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Aprilaire

Aprilaire 8466 Heat Pump Thermostat

  • Based on 66 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Ohio Supply
Arrives Aug 23 – Aug 24
Order within 7 hours and 35 minutes
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Features

  • About the Aprilaire 8466 programmable dual powered Universal thermostat: 2Heat/1cool managing your home's heating and cooling system has never been easier or more efficient
  • This programmable thermostat allows you to specify the temperature in your home on a weekly and weekend basis, giving you customizable options for each setting
  • Set your temperature preferences by choosing between three stages of heat and two stages of cool. Easily program for the five weekdays and then choose from either a two day setting on the weekend or a day to day fluctuation

Description

Large 4.5 square inch lcd with high contrast for easier reading controls 3 stages heat/2 stages cool bright, white backlit display is easy to read easy to use temperature control and override program Schedule at anytime progressive recovery permanent program retention during power loss indefinite set point hold choice of 5/1/1 day Programmable, or 5/2 day displays room temperature, temperature setting and outdoor temperature.

Brand: Aprilaire


Model Name: 8466


Controller Type: Inches


Special Feature: Auto Changeover, Programmable


Color: 2


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 6 x 5 x 2 inches; 11.2 ounces


Item model number ‏ : ‎ 8466


Date First Available ‏ : ‎ February 23, 2010


Manufacturer ‏ : ‎ Research Products Corporation


Best Sellers Rank: #177,334 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #225 in Home Programmable Thermostats


#225 in Home Programmable Thermostats:


Customer Reviews: 4.2 4.2 out of 5 stars 66 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 23 – Aug 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Worked Great
Over the years I purchased more then one of this exact same unit. I like it so much I will not change to a different unit. A good product
Reviewed in the United States on May 9, 2023 by Amazon Customer
    • Programmable Workhorse Thermostat
An excellent HVAC thermostat that is well-constructed. Easy to operate and programmable. These units are industrial strength and not considered smart thermostats, but unlike many smart thermostat models, this one is extremely accurate. Only turns on the AC when needed. I've had "smart" before, and my bill was always on the high side. The so-called smart ones stayed on too long, even when the room had reached the preset temperature. ... show more
Reviewed in the United States on August 4, 2025 by james309
    • Easy Swap-out for current Aprilaire Thermostat
We had a six year old unit of this model. The "increase / up" adjustment button was working only intermittently, which also made clearing programmed alerts almost impossible. We liked the unit and its flexibility, until this button issue happened. Rather than pay to have a new thermostat installed, we decided to swap out our Aprilaire 8466 with a new unit. Couldn't beat the price. Didn't even need to change the base plate, so no wiring skills required. This is the way to go if you want an inexpensive DIY fix (and you have any thermostat model you can still buy). ... show more
Reviewed in the United States on December 8, 2018 by ciksralos
    • 2 of 3 of these failed. One in 2-3 years, second after 4 months.
Bought November to replace another of same make/model which failed after two-three years. This one failed after 4 months. House has two of these thermostats. I swapped them before replacing, so one of the two originals is where the first one failed, so it’s the older and still working. The new one failed in the location of the working one eliminating the possibility that the wiring or transformer is the cause. ... show more
Reviewed in the United States on April 19, 2020 by Frank
    • Aprilaire 8466
For Southern homeowners who need heat in the morning and air-conditioning in the afternoon, the 8466 is great! Mine has been working for more than a week and I love it! It changes between heat and air automatically, alleviating any manual switching! Since it is universal, one can choose heating/air-conditioning or a heat pump with the flip of a switch! I didn't need to replace my seven year-old Aprilaire 8365, but I needed a unit that my wife could program easily, and the 8466 fit the bill! No touch screen, just buttons and a large, brightly lit screen, and for the price, you can't beat it! However, if you want your heating temperature close to your air-conditioning temperature or you don't want your aux heat(higher bills)on in the mornings, you will need Technical Support help. Believe me, that is not a problem since their Customer Service is superb! Very quick response time and they are very thorough! It is a great company to work with! ... show more
Reviewed in the United States on March 25, 2013 by John Jertson
    • Good Thermostat but No Auto Feature.
This works but I bought it because it said it automatically goes from heat to cold without me physically switching it over but that's not true.
Reviewed in the United States on August 4, 2025 by cmroesch
    • Great product great price
Installed easy. I love the circulate function and that is the primary reason I bought it. No more cold spots in the house. Easy to program as well.
Reviewed in the United States on April 2, 2015 by JJP
    • Noisy
This model clicks every time it kicks on and then about the next three minutes it does it again. Too many clicks all day and through the nights. ANNOYING
Reviewed in the United States on September 14, 2023 by cassandra rawls

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