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BUSH NELSON
Halogen Heaters

SELECTION
Selection of the appropriate loading for Halogen Heater installations depends on a number of
factors, namely design temperatures, air movement, clothing and activity of the occupants and
the direction of the beam. These factors are taken into account by applying the values given in Tables 1 and 2.

  1. Calculate area to be heated. (A sq. m.).
  2. Ascertain Power Loading for Type of installation. (P W/sq.m.).
  3. Select (from Table 2) the appropriate mounting height to reach halfway across the area. Space out the units on both sides of the area to be heated, ideally the distance between units should coincide with the total width of the beam.
  4. The number of units (N) is then given by :-
    N =
    AxP
    		  
    W
    		  
    Where W is 1000 for Model 1501
      1500 for Model 1500
      2000 for Model 1502 (1502/1)
      3000 for Model 1503
      4500 for Model 1545
      6000 for Model 1560
Example
A warehouse is to be heated with Halogen Heaters.
Dimenions are 15m x 6m x 4m to the eaves.
  1. Area to be heated A = 15 x 6 = 90 sq.m.
  2. From Table 1, Power loading P = 135 W/sq.m.
  3. Units to be mounted on longest walls. Half way across area is 3m. Thus from Table 2 suitable mounting height is 2.5m. Total width at 2.5m height is 7.3m thus for best heat distribution units should not be more than 7.3m apart.
  4. Number of units = AxP = 90x135 = 8 units.
    W 1500

Taking into account windows, doors etc. mount 8 x 1500 units at 2.5m high, 4 units evenly spaced down each side of the building. ie. 3.75m between heaters and 1.875m from the end walls.

An alternative with fewer units but less even heat distribution would be 4 x 1503
units at 3.0m high, 2 per side with 5m between heaters and 2.5m from the end
walls.

TABLE 1
Type of Installation Power Loading (W/Sq.m.)
Loading Bay 200
Workshop/Garage 135
Warehouse 135
Shops/Exhibition Hall 270
Sports Hall 100
Community/Meeting Hall 270
School Hall 270
Activity/Youth Hall 200
Church/Chapel 270


TABLE 2 Area and Wattage Density when the heater is wall mounted and angled at 45O
Mounting
Height (m)		 Average Power (W/m3) Distance
from Wall (m)		 Total
Width (m)		 Heated
Area (m2)
1501 1500 1502 1502/1 1503 1545 1560
2.5 37 55 74 74 n/a n/a n/a 3.7 7.3 27
3.0 23 35 46 46 70 n/a n/a 4.7 9.2 43
3.5 16 24 32 32 48 72 96 5.7 11.2 63
4.0 12 17 23 23 34 51 68 6.7 13.1 87
4.5 6 13 18 18 26 39 52 7.7 15.0 115
5.0 7 10 14 14 20 30 40 8.6 16.9 146

SPECIFICATION

List No. Lamp Heater Rating Dimenssions (mm) Fix Centres Min Rec Weight
Watt Volt L D H X Y Height (mm) Kgs
1501 Ruby 1000 230 434 140 310 50 - 2.5** 3
1501/3 Gold 1000 230 434 140 310 50 - 2.5** 3
1500/1 Ruby 1500 230 434 140 310 50 - 2.5** 3
1500/3 Gold 1500 230 434 140 310 50 - 2.5** 3
1502/1* Ruby 2000 110 434 140 310 50 - 2.5** 3.2
1502 Ruby 2000 230 434 140 310 50 - 2.5** 3.2
1502/3 Gold 2000 230 434 140 310 50 - 2.5** 3.2
1503 Ruby 3000 230 434 140 600 180 80 3.0 7
1503/3 Gold 3000 230 434 140 600 180 80 3.0 7
1545 Ruby 4500 230 434 140 855 180 80 3.5 10
1545/3 Gold 4500 230 434 140 855 180 80 3.5 10
1560 Ruby 6000 400*** 434 140 855 180 80 3.5 10
1560/3 Gold 6000 400*** 434 140 855 180 80 3.5 10

* Has integral switch for 1 or 2kW selection
** May also be fitted to 1500 PT portable stand
***1560:400v 3ph 4 wire
Note: 1545 has integral switch for centre tube to give 4500W or 3000W