A backup on your heat source is essential to small pets during winter— consult the vet for the best choice. Battery-powered heating sources are helpful during power outages, while
water bottles are useful when pipes freeze. Air-activated warmers can be used, too— add fabric between your heat source and pet for protection. Hot water bottles/warmed potatoes are also helpful during vet appointments.
Prepare for snow storms— keep enough heating options and carriers. Accidents (failing heaters, perhaps) may occur when you're not home, so think in advance to keep your pet
safe. Also, check on your neighbour/friend/nearby boarding facilities to bring pets in case of emergencies. Prepare an alternative plan for monitoring their healthcare.
Be sure there's someone to check on your pet when you'll be gone for too long. Regardless of the type of pet (even those who eat only from time to time), asking a neighbour/friend to regularly monitor your pet is still essential.
Consult your vet Marion, IA area about the best ways to protect your pet from various health issues.