TLDR Review: Honeywell T5 Smart Thermostat
Verdict
The Honeywell Home RTH8800WF2022 T5 WiFi Smart Thermostat offers an attractive, easy-to-install upgrade packed with useful features like Alexa compatibility, touchscreen controls, and energy-saving schedules. However, it demands a C-wire for power and relies heavily on cloud connectivity, which can cause frustrating functionality drops during outages. The software’s quirks—such as unpredictable overrides and time zone errors—plus reported poor customer support may dampen the experience for some users. If you want a thermostat that’s simple, has solid app controls, and works best in a stable Wi-Fi environment, this is a worthy pick. But if you want more reliable offline operation or smoother software, it’s wise to keep an eye out for alternatives in the smart thermostat space, especially those with battery backup or less cloud dependence.
- Top pro:
- Perfect upgrade from a non-smart thermostat with seamless Alexa integration.
- Top con:
- Requires a common wire (C-wire) for power, limiting use in homes without it unless opting for a different model.
Pros
- •Perfect upgrade from a non-smart thermostat with seamless Alexa integration.
- •Extremely easy installation and setup, often completed in under 10 minutes without special tools.
- •Compatible with most existing 5-wire wiring setups, requiring no additional wiring modifications.
- •Clear, responsive touchscreen display easily readable from across large rooms.
- •User-friendly app enhances control and complements the touchscreen well.
- •Attractive, modern design that updates room aesthetics nicely.
- •Scheduling and geofencing features help improve energy efficiency and allow setting home and away modes.
- •Supports control of multiple heating zones with individual schedules and easy overrides.
- •Hardware designed for easy replacement from previous Honeywell thermostats without rewiring.
- •Works well with heating systems and is Energy Star rated.
Cons
- •Requires a common wire (C-wire) for power, limiting use in homes without it unless opting for a different model.
- •Scheduling and “smart” features sometimes override manual temperature adjustments unpredictably, causing annoyances.
- •Adaptive recovery feature can lead to undesired temperature fluctuations during the day.
- •Some users reported the thermostat causing heating when cooling was intended due to poor software logic.
- •Disabling smart scheduling improves control but reduces overall usability and energy-saving benefits.
- •Troubleshooting can be frustrating, with HVAC professionals and DIYers finding the device misleading or complicated.
- •Relies heavily on a constant internet connection; loss of connectivity causes errors and loss of functionality.
- •Initial network syncing is often problematic, sometimes requiring multiple attempts or router resets.
- •Customer support is reported as unhelpful and inefficient.
- •Persistent issues with timer resetting to the wrong time zone, causing inconvenience.
- •Software and cloud dependence create ongoing user challenges and reliability concerns.
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How we researched this
About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from ShopSavvy's price data.
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