Model # RTH6450D

Internet #202491353

Store SKU #835702

Honeywell 5-1-1 Day Programmable Thermostat with Backlight
0085267496520

Honeywell

5-1-1 Day Programmable Thermostat with Backlight

$76.98 /each

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Product Overview

The Honeywell 5-1-1 Day Programmable Thermostat with Backlight allows you to keep your home at an ideal temperature at any time of day. The programmable function helps you to save money and energy by automatically adjusting the temperature during the day or night based on your settings. The thermostat features a backlit display and easy-to-use control buttons for simple operation.

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Name 5-2 Day Programmable Thermostat with Backlight 5-1-1 Day Programmable Thermostat with Backlight 7-Day Programmable Touchscreen Thermostat Wi-Fi 7 - Day Programmable Thermostat + Free App
Brand Honeywell Honeywell Honeywell Honeywell
Ratings (281) (33) (166) (384)
Features Backlit Display,Battery Operated,Low Battery Indicator,Removable Interface Automatic Heating/Cooling Changeover,Backlit Display,Battery Operated,Low Battery Indicator,Removable Interface Automatic Heating/Cooling Changeover,Backlit Display,Battery Back-Up,Battery Operated,Daylight Savings Time Ready,Filter Monitor,Low Battery Indicator,Removable Interface,Touch Screen Automatic Heating/Cooling Changeover,Backlit Display,Built-in Wi-Fi
Thermostat Program Type 5 - 2 Day 5 - 1 - 1 Day 7 - Day 7 - Day
Color Family Whites Whites Whites Whites
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6 Questions10 Answers

Customer Questions & Answers

5-1-1 Day Programmable Thermostat with Backlight
5-1-1 Day Programmable Thermostat with Backlight

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5 answers

is this therm compatible with 2-stage cooling>

This question is from 5-1-1 Day Programmable Thermostat with Backlight
Asked by
aubie
May 21, 2013
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Answers (5)

Asked by
Lynnfield, MA
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Home Improvement Profile: DIYer
September 22, 2015
Answer: 
Yes it is. The documentation that comes with the thermostat explains how to set this up. It's not evident by reading the box though.
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Asked by
Cumming, GA, USA
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March 4, 2014
Answer: 
yes it is compatible with 2 stage.
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Asked by
Columbus, OH
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October 11, 2013
Answer: 
The directions say it is, but I don't have a 2-stage so I don't know for sure.
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June 4, 2013
Answer: 
The Honeywell RTH6450 is a low voltage thermostat with electrical ratings of 20Vac to 30Vac, at 60 Hz and a maximum load for each terminal of 1A. It is compatible with a variety of heating and cooling systems, including those that have 2 heating and 2 cooling stages, 1 heating and 2 cooling stages and 2 heating and 1 cooling stage.
If you have further questions, we would recommend contacting the Read More
The Honeywell RTH6450 is a low voltage thermostat with electrical ratings of 20Vac to 30Vac, at 60 Hz and a maximum load for each terminal of 1A. It is compatible with a variety of heating and cooling systems, including those that have 2 heating and 2 cooling stages, 1 heating and 2 cooling stages and 2 heating and 1 cooling stage.
If you have further questions, we would recommend contacting the Honeywell Consumer Technical Support line at 1-8--468-1502. Read Less
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June 4, 2013
Answer: 
Hello aubie and thank you for your question.
The Honeywell 5-1-1 Day Programmable can be used if you have a multi-stage compressor in a conventional system (separate furnace and air conditioner). Multi-stage compressor systems that include a heat pump cannot utilize this thermostat; you would need to contact your dealer for the correct thermostat.
Best wishes on your project.
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3 answers

is this thermostat compatible with a 2 stage heating & 2 stage cooling heat pump?

This question is from 5-1-1 Day Programmable Thermostat with Backlight
Asked by
tinker
venice, fl.
February 8, 2013
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Answers (3)

Asked by
Cumming, GA, USA
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March 4, 2014
Answer: 
Yes it is compatible with 2 stage units. There are separate instructions for wiring with different types of systems.
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Asked by
Columbus, OH
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October 11, 2013
Answer: 
The directions say that it is compatible with 2-stage, but I don't have a 2-stage so I don't know.
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February 11, 2013
Answer: 
The RT6450 is only compatible with a single stage heat pump that has 1 stage of auxiliary heat. It would not be compatible with a two stage heat pump.
Thermostats that would be compatible with a two stage heat pump compressor would be the VisionPRO TH8320 and TH8321, the VisionPRO IAQ, the Prestige and Prestige IAQ thermostats.
Complete information on these thermostats would be available at the Read More
The RT6450 is only compatible with a single stage heat pump that has 1 stage of auxiliary heat. It would not be compatible with a two stage heat pump.
Thermostats that would be compatible with a two stage heat pump compressor would be the VisionPRO TH8320 and TH8321, the VisionPRO IAQ, the Prestige and Prestige IAQ thermostats.
Complete information on these thermostats would be available at the following link:
http://yourhome.honeywell.com/home/Products/Thermostats/7-Day-Programmable/SummaryList.htm Read Less
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1 answer

Time slots

This question is from 5-1-1 Day Programmable Thermostat with Backlight
Asked by
Pa
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January 28, 2016
Do you have to program 4 time slots for each day?
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Answer (1)

February 3, 2016
Answer: 
No, you do not have to program all four slots on this thermostat.
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1 answer

does it have a temperature offset feature?

This question is from 5-1-1 Day Programmable Thermostat with Backlight
Asked by
portland oregon
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November 14, 2014
the one i installed it constantly turns on within 1 degree change i had its predecessor at a 3 degrees offset in which i prefer that 3 degree offset setting
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Answer (1)

Asked by
AL
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Home Improvement Profile: DIYer
February 21, 2015
Answer: 
No it does not, it has a smart response. Dont waste your money on it though. The unit cycles the heater on even when the temperature in the house is the same temp as the set point. The unit indicates that on the front left side, set point on the right. My other thermometer shows no change in temp, yet this thing runs the Heater, and then the cool down period completes, time one minute and the thing turns Read More
No it does not, it has a smart response. Dont waste your money on it though. The unit cycles the heater on even when the temperature in the house is the same temp as the set point. The unit indicates that on the front left side, set point on the right. My other thermometer shows no change in temp, yet this thing runs the Heater, and then the cool down period completes, time one minute and the thing turns right back on! Honeywell tech support claims this is normal operation that temperature varies +/- 4 degrees (ok so what - then the display should prove that out by displaying that, if my temperature does not change the unit should not cycle. I have been through all the settings and Honeywell said it is correctly set up. Now does that sound like it should run when the temperature is correct. Read Less
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Customer Reviews

5-1-1 Day Programmable Thermostat with Backlight is rated 4.1 out of 5 by 33.
Rated 5 out of 5 by from This thermostat was easy to install. Setup was simple and user friendly. I purchased and installe... This thermostat was easy to install. Setup was simple and user friendly. I purchased and installed it for my son. He has a very large house with four boys. They are gone a lot during the week with he and his wife working and all boys in school. It was simple to set week days and weekend days when they're home. I know this will save on their heating bill, too, as he never remembered to turn the furnace down when he left for work. I've had a similar one by Honeywell for years and it definitely saves on my heating bill. And if he's home on day temp is set low it's easy to temporarily override the setting and turn up the heat.
Date published: 2017-01-03
Rated 5 out of 5 by from As Advertised: Easy Install Simple install with our furnace/air system. The install instructions were simple, concise, and yet detailed enough to make install a breeze. It powered right up and functioned perfectly. One piece of advice. For securing the thermostat wires to the terminals on the unit you need a very tiny flat head screwdriver. I happened to have a set of precision screw drivers, but if I hadn't it would have meant another trip to the store. It also does NOT come with the 2-AA batteries required for operation, so make sure you have those on hand. I thought the batteries were only for memory in case the power goes out, but the furnace cable does not power this unit.
Date published: 2011-07-23
Rated 3 out of 5 by from Easy to use and install but tried 3 of them and all of them were 5 degrees below the correct temp... Easy to use and install but tried 3 of them and all of them were 5 degrees below the correct temperature. Customer service said they could not be recalibrated and told us to return them to the store.
Date published: 2016-10-24
Rated 5 out of 5 by from Great thermostat It was easy to install, and easy to program. You can always trust Honeywell.
Date published: 2016-09-09
Rated 4 out of 5 by from works on both heat pump and conventional installs works on both heat pump and conventional installs
Date published: 2016-12-29
Rated 4 out of 5 by from good thermostat, programming a challenge The thermostat works just fine. We have a lot of Honeywells throughout our facilities. This particular one was purchased because of the auto heat/cool. Initially the auto feature was not appearing for heat/cool. You need to go into the advanced setup menu to access feature 12, then set it to auto switchover. The manual does explain this in the advanced setup section. It is very easy to do, but the thermostat did not come with this feature already enabled. That was probably a poor, but necessary choice on Honeywell's part. I would purchase this product again and recommend it to others. Just be prepared to do some more programming than you may have been used to.
Date published: 2014-05-16
Rated 5 out of 5 by from HVAC Thermostat I bought this for my parents house, their old thermostat was blown by a lightning strike to the house. Simple to wire, just match the wire colors and connect. The new thermostat is easy for them to use. They love the comfort improvement over the old thermostat that was also electronic. This thermostat holds the house within 1 degree and so far they have had no need to bump it up or down. They say the house is more comfortable than it has ever been.
Date published: 2012-07-12
Rated 5 out of 5 by from Great thermostat Took no time at all to wire this thermostat up. Programing it was easy too.
Date published: 2012-03-06
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