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The only savings claim here given in dollars and credited to the EPA

Amazon 53-026123

An Alexa smart wall thermostat built on Honeywell technology, citing an EPA estimate of ninety dollars a year saved.

Amazon Smart Thermostat on a wall with simple display

Amazon 53-026123

An Alexa smart wall thermostat built on Honeywell technology, citing an EPA estimate of ninety dollars a year saved.

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
C-wire
Required — stated in the product title
Savings claim
EPA estimate: Energy Star certified thermostats save an average of $90 on yearly energy bills
Ecosystem
Alexa and Ring; comfort zones via select Alexa devices using temperature or presence detection
Scheduling
Home, away and sleep schedules, or automatic control with Alexa+
Remote control
Alexa app
Technology
Honeywell Home thermostat technology
Rebates
The maker emails details of local energy-provider rebates after purchase
Accuracy
Not stated by the maker
Amazon reference
B08J4C8871
EAN
0840080537740
  • The only savings claim on this shelf given in dollars and attributed to a third party: an EPA estimate of $90 a year
  • Builds comfort zones from other Alexa devices using their temperature readings or presence detection, which nothing else here does
  • C-wire required, stated in the title — three thermostats here do not need one

Best for: An Alexa household with a C-wire in the wall, wanting Alexa and Ring built in at the lowest price on this shelf

≈ $57
Check price on Amazon

Specifications

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
C-wire
Required — stated in the product title
Savings claim
EPA estimate: Energy Star certified thermostats save an average of $90 on yearly energy bills
Ecosystem
Alexa and Ring; comfort zones via select Alexa devices using temperature or presence detection
Scheduling
Home, away and sleep schedules, or automatic control with Alexa+
Remote control
Alexa app
Technology
Honeywell Home thermostat technology
Rebates
The maker emails details of local energy-provider rebates after purchase
Accuracy
Not stated by the maker
Amazon reference
B08J4C8871
EAN
0840080537740

What the maker puts in writing

  • C-wire required — in the product title
  • Alexa and Ring; comfort zones from other Alexa devices
  • Home, away and sleep schedules, or Alexa+ automatic control
  • EPA estimate: Energy Star thermostats save an average of $90 a year
  • Honeywell Home thermostat technology

The claim, properly attributed

Ninety dollars a year, credited to the EPA, for Energy Star thermostats as a class.

That is the most honestly framed savings statement on this shelf, because it does not pretend to be a measurement of this device. The two other claims here are percentages, one with a baseline and one without.

Alexa, and only Alexa

No Google, no Apple, no vendor-neutral app. Two Honeywell thermostats on this shelf name three or four platforms between them.

If the house already runs on Alexa, that narrows to an advantage: the other Echo devices become sensors, which no other thermostat here can do.

Availability

Read on the day this page was built: $57 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

Is the $90 saving specific to this thermostat?

No, and the listing is clear about it: *According to EPA estimates, ENERGY STAR certified thermostats save an average of $90 on yearly energy bills.* That is a category average, not a measurement of this product. The ecobee on this shelf claims up to 23 per cent against a named baseline, which is a different kind of claim.

What are comfort zones?

Other Alexa devices in the house act as remote sensors, so the thermostat can respond to the bedroom temperature rather than the hallway. On this shelf only this thermostat offers it, and it depends on already owning the Alexa devices.

Do I need a C-wire?

Yes — it is in the product title. If your wall has no common wire, the Sensi, the Suuwer and the riseem S3001 on this shelf are the three that work without one on most systems.

More outlet thermostats

  • 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
  • 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

Elsewhere in the spares drawer

  • LISOL full mesh air conditioner cover fitted over an outdoor condenser unit

    LISOL Not stated by the maker

    A full-height mesh cover 28 by 28 by 32 inches in PVC-coated polyester, with a drawstring and a buckled strap.

    Type
    Full-coverage mesh — breathable
    Size
    28 in long × 28 in wide × 32 in high
    Material
    Heavy-duty PVC-coated polyester mesh
    Fixing
    Adjustable drawstring plus a strap with a plastic buckle
    Coverage
    Top to bottom, all surfaces, with the top fully covered
    Airflow
    Mesh allows circulation; stated to have no negative effect on condenser operation
    Keeps out
    Leaves, twigs, acorns, cottonwood and grass clippings
    Guarantee
    Refund or free replacement offered by the maker
    Sizes available
    Not stated — one size published
    Amazon reference
    B08HWFKL2W
    EAN
    0883339907949
    • The only cover here that is both full height — 32 inches, down to the base — and breathable mesh
    • States outright that it does not affect condenser operation, so it can stay on through the cooling season
    • The most expensive mesh cover on this shelf, at more than three times the price of two 36-inch mesh tops here

    Best for: A condenser under trees that drop acorns and cottonwood, where the cover should stay on all year

    ≈ $33
    Check price on Amazon
  • 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

All outlet thermostats