Should I Turn The Heat Off When I Leave?

When It Makes Sense

• Good fit: You live in a well‑insulated house in a mild climate and plan to be away for several days. Leaving the thermostat on a low setting (or off) can reduce heating bills without risking frozen pipes.
• Good fit: Your home is equipped with a programmable or smart thermostat that can safely lower the temperature and raise it again before you return, ensuring comfort while still saving energy.

When You Should Avoid It

• Warning sign: You reside in an area prone to sub‑freezing temperatures and have water pipes that run through unheated spaces. Turning the heat off could lead to burst pipes and costly repairs.
• Warning sign: You have infants, elderly relatives, or pets staying in the house while you’re gone. Maintaining a stable, safe temperature is critical for health and wellbeing.

Pros and Cons

Pros

• Energy savings: Reducing heating when the home is empty can lower utility bills, especially during long trips.
• Environmental impact: Using less fuel or electricity reduces greenhouse‑gas emissions and supports sustainability goals.

Cons

• Risk of freezing pipes: In cold climates, a completely off thermostat may let indoor temperatures drop enough to freeze water lines.
• Comfort delay: After returning, the home may be cold, requiring time for the heating system to bring the temperature back up, which can be inconvenient.

Decision Checklist

• Is the outdoor temperature expected to stay above freezing for the entire period you’ll be away?
• Does your home have adequate insulation and a modern heating system that can safely operate at a reduced set‑point?
• Are there vulnerable occupants or valuable items that could be harmed by a sudden temperature drop?

Alternatives to Consider

Instead of turning the heat completely off, you might lower the thermostat to a “vacation” setting (typically 55‑60°F or 13‑16°C). Smart thermostats can automatically adjust the temperature based on weather forecasts or occupancy sensors. Another option is to use space‑heater timers in occupied rooms while keeping the central system at a low, safe baseline.

Final Recommendation

If your home is well insulated, you have a reliable thermostat, and the forecast stays above freezing, lowering or turning off the heat can be a sensible way to save energy. However, in colder regions, with older plumbing, or when vulnerable people or pets are present, keep the heating on a safe minimum to avoid damage and health risks. When in doubt, consult a heating professional or plumber to assess your specific situation.