Was 85 here this weekend now 40 and raining,lol.What you need is a high seer mini split heat pump rated for low temp(or high),punch in the temp you want and it will heat or cool.Im in a weird place also,can be 100 and then drop into 20s overnight or 30s for months or 100+ for months,what can you do?
Damn you pay alot for co2,i get 20s for ten bucks and fiftys for 20 bucks,you need to go to the source,not the hydro shop.