We live with 2 cats, and they are periodically spotted on them - they argue, fight, whistle. Here they quarreled over the days, and here the frosts began, in the apartment it was cold - 17 degrees, shrimp... We looked at our broken cats, removed a chair from the battery and built them under the battery a brush, covered with a pledge - beauty. They took these two whispering creatures, and put them next to each other, tapping their backs on the battery. Only they were going to whisper and whisper on each other, as they felt the warmth... All, the quarrels are forgotten, sleeping friendly now at the battery, warm up.
Good luck and cats!