Mike , FWIW, the TC-3 version of that Thermo-Cube does just that, on at 34*F, off at 45*.
If you know any folks with horses, mebbe try jarring loose a little "Joint Juice" for that old rascal's stiff legs.
GTC
Member, Clan of the Border Rats -- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain