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Thermostat Types
LCD Display
Ease of Installation
Intermediate (Installs < 60 minutes)
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Choose between 5/1/1 or 5/2 Day Programs
Aprilaire 8466 5/2 or 5/1/1 Day Programmable Thermostat
Aprilaire 8466 5/2 or 5/1/1 Day Programmable Thermostat
Aprilaire 8466 5/2 or 5/1/1 Day Programmable Thermostat
Item# 30202
Price: Normally $90.00 
Hot Deal $64.93
Free shipping on orders over $175 - See Details


  • Large, clear, backlit display is easy to read - even in the dark
  • Displays room temperature, temperature setting, and optional outdoor temperature
  • Front battery door access for fast, easy replacement
  • Built in compressor protection
  • Circulation fan mode for air cleaning
  • Air filter, humidifier, dehumidifier, and HVAC service indicators
  • Auto backlight (activated with first button press)

Essential Info

Give your old-school heating and cooling system a higher education. The simple addition of a programmable thermostat allows you to create personalized programs based on your lifestyle, enabling you to heat or cool your home when you need it and reduce energy costs. In fact, The U.S. Department of Energy recommends programmable thermostats to save up to 30% on heating and cooling bills.

The Aprilaire 8466 features multi-stage heat/cool or heat pump modes and the ability to override the program schedule at any time. Choose between 5/1/1 or 5/2 day programming to customize your daily schedules to best match your needs. A special progressive recovery feature assures that heating and cooling equipment start at the optimum time to reach the chose temperature by the time you want it.


Important notes:
Smarthome does not accept any returns for this product. If defective, you will need to contact the manufacturer directly for all warranty issues.
Manufacturer contact information: Research Products Corp, Tel: (888) 782-8638


12 Ratings
5 star: 75%  (9)
4 star: 17%  (2)
3 star: 0%  (0)
2 star: 0%  (0)
1 star: 8%  (1)
Average Customer Rating
(12 customer ratings)
Share your thoughts with other customers
CAROLYN -- white plains, KY   3/30/2014
Excellent product
Wolfgang Hirschberg -- teaneck,New Jersey   9/1/2013
I had this thermostat installed recently and find the clicking noise it emits when it turns on or off annoying since it is in my bedroom.Perhaps this is a defect in this particular item,but if not, i cannot recommend it.
PMR -- longmeadow, MA   12/8/2011
Excellent thermostat,quick delivery
EDUARDO -- davison, MI   12/3/2010
Its programmability makes it a wonderful thing to have and save on heating and cooling costs when nobody is home.
RENATA -- lorton, VA   9/10/2010
Product worked as advertised, easy to install
LUIS -- crestview, FL   8/26/2010
Really liked the thermostate. It is easy to program and friendly user. I would recommend it to anybody

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