Quote Originally Posted by bcr229 View Post
Ok if you're renting there's not a lot you can or want to do structurally for upgrades, like installing more efficient windows or adding a ton of insulation. Save those efforts for your own place.

Last year I picked up a few rolls of this and some clear packing tape, cut out pieces large enough to fit over my windows and the outer framing, and taped them up. Cost less than $10 total and there was a very noticeable reduction in cold drafts, but because it's clear plastic it still lets in plenty of light. Make sure you get the 2-MIL not the 0.5-MIL if you do it, the 0.5-MIL tears easily.
https://www.lowes.com/pd/Plastic-9-f...-Cloth/3553998

Now the living room - are there actual entrances leading to the room, or is it simply a designated area that is otherwise open to the rest of the house?

Keroscene for emergency heat is good, just remember you'll want several storage containers for it since in an emergency it may not be resupplied quickly. Have a spare siphon too, those are cheap and if one will fail it will usually be at the worst possible time.
The living room is connected to the kitchen and dinning room with Rainbows enclosure being a huge divider. Her enclosure acts like a 4 ft wall.

I will pick up some of the drop cloth you suggested. Will also be boxing off the window units with foam board to insulate them till next spring.