1 / 5Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat
The Honeywell Home RTH9585WF1004 is a Wi-Fi smart color thermostat with a customizable touchscreen, flexible scheduling, and stated Alexa and Google Home compatibility. It requires a C-wire and is not compatible with 120–240V electric baseboard heat.
At a glance
- Customizable color touchscreen lets users tailor the display to their décor.
- Offers flexible scheduling and listed fan settings for On, Automatic, and Circulate.
- Manufacturer states it works with Amazon Alexa, Google Home, and its mobile app.
- Listed as ENERGY STAR certified, with monthly energy reports and personalized energy-use tips.
Often bought together
Pros and cons
Pros
- Touchscreen, voice, and app-based control options are listed.
- Flexible schedules can accommodate household routines or utility peak-rate pricing.
- Fan settings include continuous, system-linked, and circulate operation.
Cons
- Requires a C-wire, which may require checking the existing wiring or a compatible power adapter before installation.
- Does not work with 120–240V electric baseboard heat.
Technical specifications
10 specifications| Brand | Honeywell Home |
|---|---|
| Model | RTH9585WF1004 |
| Control methods listed | Touch Screen, Voice |
|---|---|
| Special features | Customizable color touchscreen, Smart Response Technology, Energy Star certified |
| Dimensions listed | 0.88"D x 4.5"W x 3.5"H |
|---|---|
| Compatible systems listed | Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. |
| Power requirement | C-Wire required. |
| Incompatible system listed | Does NOT work with electric baseboard heat (120-240V). |
| Fan control options | On: Fan is always on; Automatic: Fan runs only when the heating or cooling system is on; and Circulate: Fan runs randomly about 35% of the time. |
|---|---|
| App and smart-home compatibility | Amazon Alexa and Google Home, as well as our mobile app |
What to know before buying
Listing details to confirm
Check heating-system compatibility and C-wire availability before purchase, heating-only oil furnace systems are stated to require a C-wire, while most heat/cool oil furnace systems are stated as compatible. The listing also mentions a possible C-wire power adapter but does not confirm whether one is included.
Who is it for?
A good fit for
- Households with a compatible forced-air, hot-water, steam, or heat-pump system and a C-wire.
- Buyers who want a customizable touchscreen, programmable schedules, and stated app or voice control.
Less suited to
- Homes using 120–240V electric baseboard heat.
- Installations without a C-wire unless a suitable power solution is confirmed.
Customer reviews on Amazon
- 5 stars
72% 72% - 4 stars
12% 12% - 3 stars
4% 4% - 2 stars
3% 3% - 1 star
9% 9%
The supplied evidence includes an aggregate rating of 4.3 out of 5 stars but no customer comments or rating count. That figure alone does not identify what buyers liked or disliked, check system compatibility and C-wire requirements against your installation needs.
Frequently asked questions
Does the RTH9585WF1004 require a C-wire?
Yes. The listing says a C-wire is required and advises checking whether your home needs a C-wire power adapter, it does not confirm that an adapter is included.
What heating systems does this thermostat support?
The listing names forced-air gas, oil, or electric systems, hot water and steam, and heat pumps with electric backup. It says the thermostat does not work with 120–240V electric baseboard heat.
Can it be controlled by voice or a phone app?
Voice control is listed, and the manufacturer states compatibility with Amazon Alexa, Google Home, and its mobile app.
Does it support custom schedules?
The listing describes flexible programming for personal schedules or utility peak-rate pricing.
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