If you have mains gas in the building a heating requirement for a building of 30kW is not a problem, but for an electric heater that would be 125A which can take a huge chunk of a commercial buildings electric energy supply incomer of 100A per phase. This is why many commercial buildings with limited electricity supplies use air heat pumps such as air conditioning heat pumps or gas. For spot heating large areas, direct electric heating such as fan heaters and oil filled radiators can be un-economical use of power but are useful for localized heating. Propane and gas style heaters are compact and have a large capacity heat output from its fuel source when compared to the foot print of a similar electric space heater.
How much heating power is require for an area is worked out by a simple calculation. A basic rule of thumb is a minimum of 33watts(W) per meters cubed (m3). So if an area is 10 Meters x 5 Meters x 3 Meters the total cubic metering of the room will be 150 meters cubed. Therefore 150 x 33 = 4950 Watts of heating required. If you need a figure in BTU, times the final kW heating figure by 3412.
Another Example: An area(A) of 250 m3 requires (A)250x33(W)= 8.25 Kw (x 3412= 28000 Btu)
We have a huge range of industrial space heaters for sale from 2kW to 100kW. Brands including Munters, Broughton and Kroll, renouned for their high quality and outstanding reliability. These include single and three phase units.
A home user generally does not have huge heating requirements and will usually only want a heater to plug into their local socket or gas heating for convenient hassle free heat. Electric heaters are the main choice for spot heating a room and most popular are oil filled radiators, fan heaters, ceramic heaters, and halogen heaters. Smaller ceramic heaters are robust and compact, and have become a very efficient way of heating but lack large outputs of a fan heater or oil filled radiator. A halogen heater is effective, fast to heat and also has the by-product of giving off light which may be useful to some users. The most popular is the oil filled radiator and probably the most comfortable to live with as the heat is radiant so does not tend to dry the air. Convection heaters are compact and generally wall mounted for a compact and reliable form of heating.
The Big Red Rad - 3kw Industrial Radiant Heater
Blue Giant Series FF13T Industrial Ducted Heater 13.9Kw / 42000Btu
Kroll E8 8kw 400v 3phase electric heater with thermostat
9KW Industrial Space Heater
Kroll E12 12kw 400v 3phase Electric Heater With Thermostat
Red Giant FF20T Industrial Heater 20Kw / 66000Btu
Kroll E18 18kw 400v 3phase Electric Heater With Thermostat
Master B18 EPR 400V 18kw Electric Heater
Kroll E18S 18kw 400v 3phase Electric Heater With Thermostat (Ducted Version)
Blue Giant Series FF29T Industrial Ducted Heater 29Kw / 96000Btu
Super Giant Series FF42 Ducted Industrial Heater 43kW / 140000 Btu
Super Giant Series FF80
Super Giant Series FF125 Ducted Industrial Heater High Capacity 100Kw / 330000 Btu