Buying Guide
Nest vs Ecobee vs Honeywell
Smart thermostats save 10-20% on Tampa cooling bills and offer remote control via phone. Here’s which is best for your Tampa home.
Quick Verdict
For Tampa: Ecobee wins for most homes, best-in-class humidity control (critical in Tampa), room sensors for accurate zone cooling, $849 installed. Nest second: beautiful, intuitive, learning AI, $849 installed. Honeywell T10/8000 for humidity control priority, $899 installed. All three are excellent, pick based on ecosystem preference. Call (813) 343-2212.
Smart Thermostat Comparison
| Factor | Nest Learning | Ecobee Premium | Honeywell T10/8000 |
|---|---|---|---|
| Install cost (Tampa) | $849 | $849 (Premium) | $899 (T10/8000) |
| Remote sensors | No (homekit extensions) | Yes (included) | Yes (optional) |
| Learning AI | Yes (best) | Yes | Basic schedule-based |
| Humidity control | Basic | Excellent | Excellent |
| Voice control | Google Assistant | Alexa + Siri + Google | Alexa + Google |
| Energy report | Good | Detailed | Basic |
| Utility rebates eligible | Often | Often | Often |
| App experience | Best UI | Functional, feature-rich | Functional |
| Tampa humidity sensitivity | Standard | Excellent (humidity mode) | Excellent (humidity mode) |
| Works with any HVAC | Most systems | Most systems | Most systems |
| C-wire required | Optional (power kit) | Optional (power extender) | Required |
Florida-Specific Considerations
Tampa-specific considerations:
- Humidity control priority: Ecobee Premium and Honeywell T10 have dedicated humidity settings that can override cooling temp to hold humidity below 55%. Critical in Tampa.
- Room sensors: Ecobee includes sensors for multi-room temp monitoring. Great for Tampa homes with bonus rooms that are always too hot.
- C-wire installation: Pre-2010 Tampa homes often lack C-wire. Nest includes power kit. Ecobee includes power extender. Honeywell requires C-wire (add $199 retrofit).
- Utility rebates: TECO and Duke Energy occasionally offer $75-$100 rebates on qualifying smart thermostats. Check current programs.
Nest vs Ecobee vs Honeywell T9: Sensor Network and Humidity Control
The single biggest difference between these three smart thermostats is how they read your home and how they handle humidity, which matters more in Tampa Bay than just about anywhere else in the country. The Nest Learning Thermostat (4th gen) ships as a single unit with no remote sensors in the box. It relies on its built-in temperature, humidity, and proximity sensors plus a learning algorithm that watches your behavior for a week or two and builds a schedule on its own. Nest does display indoor humidity, but it has no humidity setpoint and no overcool function, so the thermostat will not run the AC longer just to pull moisture out of the air. In a Tampa August, that is the weakest link of the three.
The Ecobee SmartThermostat Premium is the opposite philosophy. You get one SmartSensor in the box, with support for up to 32 more, and the thermostat averages temperature and occupancy across every sensor in your follow-me group. More importantly for our climate, Ecobee has a true humidity setpoint and an overcool-to-dehumidify mode that lets the AC run an extra 1 to 2 degrees past your temperature setpoint when indoor humidity climbs above your target. That single feature is why most Tampa homeowners who care about sticky air end up on Ecobee.
The Honeywell T9 sits in the middle. It includes one wireless RedLink room sensor, supports up to 19 more, and has a clean humidity setpoint with auto-changeover between heat and cool. T9 also has the strongest native geofencing of the three, using your phone’s location to switch between home and away modes without you touching anything. All three units now support Wi-Fi and either Thread or Matter on the newer revisions, and all three integrate cleanly with Alexa, Google Assistant, and Apple HomeKit (Ecobee leads on HomeKit polish, Nest leads on Google Assistant tie-in).
Tampa Install Cost: Nest vs Ecobee vs Honeywell
Here is what you actually pay in Tampa Bay right now, hardware plus install. The Nest Learning Thermostat (4th gen) runs about $279 at retail. The Ecobee SmartThermostat Premium with one SmartSensor included runs about $249. The Honeywell Home T9 with one Smart Room Sensor included runs about $169 and is the budget pick of the three without giving up the features that matter for our climate. Extra Ecobee SmartSensors are around $40 in a 2-pack. Extra Honeywell sensors are around $50 each.
Pro install in Tampa Bay typically runs $125 to $225 depending on your existing wiring. If your current thermostat already has a 24V common wire (the C-wire), the swap is fast. If you have an older Tampa home, especially one built before 1985, there is a real chance you do not have a C-wire at the thermostat and the new unit will need one to power its Wi-Fi radio reliably. Adding a C-wire usually means pulling new low-voltage cable from the air handler or installing a Power Extender Kit at the air handler, which adds $50 to $150 to the job. We always check the wiring before quoting.
FREE estimates and FREE diagnosis on every service call, no exceptions. We will pull the faceplate, photograph what is actually behind your old thermostat, walk you through the options, and give you a flat number before any work starts. TECO and Duke Energy both offer rebates of $30 to $80 on qualifying ENERGY STAR smart thermostats when paired with a connected savings program enrollment, so the real out-the-door cost on a Honeywell T9 install with rebate can land near $200 all in.
Which Smart Thermostat Wins for Tampa Bay Comfort
If you live in Tampa and you only care about one thing, pick the thermostat that handles humidity best, because that is what makes a home feel cool at 76 degrees instead of clammy at 74. Ecobee wins that contest. The overcool-to-dehumidify mode is the most aggressive of the three. When indoor RH climbs to 60 percent and you have a target of 50, Ecobee will let the AC run a degree or two below your temperature setpoint to wring the moisture out of the air, then back off. Nest cannot do that. Honeywell T9 has a humidity setpoint but no real overcool function.
If your priority is whole-home zoning awareness, Honeywell T9 wins. The included room sensor plus the strongest native geofencing of the three make it the right pick for a multi-story house or a homeowner who wants the system to lean toward whichever room is occupied. T9 is also the easiest to retrofit into an existing schedule.
For Tampa Bay snowbirds and retirees who head north May through September, both Honeywell geofencing and Ecobee remote sensor monitoring are useful. You can drop the home into away mode automatically when your phones leave the area and pull live indoor humidity, temperature, and runtime data from anywhere with cell service. We have customers who catch a failing AC from an airport in Michigan because Ecobee texted them that indoor humidity hit 65 percent.
All three work with Goodman and Daikin variable-speed equipment over standard 24V control, which covers the majority of Tampa installs. If you have a fully communicating Goodman ComfortBridge or Daikin One+ system, you can either run the smart thermostat in 24V mode (you keep variable-speed but lose some advanced staging) or stay on the manufacturer’s communicating thermostat. We will tell you which way to go after we look at your equipment.
What We Recommend (and Why)
Pick Ecobee Premium for most Tampa homes: best humidity control + room sensors. Especially good for homes with temperature variation between rooms.
Pick Nest Learning for: Google ecosystem homes, best UI, beautiful design, learning schedules.
Pick Honeywell T10/8000 for: if you already have a Honeywell system, IQ or touchscreen preference, or humidity is THE top priority (dedicated humidity control shine).
Skip programmable-only thermostats: For $200-$300 more than a programmable ($349), you get smart features + remote control + energy savings that pay back in 1-2 years.
FAQ
Will a smart thermostat really save money?
In Tampa with 8-9 month cooling season: yes, typically 10-20% on cooling bills. $20-$40/month savings. 1-2 year payback.
Compatibility with Goodman/Daikin?
All three work with both brands. We verify during install. Variable-speed systems sometimes need specific thermostat models, we handle compatibility.
Does Nest really "learn"?
Yes, adjusts schedule based on when you’re home vs away. Takes 1-2 weeks to become effective.
What's a geofence?
Uses your phone location to know when you’re home or away. Turns AC down when you leave, starts cooling before you arrive. All three have this feature.
Any issues with HOA or older systems?
Rare. All three compatible with 95%+ of residential HVAC. HOA concerns usually not applicable (indoor device).
Which smart thermostat is best for Tampa humidity?
Ecobee SmartThermostat Premium is the strongest for our climate. The overcool-to-dehumidify mode lets the AC run a degree or two past the temperature setpoint to drop indoor humidity from 60 percent down to 50, which is what makes a Tampa home feel comfortable at 76 instead of clammy at 74. Honeywell T9 is a solid second with a humidity setpoint but no overcool. Nest is the weakest of the three for humidity control and has no setpoint at all.
Do I need a C-wire for a smart thermostat in my Tampa home?
For a reliable install, almost always yes. Smart thermostats need constant 24V power for Wi-Fi and the screen. Older Tampa homes built before 1985 commonly do not have a C-wire at the thermostat. The fix is either pulling a new low-voltage wire from the air handler or installing a Power Extender Kit, which Ecobee includes in the box and Honeywell sells separately. We always check first.
Will smart thermostats work with my Goodman or Daikin variable-speed system?
Yes. All three work with Goodman and Daikin equipment over standard 24V control wiring, which is what most Tampa homes have. If you have a fully communicating Goodman ComfortBridge or Daikin One+ system, the manufacturer’s communicating thermostat will give you more advanced staging and diagnostics, but a Nest, Ecobee, or T9 in 24V mode still gives you full smart features and runs the equipment fine.
Can geofencing actually save money in Tampa?
Yes, typically 8 to 15 percent on cooling cost if you are regularly away from home for work or travel. Geofencing uses your phone’s location to set the home back automatically when everyone leaves and bring it back to setpoint as you approach. Honeywell T9 has the strongest native geofencing of the three. Ecobee and Nest both offer it through their apps as well.
Does Home Therapist install all 3 brands?
Yes, we install Nest, Ecobee, and Honeywell T9 across Tampa Bay. FREE estimate on the swap, same-day install on stocked models when our schedule allows, and we handle the C-wire add or Power Extender Kit on older homes as part of the same visit. Call (813) 343-2212 and we will get a tech out.