Hm. You'd think the sand would leach heat from the cat, rather than insulate it.
Sheets of dense plastic work OK for under trays? It's either that or sheet metal from an old water heater, for me, since I'm not really into buying new stuff for eco-modding when there is so much usable stuff around me.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
|