Winterize Your Home: Inside and Out — 2026 Complete Guide
Part 12 of 22 in Winterize Your Home: Inside and Out. By Damon Fowler, Trends Kitchen & Bathroom Specialists.
There is no single winter thermostat number that suits every household and protects every pipe. Comfort needs, heating equipment, insulation, room layout, and vulnerable spaces all matter. Use a starting point, observe the house, and adjust with the system in mind.
Choose a workable occupied temperature
The Department of Energy’s consumer guidance suggests starting around 68–70°F and adjusting as needed. That is a comfort and efficiency starting point, not a requirement or a promise of a particular bill. Household members with greater sensitivity to cold may need a different setting.
Compare room temperatures during normal use rather than relying on one hallway display. An inexpensive thermometer can help establish whether the uncomfortable room is actually colder or feels cold because of nearby surfaces or moving air.
Situation: you keep raising the thermostat for one bedroom
The living room overheats while a bedroom above the garage remains uncomfortable. Raising the setpoint affects the entire system but may not correct that room’s enclosure or air distribution.
Document the temperature difference, check for blocked registers, and arrange an evaluation of the room and system. The problem may require air sealing, insulation, duct repair, balancing, or another change. A smart thermostat with a remote sensor can alter control behavior, but it cannot repair a deficient floor cavity.
Understand setbacks before programming them
Lowering the temperature during sleep or absence can reduce heat demand in suitable circumstances. However, large setbacks are not appropriate for every system or household. Recovery time, weather, plumbing exposure, and control strategy matter.
Heat pumps may use supplemental heat during recovery, depending on the equipment and controls. Ask your installer whether a modest schedule, steady setting, or a compatible adaptive control is the best approach. Do not assume a schedule written for a gas furnace is ideal for your heat pump.
Likewise, do not use an emergency-heat setting as a general response to colder weather without understanding its purpose. Follow the equipment guidance and have unusual operation assessed.
Why 55°F is not a pipe-protection guarantee
The commonly cited minimum for an unattended heated house cannot describe every hidden space. A pipe in an exterior wall or unheated addition may be much colder than the room containing the thermostat. Longer cold spells, wind, and a power failure can change the risk.
Before traveling, have vulnerable routes evaluated and make an inspection plan. Consider your insurer’s requirements and any water-dependent equipment. A thermostat setting is one part of that plan, not the entire plan.
Make smart controls understandable
Check schedules, time settings, batteries where applicable, and behavior after a power interruption. Know how to cancel a temporary hold and how household members can change the temperature without an app. Keep access credentials and setup information under homeowner control.
If adding a connected thermostat, verify compatibility with the heating system and wiring. Correct installation and commissioning matter more than the display. The best control supports the equipment and the people living with it.