Half bath off mudroom doubles as "lamb wamer"!
A month or so before lambing one of the ewes broke a hind leg. We found the ewe holding up her back leg and the part below the hind knee was wobbling free. We don't know how it got broken. We splinted the leg trying to align the two ends a close as possible to correct. She was splinted for over a month and by the time she lambed she was putting some weight on her leg. This ordeal plus carrying lambs caused her to loose weight. She delivered normal sized twins and we kept her in a pen longer than most so we could make sure she got extra feed. Yesterday was warm so we turned her and her lambs out. It was warm overnight but it rained a little. My wife found one of the twins wet, cold, and lethargic in the field. This lamb likely did not get enough mothers milk to stay warm (wondered off from mom, mom doesn't have enough milk, sibling is a milk hog, who know why...). My wife penned the ewe and her other twin. She brought the weak twin in the house, tube fed it warm milk replacer, put it in the half bath (6' x 6') on a towel, and turned on a space heater in the bath. The lamb is now sleeping while being "cooked".
Here is a commercially available lamb warming box