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Outdoor temperature, humidity and a forecast on the wall — and a C-wire, three times

Honeywell Home RTH9600WF2022

A Wi-Fi color touchscreen wall thermostat showing indoor and outdoor temperature, humidity and a forecast, requiring a C-wire.

Honeywell Home RTH9600WF smart color thermostat with touchscreen on a wall

Honeywell Home RTH9600WF2022

A Wi-Fi color touchscreen wall thermostat showing indoor and outdoor temperature, humidity and a forecast, requiring a C-wire.

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
On screen
Indoor and outdoor temperature and humidity, plus a daily weather forecast
Display
Customisable high-definition color
C-wire
Required; a C-wire power adapter may be needed
Compatible with
Forced air (gas, oil or electric), hot water and steam, heat pumps with electric backup
Not compatible with
Electric baseboard heat at 120–240 V; heating-only oil furnaces without a C-wire
Control
App, Amazon Alexa, Google Assistant, Microsoft Cortana and others
Certification
Energy Star
In the box
Thermostat, wall plate, screws, anchors, quick start guide, ID card, wire labels, user guide
Amazon reference
B09TBGGLQB
EAN
0194159008144
  • The only thermostat on this shelf with outdoor temperature, humidity and a forecast on the device itself
  • Lists what it will not work with as precisely as what it will — electric baseboard at 120–240 V, heating-only oil furnaces without a C-wire
  • The most expensive thermostat on this shelf, and it requires a C-wire — three thermostats here do not

Best for: A forced-air or hydronic system with a C-wire already present, where the thermostat should be the room’s weather station too

≈ $145
Check price on Amazon

Specifications

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
On screen
Indoor and outdoor temperature and humidity, plus a daily weather forecast
Display
Customisable high-definition color
C-wire
Required; a C-wire power adapter may be needed
Compatible with
Forced air (gas, oil or electric), hot water and steam, heat pumps with electric backup
Not compatible with
Electric baseboard heat at 120–240 V; heating-only oil furnaces without a C-wire
Control
App, Amazon Alexa, Google Assistant, Microsoft Cortana and others
Certification
Energy Star
In the box
Thermostat, wall plate, screws, anchors, quick start guide, ID card, wire labels, user guide
Amazon reference
B09TBGGLQB
EAN
0194159008144

What the maker puts in writing

  • Wi-Fi color touchscreen, customisable color, Energy Star
  • Indoor and outdoor temperature and humidity, plus daily forecast
  • C-WIRE REQUIRED — adapter may be needed
  • Forced air, hot water, steam, heat pumps with electric backup
  • Not for electric baseboard heat at 120–240 V
  • Alexa, Google Assistant, Cortana and more

The wall becomes a weather station

Eight thermostats on this shelf tell you how warm the room is. This one tells you how warm it is outside, how humid, and what tomorrow brings.

That is not a comfort feature, it is a diagnostic one: a house that needs the furnace at 50 °F outside has a different problem from one that needs it at 20 °F.

And the sentence to read first

C-wire required, stated three times with a note about adapters.

If your wall has four wires and no common, this thermostat is a two-part purchase. The Sensi on this shelf works without one on most systems and costs less.

Availability

Read on the day this page was built: $145 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

The questions that keep coming up

What is a C-wire and do I have one?

A common wire that gives the thermostat continuous power rather than borrowing it from the heating circuit. This thermostat requires one and says so three times, including a note that an adapter may be needed. Three thermostats on this shelf — the Sensi, the Suuwer and the riseem S3001 — work without one on most systems.

Why does the outdoor reading matter?

Because it tells you whether the heating is struggling or the house is leaking. Nine thermostats on this shelf, and this is the only one that puts the outside temperature, the humidity and tomorrow’s forecast on the wall.

How is it different from the other Honeywell color thermostat here?

By the published text: this one adds the outdoor readings and the forecast, names Cortana among the platforms and itemizes the box. The RTH9585WF publishes the fan Circulate duty — about 35 per cent of the time — which this one does not, and costs less.

More outlet thermostats

  • Honeywell Home RTH9585WF Wi-Fi smart color thermostat in grey

    Honeywell Home RTH9585WF1004

    A seven-day programmable Wi-Fi color thermostat with monthly energy reports and a Circulate fan mode running about 35 per cent of the time.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    Programming
    7 day, flexible, including for utility peak-rate pricing
    Display
    Color touchscreen, personalisable
    Fan modes
    On; Automatic; Circulate — running randomly about 35% of the time
    Reports
    Monthly energy reports with personalized tips
    C-wire
    Required
    Compatible with
    Forced air (gas, oil or electric), hot water and steam, heat pumps with electric backup
    Not compatible with
    Electric baseboard heat at 120–240 V
    Control
    App, Amazon Alexa and Google Home
    Certification
    Energy Star
    Amazon reference
    B075BF6V58
    EAN
    0085267911313
    • The only thermostat on this shelf that quantifies its Circulate fan mode — about 35 per cent of the time — rather than naming it and stopping
    • Monthly energy reports with tips, which only this thermostat and its dearer stablemate publish
    • C-wire required, where three thermostats on this shelf work without one on most systems

    Best for: A forced-air or hydronic house on a time-of-use tariff, with a C-wire already in the wall

    ≈ $110
    Check price on Amazon
  • riseem WiFi smart thermostat with blue backlit LCD on a wall

    riseem STN701W-Blue

    A Wi-Fi single-stage wall thermostat with seven-day programming, requiring a C-wire and a 2.4 GHz network.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    Systems
    Conventional single stage, 1 heat / 1 cool, gas oil or electric, plus air conditioning
    C-wire
    Required; cannot run on batteries
    Terminals
    RH, RC, W, Y, G, C. Does not support W2, Y2, O/B, E, L, AUX, ACC+, ACC−, S, X, X2
    Not compatible with
    2H/1C, 2H/2C, 3H/2C, 4H/2C multi-stage, heat pumps, heat-only, cool-only, 120–240 V line voltage, PTACs, mini splits, RV air conditioners
    Wi-Fi
    2.4 GHz only — stated twice
    Programming
    7 day, or none
    Accuracy
    Within 2 °F
    Size
    0.98 in D × 4.72 in W × 3.86 in H
    Amazon reference
    B0HK7QP8KC
    EAN
    0607607717210
    • Lists its supported and unsupported terminals by name, which no other thermostat on this shelf does
    • Publishes an accuracy figure and its own dimensions, both of which most of this shelf omits
    • C-wire required and no battery fallback at all — the most restrictive power requirement on this shelf

    Best for: A single-stage forced-air system with a common wire, where seven-day programming matters more than a degree of accuracy

    ≈ $50
    Check price on Amazon
  • riseem non-programmable thermostat in white with backlit LCD display

    riseem S3001-White

    A non-programmable single-stage wall thermostat accurate to ±1 °F, running on 24 V or two AA cells with no C-wire on most systems.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    Systems
    Single-stage heating and cooling; gas, oil or electric furnace; boiler radiant; forced air; gas fireplace at 24 V; cooling only
    Not compatible with
    Multi-stage, 3-wire hydronic, heat pumps with or without auxiliary heat, dual fuel, mini splits, RV, convectors, radiant ceiling, electric baseboard at 120–240 V
    Power
    24 V AC or 2 AA batteries; C-wire needed only on heat-only and cool-only systems
    Accuracy
    ±1 °F
    Display range
    41 °F to 95 °F
    Control range
    44 °F to 90 °F
    Swing
    Separate heating and cooling cycle rate
    Installation
    Large terminal blocks, universal sub-base, within 30 minutes; 2 to 5 wires
    Warranty
    2 years, with 30-day free return
    Amazon reference
    B0DNDS8PKF
    EAN
    0607605200691
    • The only thermostat on this shelf that publishes both its compatible and its incompatible system lists
    • Publishes ±1 °F accuracy and both temperature ranges, at the joint-lowest price on this shelf for a wall thermostat
    • Non-programmable: no schedule, no app, no voice control

    Best for: A single-stage furnace or boiler where the thermostat should just hold a temperature, in a wall with no common wire

    ≈ $27
    Check price on Amazon

Elsewhere in the spares drawer

  • LPECMX magnetic vent cover screens with PVC frame for floor registers

    LPECMX 01

    Four magnetic 4-by-10-inch vent filters with a PVC frame and dual-layer mesh, washable and reusable.

    Type
    Indoor vent filter screens — not an air conditioner cover
    Size
    4 × 10 in, stated to fit most floor, wall and ceiling vents
    Quantity
    4
    Fixing
    Magnetic strips, stated 30% stronger than before; reinforced PVC frame
    Filtration
    Dual-layer mesh, for dust and pet hair
    Maintenance
    Vacuum or rinse under the tap; reusable
    Construction
    High-density PVC frame with an anti-fade coating
    Fits metal vents
    Yes — the magnets need a ferrous register
    MERV rating
    Not stated by the maker
    Amazon reference
    B0F53P364C
    EAN
    0723747189813
    • The cheapest product on this shelf, and the only one that works indoors on the register rather than outdoors on the machine
    • Washable and reusable, so it is a purchase rather than a subscription
    • Nothing to do with protecting an air conditioner: it filters room air at the register

    Best for: A floor register in a dusty room or a house with pets, where the duct keeps filling with hair

    ≈ $8
    Check price on Amazon
  • Mrrihand heavy duty waterproof air conditioner cover on an outdoor unit

    Mrrihand UPC

    A 420-denier waterproof cover for units up to 24 by 24 by 30 inches, with an air vent and side Velcro openings.

    Type
    Waterproof, sealed fabric — with an air vent
    Fits
    Units up to 24 × 24 × 30 in
    Material
    420D polyester oxford, heavy duty waterproof
    Ventilation
    Air vent, to prevent moisture and condensate build-up inside the unit
    Fixing
    Elastic hem cords; side Velcro openings that seal around a duct
    Handling
    Padded handle for fitting and removal
    Protects against
    Rain, snow, dust, sun, debris, hail
    Sizing advice
    Choose a cover 2 inches larger than the unit, as the maker recommends
    Cleaning
    Water or mild soap; not machine washable
    Included
    Storage bag
    Amazon reference
    B09DP76Z54
    EAN
    0720168356350
    • The only listing on this shelf that publishes a fabric weight: 420 denier polyester oxford
    • The only waterproof cover here with an air vent, named as preventing moisture and condensate inside the unit
    • A sealed cover traps moisture, and the air vent is an admission of the problem rather than a solution to it

    Best for: A condenser shut down for a hard winter of snow and hail, uncovered again in spring

    ≈ $27
    Check price on Amazon
  • RUNZEG waterproof air conditioner cover fitted over an outdoor unit

    RUNZEG Not stated by the maker

    A waterproof polyester oxford cover 26 by 26 by 32 inches, with a drawstring and a carrying bag.

    Type
    Waterproof, sealed fabric
    Size
    26 in wide × 26 in deep × 32 in high
    Fits
    Outdoor AC units up to 26 × 26 in; also swamp coolers, pool heaters, condensers, heat pumps and compressors of similar size
    Material
    Polyester oxford with a professional waterproof undercoating
    Fixing
    Adjustable drawstring cord
    Keeps out
    Snow, rain, wind, sunlight, dust, resin, leaves, debris, bird droppings
    Cleaning
    Damp cloth or rinse; dries in the sun
    Included
    Carrying bag
    Breathability
    Claimed as more breathable than PVC covers; no figure
    Amazon reference
    B0DG47G9F1
    EAN
    0784668670798
    • Full height at 32 inches and fully waterproof, at the lowest price on this shelf for a sealed cover
    • Names five other appliances it fits — swamp coolers, pool heaters, condensers, heat pumps, compressors — which is the widest application list here
    • It is a sealed cover: moisture that gets in cannot easily get out, and unlike the other waterproof cover here it has no air vent

    Best for: A condenser, pool heater or swamp cooler shut down for the winter in a wet climate

    ≈ $10
    Check price on Amazon

All outlet thermostats