1. HVAC Thermostats Offered
  2. sku: 3742306850439653
  3. CONTROLLED AIR SYSTEMS T21-B3B11

CONTROLLED AIR SYSTEMS T21-B3B11 Programmable Thermostat

T21-b3b11 Controlled Air Systems Inc Discontinued Programmable Thermostat -

( Brand: Controlled Air Systems ), ( Manufacturer Part Number: T21-B3B11 ), ( Part Type: Thermostat ), ( Color: White ), ( Programmability: Programmable )

Review CONTROLLED AIR SYSTEMS Inc Discontinued Programmable Thermostat

The T21-B3B11 Controlled Air Programmable Thermostat is a versatile and energy-efficient solution for managing your home's heating and cooling system. This thermostat is designed to provide precise temperature control, convenience, and energy savings, making it an excellent choice for homeowners seeking to optimize their indoor environment.

The T21-B3B11 features a sleek and modern design, with a large, easy-to-read digital display that shows the current temperature and the selected temperature settings for each programming period. It also includes a backlit screen, ensuring that the display remains clear and visible in low-light conditions.

This programmable thermostat offers up to 6 flexible temperature settings per day, allowing you to customize the climate in your home to fit your daily routine. You can set the temperature for waking up, leaving for work, returning home, and going to bed, ensuring that your home is always comfortable when you need it to be. The thermostat also includes a vacation mode, which can be used to maintain a low temperature while you're away, helping to save energy and reduce your utility bills.

The T21-B3B11 is compatible with both 208/240V and 115V systems, making it a flexible option for a wide range of residential heating and cooling systems. It also includes a built-in opening door detector, which ensures that the fan continues to run for a short period of time after the door is opened, helping to maintain even temperatures in your home.

Installation of the T21-B3B11 is straightforward, with clear instructions provided in the user manual. The thermostat also includes a C-wire adapter, making it compatible with systems that do not have a dedicated C-wire. Additionally, the thermostat includes a 5-year limited warranty for added peace of mind.

In summary, the T21-B3B11 Controlled Air Programmable Thermostat is a feature-rich and energy-efficient solution for managing your home's heating and cooling system. With its flexible programming options, modern design, and compatibility with a wide range of systems, it offers homeowners the ability to customize their indoor environment while saving energy and reducing utility bills.

A controlled air T21-B3-B11 programmable thermostat is a popular choice for homeowners seeking energy efficiency and comfort in their heating and cooling systems. Here are some pros and cons to help you make an informed decision:

Pros:

1. Energy savings: A programmable thermostat allows you to set heating and cooling schedules, reducing energy usage and saving you money on utility bills.

2. Comfort: By setting temperatures according to your daily routine, a programmable thermostat ensures that your home is comfortable when you need it to be.

3. Convenience: With the ability to program temperature settings in advance, a programmable thermostat eliminates the need to manually adjust the temperature each day.

4. Accuracy: A programmable thermostat ensures consistent temperature readings and adjustments, leading to better overall comfort and energy efficiency.

5. Remote access: Some models offer remote access via smartphone apps or web portals, allowing you to make adjustments to the temperature from anywhere.

Cons:

1. Initial cost: While the long-term energy savings may outweigh the upfront cost, a programmable thermostat can be more expensive than a manual thermostat.

2. Learning curve: Some homeowners may find it challenging to program the thermostat or may prefer the simplicity of a manual thermostat.

3. Maintenance: While generally low-maintenance, a programmable thermostat may require occasional battery replacements or software updates.

4. Compatibility: Ensure that the thermostat is compatible with your home's heating and cooling system before making a purchase.

In conclusion, a controlled air T21-B3-B11 programmable thermostat offers energy savings, comfort, convenience, accuracy, and even remote access, making it a worthwhile investment for homeowners seeking to optimize their heating and cooling systems. However, the initial cost and potential learning curve are considerations that should be taken into account before making a purchase. If you're comfortable with the upfront investment and willing to learn how to use the thermostat effectively, the benefits are likely to outweigh the cons.

Details:

Brand new but does include original packaging. Does not come with a manual.

part #: t21b3b11 prices

  • $14.99-$54.95

specifications thermoditto:

  • brand: Controlled Air Systems
  • mpn: T21-b3b11
  • part type: Thermostat
  • color: White
  • programmability: Programmable

returns thermoditto:

  • paid by: Buyer
  • time: 14 Days
  • method: Money back
  • policy: Returns Accepted

shipping thermoditto:

  • class: Standard
  • cost: $0.00
  • type: Fixed
  • transit: 3-9 Days
  • carrier: USPS
  • service: USPS Ground Advantage

payments thermoditto:

  • other
  • wallet: Paypal
  • credit card: Mastercard

general thermoditto:

  • Heating, Cooling Air > Thermostats > Programmable Thermostats
  • condition: New

seller thermoditto:

  • rating: 98.6%
  • city: Macungie, Pennsylvania
  • # reviews: 20839

offer thermoditto:

  • started: May 20, 2025
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
part type: thermostat, programmability: programmable,
category: home & garden > heating, cooling air > thermostats > programmable thermostats, color: white, sku: 3742306850439653,

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2 offers $14.99–$54.95 USD
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  • Offer #2: $54.95 price + $0.00 shipping estimate = $54.95* total.FREE SHIPPING

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