The Colorado R heaters have been perfect. Our electrician had no problem connecting them so installation was quick. The groups who meet in the room have been so grateful. The heaters are logical to turn on and adjust; the heat-up time is almost instant and the heat level is comfortable. It’s not a drying heat. They are absolutely silent – in addition to the discussion groups, we now hold meditation sessions in the room, something we couldn’t do with the portable fan heaters.