A simple switch design that requires neither plumbing nor special wiring. All stainless steel construction. Two individually controlled warmers one upper and one lower to maintain beverage temperature. SplashGard black plastic funnel deflects hot liquids away from the hand. Brews directly into included 12-cup glass decanters. Pourover brewer requires no plumbing, completely portable. Just pour cold water in top and coffee brews immediately. Brews up to 3.8 gallons per hour.