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  • Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat
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Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat

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List Price: $69.99
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  • Large backlit display with soft-touch button interface
  • Precise temperature control of plus-or-minus-degrees fahrenheit with auto change from heat to cool
  • Exclusive Honeywell Smart Response Technology and filter change reminder
  • Compatible with heating and cooling system plus single stage heat pump systems
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Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat + Honeywell 50002883-001 Coverplate
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This item: Honeywell RTH6450D1009 5-1-1-Day Programmable Thermostat
Customer Rating (192) (555) (290) (147)
Price $ 54.93 $ 69.50 $ 61.37 $ 48.00
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Batteries Required Y Y Y Y
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Product Information

Item Package Quantity: 1
Technical Details
Part Number RTH6450D1009/A
Item Weight11.7 ounces
Product Dimensions12 x 10 x 3 inches
OriginMexico
Item model numberRTH6450D1009
Size1
ColorWhite
ShapeCurved
Item Package Quantity1
Display StyleDigital
CertificationEnergy Saving Thermostat
Batteries Required?Yes
Warranty DescriptionComes with Manufacturer Warranty.
  
Technical Specification
Additional Information
ASINB003VIWQL4
Best Sellers Rank #5,506 in Home Improvement (See top 100)
Shipping Weight13.6 ounces (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableJune 28, 2010
  
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Product Description

Item Package Quantity: 1

From the Manufacturer

Maximize comfort, reduce household energy use, and save money with the RTH6450D 5-1-1 Programmable Thermostat from Honeywell. Featuring a user-friendly design that lets you program weekdays, Saturdays, and Sundays separately, this thermostat makes it easy to sync your home's heating and cooling system with your schedule, and it is Energy Star rated for efficiency you can count on. Programmable 5 1 1 day with 4 program periods per day. For heating and air conditioning systems. Large backlit display with menu driven programming. Soft key controls. Shows room and set temperature. Exclusive Smart Response technology. Compatible with most electric, gas oil single stage furnaces; heat pumps without backup heat; heat only, and cool only furnaces. Will not work on electric baseboard heat. Precise temperature control + 1 F. Automatically switches from heat to cool to adjust the preheating cooling of your home so you can feel comfortable at your programmed times. Battery powered. Approximate size: 3.75'' H. x 6'' W. x 1.25 W. Off white. ENERGY STAR rated.

Customer Reviews

Very easy to install and easy to program.
Brenda Anderson
This thermostat is great in that it holds the temp at a single setting or allows you to program by time of day.
Audrey RS
I had to replace an old thermostat and found this one easy to install and easy to use.
TD

Most Helpful Customer Reviews

151 of 161 people found the following review helpful By L. Veal on February 11, 2011
Item Package Quantity: 1
I had to replace an older cheaper Honeywell that decided it didn't know what time of day it was.

I decided to go with this more expensive model-- but I had reservations after having read some reviews and comments elsewhere where some people complained that the furnace was always on, or they were burning more oil or gas than before. . .

I found the reason--

It's called 'Smart Response Technology'

It's 'ON' by default if you do the quick DIY install.

To turn it 'OFF' you have to download the FULL MANUAL from the Honeywell site to see how to get into the ADVANCED Settings of the device. The pamphlet you get in the package is just your BASIC setup.

I bought the programmable Honeywell to control my oil usage and keep the furnace from heating the house in the dead of the night when everyone is in bed. And I would set the Program to turn the Furnace ON and reset the Temp back to 70 degrees at 7 AM. In short-- The Furnace turns ON at 7 o'clock and in time, (20 minutes or so) the house gets warm.

What SMART RESPONSE does is uses an algorithm to attempt to get the house to the Programmed Temp BEFORE the Programmed Time. The result is the Furnace will turn ON an hour or more BEFORE the time you set to raise the temperature until it hits 70 degrees EXACTLY at 7 AM.

Okay-- it's a nice, cute helpsy idea that I'm sure a Honeywell Programmer/Engineer is rightly proud of. Problem is, the Furnace is BURNING OIL when I don't WANT IT TO.

I didn't notice what the Thermostat was doing until late one night I was watching a movie real late-- when I heard the Furnace go ON and STAY ON at 4:30 in the morning. And I was like: "WTF?
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78 of 82 people found the following review helpful By F1 Nut on January 17, 2011
Item Package Quantity: 1 Verified Purchase
This is a nicely designed unit, and the instructions are easy to understand and follow. However, the product description is missing an important fact in that this particular model cannot accept a power feed from the system, and therefore REQUIRES the batteries to function. If your home doesn't have a system power feed, this functionality is of course irrelevant; however for those of us with this feature, other thermostats are probably a better buy.

As of January 2011, the following Honeywell and LUX products on Amazon.com have the ability to accept system power:
Honeywell RTH7500D Conventional 7-Day Programmable Thermostat
Honeywell RTH7600D Touchscreen 7-Day Programmable Thermostat)
Lux Products TX1500E-010 Smart Temp Programmable Thermostat
Lux Products TX9000TS-004 Touch Screen 7 Day Programmable Thermostat
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28 of 29 people found the following review helpful By Busy Buddy on September 12, 2010
Item Package Quantity: 1 Verified Purchase
I needed to replace my fifteen year old thermostat for one which was easier to adjust and change settings if needed. I chose Honeywell as they have always gave great life and service. I am using this on a steam heat system only, so I needed to connect only two wires. I did leave the jumper in as directed in the manual. I did power off my heating equipment (very important) we don't want surprises. This thermostat has a large display which can be back-lit simply by quickly pressing one of the control buttons. I only needed to program morning and night settings, you simply skip over the times you don't want to program. When in operation it displays both set temperature and room temperature. I would have to say it is accurate within +/- 1 degree as I compared it with three other thermometers. I installed the batteries before I attached it to the wall base and did all setting and programming ahead of time. The batteries are easy to replace when needed as they fit in a flip out holder from the side, no need to remove any covers or remove the thermostat from it's base.
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24 of 25 people found the following review helpful By Scott K on February 21, 2012
Item Package Quantity: 1 Verified Purchase
The first RTH6450 thermostat delivered to my home would not let me enter the "auto" system mode. It would only switch from "off" to "heat" or to "cool". The programming menu skipped over this function (#12, auto change) during programming of the unit. The thermostat, although marked everywhere as an RTH6450, behaved like an RTH6350. It only showed weekdays and weekends in programming (Along with the "auto" function not working, it also didn't separate Sat and Sun like it was supposed to, per the package and the instructions).
After consulting Honeywell phone support and trying several things, I was told my unit was defective and to send it back to where I bought it.
The auto change feature is the main reason I purchased the RTH6450 instead of the RTH6350. Living in Tucson, AZ it's nice to have this feature in the spring and fall as you may need heat overnite and AC during the afternoon.
Update 2/23/12: I received the replacement unit from Amazon today and it works as advertised. I have weekdays, Sat and Sun to program and the auto function also was there when programming the unit. It would seem that the 1st unit that I received was mis-marked at Honeywell.
I have sent the defective unit back to Amazon using their return paperwork and mailing label that I did online. So...I'm not crazy...the thing was defective, whew.
FYI-I did all the programming of this 2nd unit, including the scheduling, while sitting in a comfy chair. All of the functions and schedules can be set once you put in the 2 AA batteries. Then after I was done, I plugged/pushed it onto the wall mount plate which I had already screwed to the wall and hooked up the wires.
Hope this helps.
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