Power Computing provided the information in this article and it was deemed accurate as of 14 November 1997. Apple Computer, Inc. is not responsible for its content. This article is being provided as is and will not be updated in the future.

I need to know how much heat in BTUs (British Thermal Units) this computer generates because we're going to keep it in an environment thatÕs temperature sensitive.

Some places like the government and universities have environmental requirements that have to be adjusted because of the heat output of electronics.

The answer is quite simple. According to Tech Info Library article 267 , multiply the wattage of the Power Supply by 3.42 and that generates the rate in BTUs per hour.

For example, the PowerTower Pro runs on a 300 watt power supply.

300 watts x 3.42 = 1026 BTU/hour

Computer/Body Style      Power Supply      BTUs/Hour
-------------------      ------------      ---------
Power DT/MT              200 Watts         684.0
PowerWave DT/MT          200 Watts         684.0
PowerCurve LP            145 Watts         495.9
PowerCenter LP           145 Watts         495.9
PowerCenter DT/MT        200 Watts         684.0
PowerTower               200 Watts         684.0
PowerTower Pro           300 Watts        1026.0
PowerBase LP             145 Watts         495.9
PowerBase MT             200 Watts         684.0
PowerCenter Pro LP       145 Watts         495.9
PowerCenter Pro MT       200 Watts         684.0

Monitor       Power Supply       BTUs/Hour
---------     ------------       ---------
Power 15"      90 Watts          307.8
Power 17"     120 Watts          410.4
Sony 15sf     110 Watts          376.2
Sony 17sf     130 Watts          444.6
Sony 20se     150 Watts          513.0
Sony 20sx     150 Watts          513.0
Sony 300sft   150 Watts          513.0

Machines Affected: All