Hi Mike, Just back in from field and saw your reply to Dave. I do same. I use warm wet towels, same as when I used a portable incubator I would plug into a power inverter, as I couldn't use warm water as it would slosh out. Regards, Dee A. Lusby Small Cell Commercial Beekeeper Moyza, Arizona http://groups.yahoo.com/groups/organicbeekeepers/ __________________________________________ Yahoo! DSL – Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---