In college our buddies & I would host large parties at our house. The amount of people in our small new home was rather astonishing, and people would be crammed into our locale love sardines, however having enough booze & food was always absolutely tough! One thing though, we always saved on Heating & A/C, then most of our parties were for the holiday season. The holiday season is the chilly season, so that means heating… We never ran our gas furnace during a large celebration. This saved us on a ton of energy for the day. The sheer amount of body heat worked better than our gas furnace could actually. The celebration goers were drinking & raising their temperature too. Then they were crammed narrow & dancing all over the locale. The heat in the new home was bad enough that everyone would open windows & the front door; I can’t even imagine how annoyed I would be if I had the gas furnace on at that point. It just makes sense not to use it, but also, I am on a narrow budget. Why should a bunch of celebration goers get free heating out of our roommates & I? If we were going to Springtime for quality heating for 1 day, it would be a day where just we all got to like it. We did a similar thing with A/C in the summer. We did not run the A/C system. The people just had to duck in the shade & use ice inside. We had to hide where the a/c system was kept though. People always would complain & try to get the cooling system on.