compost in tumbler didn't get hot
So, I filled my tumbler with 5 gallons of fresh rabbit manure, 10 gallons of horse manure and 10 gallons of chicken litter. My chicken litter is a probably more hardwood sawdust than manure. then filled the rest of my 50 gallon tumbler with wheat straw. I know I am probably shy on the straw. the mixture never got hot. it's been 2 weeks. any suggestions on what I should do? I have some room in there now for something more, or should I dump it and start a new batch? If I dump it can I add the same straw back in? Thanks.