Sure, the rest of your residence will freeze, however since you are not in those parts of the home when you are relaxing it absolutely doesn’t matter
If you are looking to lower your utility bills, I have the most enjoyable solution for you! Did you ever notice how while in the more nippy plus hot times of the year your energy use goes up? Well, that is because you are running your central HVAC equipment all the time… It seems no matter where you set the temperature control it still makes your utility bills high… Now there’s a way you can really control that better! And this is by going out plus getting both a portable section oil furnace plus a portable A/C! With a portable section oil furnace you can reduce the amount of time you have to have the central heating equipment working… You can for instance use the portable section oil furnace to keep your family room hot while you are trying to relax plus turn off the central heating. Sure, the rest of your residence will freeze, however since you are not in those parts of the home when you are relaxing it absolutely doesn’t matter. As long as you turn on the central heating plus let it run for about 10 to 15 mins before you venture out plus start your day you are basically good! This is what I do! Then in the warmer months with the portable air conditioning equipment I do another method. I will utilize the portable air conditioning equipment in the kitchen in the day hours if it is not fully hot out plus then at night turn on the central A/C equipment. This makes a fairly huge difference!