Short story: I need a recommendation for a cheap (to buy and run), safe space heater-type-device to leave on, unattended in my garage to provide warmth for a stray cat who's now in my care. Also, a recommendation for an insulated dish to keep water liquid, down to maybe 15 degrees ambient, if possible.
Surprisingly long story: Oddly enough, right after we gave back my parents' cat after a long term loan (not of our volition, another long story) a stray cat adopted us. Me being the softy (sucker) I am, I gave it a couple food scraps, thereby cementing the fact that we are now her caretakers. So, I've been putting out food and water, and all has been well, until recently, when it has finally got cold around here.
I have a shed, where I've set up a little improvised lean-to out of a camp table with a giant drop cloth around it for some measure of insulation and protection from the wind. I made a little bed by stuffing some conifer needles from the yard into a garbage bag with a old sheet on top, hopefully providing some insulation from the cold floor. She can come and go as she pleases, and she's definitely hanging out in there.
Now in larger terms, I'm worried about a few things. I'd like to get her spayed foremost, because I certainly don't want a litter of stray kittens come spring. (And there is a tomcat roaming around here.) I'd like to get her shots, too, because I also don't want a dead cat in my shed. So, I'm looking into sources for those things. Suggestions appreciated for cheap/free feline healthcare.
More immediately: I'm most interested in keeping her warm. It was 11 degrees here last night, and she's still alive, but I think we have a cold winter in our future. (She's not coming in the house.) She's been in the shed, which has no power, but I'm not opposed to cutting a cat door in the garage. I'd still need heat. The heater would need to be (a) cheap to buy and run, (b) safe to leave unattended in my garage overnight. I just need something to heat a relatively small area, and only to bump the temp up to something a little more liveable than 11 degrees. Maybe 45 or so.
Another suggestion needed, probably from somebody with barn cats or outdoor dogs: I'd like to find an insulated water dish to use outside. I have been using a fairly large container, and dissolving some sugar in the water to lower its freeze point, but that only helps so much when it's 10 degrees. Suggestions?
Any other tips for keeping outdoor animals healthy will be appreciated. She seems to be over a year old, so I'm guessing she's gone through a winter outside before, unless she just got tossed out, so hopefully she's figured out some tricks of her own by now. But, if for no other reason than my own peace of mind, I'd like to do what I can (she's not coming inside) to help her out. Suggestions welcome.
That's a lot of typing about a stray cat...