GREEN BAY, WI (WTAQ) - An area animal shelter is looking for help after part of its heating system failed. The Bay Area Humane Society in Green Bay says one of its heat exchangers stopped working. The failure of the 20-year-old piece of equipment means the kennel area is without heat. It could take three to four weeks for a replacement to be found and installed. Staff members say the area typically houses 40-50 dogs at any one time, and they are concerned about extreme cold temperatures in the forecast. For more information on helping, call (920) 469-3110 ext. 115.