'll have to get a gauge to see what my water pressure is set at.
I left the lid on during the whole heating process and had a more noticeable boil with the lid on than after I removed it. I never saw my display read EE and it hovered between 211 and 212. Boil looked good enough to me. I also didn't add the sparge water volume when I ramped up to boil. Even still, it will be less than an hour to mash temp and and less than an hour to boil temp.
I have 55 degree F well water and hooked the counter flow chiller up to drain after reaching the boil. I've put a water pressure regulator on the line I will be using for the counter flow chiller. I don't know what the pressure is set at but it's not enough to lift the hot water out line. Water was coming out of the wort cold line between 65-70 degrees with the pump ball valve at full open. I'm amazed at how quickly this thing chilled the water. I'll have to get a gauge to see what my water pressure is set at.