we had central heating at our last house, and i used to keep it set on
23 degree C (73.4 F).  one of my ferret's got very lethargic one day, i
figured because the temp was too high.  i took him outside where it was
cooler, and he recovered.  we turned it down to around 20 C (68 F) and
he was fine from then on.
 
shona
[Posted in FML issue 4129]