The difference between a smart thermostat that saves 5% and one that saves 20% is almost entirely in the schedule setup. The strategies below are grounded in real usage data.

The Setback Strategy That Saves Most

Core principle: Every degree you drop the thermostat during an unoccupied or sleeping period saves 1–3% on your heating bill. Savings scale with climate: bigger setbacks in colder climates save more.

The standard recommendation:
– Sleep setback: 2–4°C below comfort temperature (e.g., from 21°C to 17–19°C)
– Away setback: 5–8°C below comfort temperature (e.g., from 21°C to 13–16°C)
– Recovery time: allow 30–60 minutes before your next occupied period

For gas furnace homes: Setbacks in both directions (sleep, away) deliver savings without meaningful efficiency penalty. A gas furnace can recover from a 5°C setback in 20–30 minutes.

For heat pump homes: Deep setbacks (more than 3°C) in very cold weather can trigger expensive auxiliary heat during recovery. Limit setbacks to 2–3°C on nights below -15°C, or use eco+ to manage this automatically.

For electric baseboard homes: Per-room setbacks are where the money is. Lower each room on its own schedule: bedrooms overnight, and any room empty during work hours.

Schedules by Lifestyle

Work-from-home (WFH) household:
The away period doesn’t exist during workdays. Main savings come from:
– Overnight sleep setback (still saves 20–30% of heating energy)
– Lowering unoccupied rooms (home office at 21°C; spare bedrooms at 15°C)
– Weekend away periods for errands and activities

Away all day (9–5 schedule):
This is where the highest savings come from. Your thermostat should:
– Drop to setback temperature when you leave (~7:30–8:00am)
– Begin recovery 30–60 minutes before return (~5:00–5:30pm)
– Drop again for sleep period (~10:00–10:30pm)
– Recover before morning (~6:00–6:30am)

Irregular schedule:
Manual schedules work poorly here. Use geofencing instead: the thermostat follows your location rather than a fixed schedule. ecobee’s Home/Away and Mysa’s geofencing are reliable for this.

Geofencing vs Schedule: When to Use Each

Use schedule if:
– Your routine is consistent (work same hours most days)
– Multiple people in household with phone signal conflicts

Use geofencing if:
– Variable or unpredictable schedule
– Only 1–2 phones to track
– You frequently forget to manually adjust when leaving

Use both together:
Many ecobee users run a base schedule for typical days and let geofencing override it when the schedule doesn’t apply. This handles both the 5-day-a-week commuter and the occasional WFH or weekend stay.

Smart Recovery: Adaptive Scheduling

ecobee’s Smart Recovery feature pre-heats or pre-cools your home to reach the target temperature at exactly the scheduled time, rather than starting at that time. In cold weather, this means the thermostat may start running 60–90 minutes early to reach 21°C by 7:00am rather than running hard at 7:00am.

Efficiency benefit: Smoother pre-warming avoids the peak demand spike of trying to raise temperature quickly, which can engage auxiliary heat (heat pump homes) or force the furnace to run at full capacity.

Turn on Smart Recovery or equivalent in your thermostat’s settings. Many systems ship with it off by default.

Heating-Type-Specific Tips

Gas furnace:
– Setbacks of 4–6°C overnight are safe and effective
– Recovery time: 20–45 minutes depending on home size and outdoor temperature
– Aggressive weekend setbacks when away (vacation mode)

Heat pump:
– Limit overnight setbacks to 2–3°C in sustained cold to avoid auxiliary heat during recovery
– Let eco+ or equivalent handle setback depth without manual input; it factors in outdoor temperature
– Pre-cool / pre-heat longer than a furnace would need (heat pumps work more slowly at capacity limits)
– See Best Smart Thermostats for Cold Climates for winter heat pump strategy

Electric baseboard:
– Setback individual rooms, not just the “main” thermostat
– Bedrooms: lower at 10pm, recover at 6:30am
– Spare rooms: hold at 15°C all day unless guests expected
– Living room: active during evening hours; lower after 10pm
– Bathrooms: keep at minimum, since they heat quickly when needed

The Eco Modes to Actually Enable

Humidity-based setpoint adjustment: ecobee’s eco+ can raise cooling setpoints in high humidity. You feel cooler at 77°F when humidity is low than at 74°F when it’s high. Enable this for summer savings.

Demand response pre-conditioning: When enrolled in a demand-response program, ecobee pre-cools before an event to coast through the event period without running. Enable this: it delivers the full comfort of normal operation through demand events.

Frequently Asked Questions

What is the best temperature setback to save money?
5–8°C during away periods delivers most of the savings for gas furnace homes. At that range, you’re saving 15–25% on away-period energy use. Overnight setbacks of 3–4°C add another 8–12% on sleep-period energy.

Does geofencing save more money than a schedule?
For irregular schedules, geofencing captures more savings because it responds to your location rather than a fixed program. For consistent schedules, the two are comparable.

How long before I get home should the thermostat start heating?
Gas furnace homes need 30–60 minutes. Heat pumps may need 60–90 minutes in cold weather. Smart thermostats like ecobee’s Smart Recovery learn your home’s heating rate and adjust without input from you.

Can I use geofencing with multiple household members?
Yes, most thermostat apps track multiple people. The thermostat switches to “home” mode when any registered phone is nearby, and to “away” only when all phones are absent. Set this up for each adult in the household.

How often should I adjust my schedule?
Review seasonally: your optimal schedule in January is different from October. Most smart thermostats allow seasonal schedule templates. At minimum, verify your schedule’s wake and sleep times match your actual routine.