No C Wire Options
Compare no-C-wire smart thermostats by power method: included adapters and extenders, battery power, and the line-voltage systems to rule out.
| This model | Recommendations | |||||
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Smart Thermostat White Programmable
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Smart Wi-Fi Programmable Thermostat 3.5-inch color touch screen
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MRCOOL COMFORT MADE SIMPLE MST04 Compatible with Alexa and Google Assistant
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BOSCH BCC110 White Wi-Fi and app enabled
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Honeywell Home RCHT8612WF Black 7-day flexible programming
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Smart Thermostat with C-Wire Adapter White WiFi programmable thermostat
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| Brand | GE | Energizer | MRCOOL COMFORT MADE SIMPLE | BOSCH | Honeywell Home | EdgeAnt |
| Model | MST04 | BCC110 | RCHT8612WF | |||
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| Price | €107.18 | €89.31 | €116.12 | €168.82 | €136.65 | €106.29 |
| Seller | Newegg | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Oct 12, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 | May 29, 2026 |
| Compatibility | Most homes in North America | Heat pump (4 Heat, 2 Cool), Conventional (2 Heat, 2 Cool), 1-wire internally powered humidifier or dehumidifier, Most 24 VAC HVAC equipment, Dual Fuel systems (gas and electric) | Most residential heating and cooling systems | |||
| Connectivity | Wi-Fi | Wi-Fi, Compatible with Alexa, Compatible with Google Home | Wi-Fi | |||