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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Honeywell THX321WFS3001W Smart thermostat with RedLINK 3.0
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Honeywell THX321WF2003W Smart thermostat with RedLINK
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Honeywell TH8320R1003 White Precise temperature control (+/- 1°F)
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Braeburn 7320 Smart Wi-Fi compatible
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LUX TQX WiFi enabled
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Honeywell YTH6320R1001 White Equipment Interface Module for all HVAC
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| Brand | Honeywell | Honeywell | Honeywell | Braeburn | LUX | Honeywell |
| Model | THX321WFS3001W | THX321WF2003W | TH8320R1003 | 7320 | TQX | YTH6320R1001 |
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| Price | €356.91 | €356.99 | €130.87 | €208.37 | €151.72 | €225.05 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Jun 24, 2026 | Jun 24, 2026 | May 27, 2026 | May 20, 2026 | Jun 24, 2026 | Jun 19, 2026 |
| Type | Smart Thermostat | Smart Thermostat | Smart Thermostat | |||
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