dixson01974

How can I calculate the watts of the heat side of a peltier ?

flak-spammer

Try reading through the whole of http://www.melcor.com/pdf/Thermoelectric%20Handbook.pdf It should give you all the information you need.

zipdogso

You don't....You can but it a horrible formula.....Ferrotec have performance charts for their TEC's...take a look.
You will see that the heat from the hotside is about 2-2.5 times the cooling power at the operating point you are running them. 2 times is the best for a single TEC it is a good ballpark figure. Use 2.25-2.5 if you want to be really sure you can cool it.

Ultrasonic2 (muffy)

You can use my TEC calculator . found at watercooling.co.nz

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