wallas Spartan, Installation, Operation And Service Instructions

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Heater system dimensioning
Matrix heater and/or radiator size calculations
The following input data are needed for dimensioning the appropriate matrix heater
dimensions of the space to be heated (m or ft)
intended use (type) of the space (salon, sleeping etc.)
Calculation A (resulting W) Formula: L x W x H x 0,8 x Factor A = ______ W
L
W
H
0,8
Length of the space (m)
Width of the space (m)
Height of the space (m)
Adjustment factor
Factor A selection table
80
100
120
150
Small spaces like heads or working rooms
Sleeping spaces
All other spaces
High use spaces like salon
Example: A space 4 m long, 3 m wide and 2 m high that is a salon (high use) would require 4 x 3 x 2 x 0,8 x 150 =
2 880 W matrix heater or radiator
Calculation B (resulting BTU) Formula: L x W x H x 0,8 x Factor B = ______ BTU/h
L
W
H
0,8
Length of the space (ft)
Width of the space (ft)
Height of the space (ft)
Adjustment factor
Factor B selection table
8
10
12
15
Small spaces like heads or working rooms
Sleeping spaces
All other spaces
High use spaces like salon
Example: A space 10 feet long, 12 feet wide and 6,5 feet high that is a salon (high use) would require 10 x 12 x 6,5
x 0,8 x 15 = 9 360 BTU/h matrix heater or radiator
Example matrix (m³ / Factor A / W) Example matrix (ft³ / Factor B / BTU/h)
For more detailed calculation please visit Wallas web-site:wallas.fi/