In order to save money, I have moved my puter and most into my nicely heated 12×15 ft room. I spend 75% of my time in this room. I intend to leave the house furnace off and use only a portable effeicient space heater, is there anything I should worry about in not heating the rest of the house except in the evening when I am out there watching TV ? NO, the pipes won’t freeze I live in Or and it does get below freezing but rarely below about 26F
