The furnace output is 25kW/h and is powered by three Kanthal Super 1700 heating elements (Sandvik, SWE).
Consumption depends on the how the furnace is used and the type of glass that is melted.
Average during the working day 0,25-0,40 MW/day
Average during non-use, e.g. weekend 0,10 MW/day
Example of power consumption:
Assuming use of Glasma 705, with a melting temperature 1275 Celsius and working temperature 1120 Celsius.
Melting: approx. 9h
100% power 25kW/h approx. 5h – heating (125kW)
30-50% power 7,5-14,5 kW/h 4h – to hold melting temperature (40kW)
Ramp down to working temperature 0-5kW/h output approx. 2-4h (1,5kW)
Working day (varies depending on the type of work)
30-80% power 7.5-20kW/h approx. 8h (72kW)
When the furnace is idling and doors closed: 2-4kW/h approx.
With these estimates the consumption is an average of approximately (250 kW) 0.25 MW / day, but in reality it may be less as these figures err on the side of a higher level of consumption.
The furnace can be controlled classically via a standard Omron type controller. However it also has the capacity to be operated via a PC and take advantage of all the benefits of a software controlled furnace.
The robust frame of the furnace is made of steel. The body of the furnace is made from a special refractory concrete developed especially for electric furnaces. The thermal resistance of the material is 1700 Celsius and also increased chemical resistance.
NG photon is designed for a freestanding pot, with easy exchange system. Silica or clay pots are compatible.
It has increased insulation versus a gas furnace. There is no chimney and the furnace does not blow hot air and flue gases out of the furnace. The temperature of the surface of the furnace is around 60 Celsius. The furnace runs very quietly. All of which improve the working conditions in the hotshop.
It is worth noting that electric furnaces are heavier that gas, if weight is a concern for your building.