Fellow Brewers... particularly those using the Grainfather All-In-One System. I've been home brewing since the late 90s. As I get older, I find the tediousness of brew day is becoming more and more painful. I have brewed with the Speidel Braumeister and have had great results. However, it's very price restrictive. The best alternative for me, appears to be the Grainfather. I've done a great deal of research, and think this is my answer to a much less complicated brew day. However, of all the pros & cons, one that I find most troubling, is that the US version is painfully under-powered. Mash temperatures don't seem to be a problem. But getting to, and maintaining a robust boil seems to be an issue. I've heard that at best, it's gets hot, and will get to a boil, but not the rolling boil necessary for brewing. I've heard you can buy and/or make an insulated jacket, that helps the pot retain much of its heat. But other than that, no real solutions. Does anyone else using the US version have this problem? Is this a model/year problem that no longer exists? What have you done to overcome? I'd be grateful for any/all insight. Want to know before I make the investment. Thanx!