From the time of emergence, the hotel/castle built completely of ice in Sweden every year has become a fad in northern states. As an HVAC technician near one such ice hotels it has fallen in my experience the last several years to attempt to heat the rooms while possibly not compromising the ice. People are drawn to the exotic nature associated with the building made of ice but as it turns out they are not big on freezing while they stay there. Obviously you can’t have anything that’s going to produce too much heat melt. It was eventually not an easy task to heat a place without heating it. The first years we just used electric blankets relating to the bed but this only helped while these folks were sleeping. This year I put together a genius solution. The first part involved developing a skeleton of the building by using pipework. I was going to make use of the hydronic method, using refrigerant lines to cool the pool running through the pipes. The water would be pumped through the pipes continuously so that it will provide structural integrity to the icework and keep it refrigerated. So this solves the problem of keeping the structure awesome and most importantly stable. To warm the room I decided that the easiest way would by use use of a line infrared space heater. These heaters may be connected to thermostats restricted to safe temperatures within the rooms. I also designed some arctic release vents incase the the temperatures of the rooms exceeded the prescribed temps. All of this design and HVAC framework was very trial and error in these circumstances. It developed into a fantastic success and i made a name for myself in the process. Now ice castles all within the U. S. are using my own framework. I never thought I might acquire acclaim as an HVAC computer technician.