the input and output are controled from the top of the heater. it stores the heat at night(11pm until 7am) according to how you have te input set. i.e. 6 is high, 1 is low.
the output controls when most heat is needed. i.e. 6 morning,1 evening.
the second switch is a boost/fan/covector which is just a heater for anytime.
hope this might help a little.
Eanna
December 2007
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