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Smart Thermostat Comparison: Nest vs Ecobee vs Honeywell vs Mysa

Which smart thermostat qualifies for BC Hydro's $150 rebate? Heat pump compatibility, Peak Saver integration, and the thermostat that wins for BC.

Published July 2026 · 8 min read · For heat pump + solar buyers

Why your thermostat choice matters

If you're installing a heat pump or already have one, your thermostat is doing more than controlling temperature. It's optimizing Peak Saver enrollment (worth $3K+ over 10 years), managing battery charging, and scheduling around time-of-use rates.

A bad thermostat pick could cost you thousands. A great one earns it back in 2–3 years through Peak Saver rewards alone.

Full comparison: 4 top models

Feature Google Nest 4 Ecobee Premium Honeywell T9 Mysa Central
BC Hydro Rebate ✓ $150 ✓ $150 ✓ $150 ✓ $150
Price (CAD) $299 $329 $249 $199
After Rebate $149 $179 $99 $49
Peak Saver Native Yes (native) Yes (native) No (integration available) Yes (Canadian)
Heat Pump Support Excellent Excellent Good (C-wire req.) Excellent
Remote Sensors Yes (4 included) Yes (Voice Remote) Yes (Smart Room) No (single location)
Learning Capability AI-driven AI-driven Rule-based Simple scheduling
Solar/Battery Integration Fair (Google Home) Fair (SmartThings) Limited Strong (Sunrun, Enphase)
Matter Support Yes Yes Yes In progress
C-Wire Required No (battery backup) No (battery backup) No (some models) No (wireless)
Warranty 2 years 5 years 2 years 3 years

Our top recommendations

🏆 Best Overall: Google Nest 4 $149 after rebate

Why: Native Peak Saver, AI learning, room sensors included, and tight integration with Google Home. If you have other Google Home devices, this is the easy choice.

Tradeoff: Expensive upfront ($299), but features justify it. Google's privacy model may concern some users. Data goes to Google servers.

Best for: Heat pump + solar buyers who want the most features and don't mind Google ecosystem.

🥈 Best Feature-for-Price: Ecobee Premium $179 after rebate

Why: Native Peak Saver, excellent heat pump support, voice remote (instead of room sensors), and 5-year warranty. Slightly cheaper than Nest with same capabilities.

Tradeoff: No physical room sensors (voice remote is different UX). Integration with solar/battery is fair compared to Mysa.

Best for: Budget-conscious heat pump buyers who want good Peak Saver performance and reliability (5-year warranty).

🇨🇦 Best for Canadian Homes: Mysa Central $49 after rebate

Why: Canadian company, excellent heat pump design, built-in Peak Saver integration, and deep solar/battery ecosystem partnerships (Sunrun, Enphase). Cheapest after rebate but still capable.

Tradeoff: No room sensors, simpler learning (rule-based vs AI). Better for single-zone homes or tech-forward users who don't need fancy scheduling.

Best for: BC homeowners installing Eguana or other batteries; tech-savvy users; anyone who wants a Canadian solution.

💰 Budget Pick: Honeywell T9 $99 after rebate

Why: Cheapest after rebate ($99), room sensors, and adequate heat pump support. Good middle ground if budget is tight.

Tradeoff: No native Peak Saver (requires integration). Rule-based learning, not AI. Lowest warranty (2 years). Limited battery/solar integration.

Best for: Heat pump-only buyers (no solar/battery) on a tight budget who want room-level temperature control.

Peak Saver enrollment bonus: All four thermostats support Peak Saver, but Nest, Ecobee, and Mysa have it built-in. That native support earns you bonuses ($100–500 at signup, then $50–250/year in seasonal rewards). With Honeywell, you'll need third-party middleware—which works but adds friction.

Peak Saver is the deciding factor

Here's the math: Peak Saver optimizes when your battery charges and discharges to match BC Hydro's peak hours. It costs you nothing to enroll, but it pays $3K+ over 10 years if your thermostat and battery talk to each other seamlessly.

Native Peak Saver (Nest, Ecobee, Mysa): Automatic enrollment incentives, seasonal rewards, no setup friction.

Third-party Peak Saver (Honeywell): Works, but requires manual integration and you lose out on automation.

If Peak Saver is part of your strategy (and it should be), eliminate Honeywell from your list.

For solar + battery: Mysa or Nest

If you're installing solar AND battery, thermostat integration is critical. Mysa has the strongest ecosystem partnerships (Enphase, Sunrun). Nest has the most features (room sensors, AI learning).

Either choice will optimize battery charging around Peak Saver, time-of-use rates, and solar production. Mysa is more straightforward; Nest offers more control.

The bottom line

Pro tip: All four qualify for the $150 BC Hydro rebate. The real savings come from Peak Saver integration—pick a thermostat with native support so you don't miss enrollment bonuses and seasonal rewards.

Related comparisons & guides

Battery Comparison: Tesla vs Eguana

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Heat Pump Brands: Mitsubishi vs Daikin vs Bosch

Your thermostat works best with the right heat pump brand.

Smart Thermostat + Peak Saver Optimization

Maximize seasonal rewards with the right thermostat and battery pair.

How Heat Pumps Work: Cold Climate Proof

Why thermostats are critical to heat pump efficiency in BC winters.

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