I am going to kill SS(12)- I was just put on restricted activity since my oxygen levels and heart hate are going haywire with activity and on doctors orders to always be in A/C. Yay... so we had to buy a 14000 BTU unit for the living space in our house (several hundred dollars but a deductible medical expense, we are well on our way to hitting 10%) and it is helping. SS comes over sees the A/C is on and says it is only 79F so why is it on, that's a lot of electricity especially since the oxygen machine has to be on all the time.