That depends. The temperature within an occupied (properly built(www.igloobuildingcode.com)) Igloo is always 32F. If it was any warmer the Igloo would melt, if it were any cooler the heat from the occupent would bring the temperature up to the maximunm (snow is the perfect insulator). If the occupent were to require temperatures cooler than 32F, then refrigeration equipment would be required
