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 T5 7-Day Programmable Thermostat Wi-Fi 7 - Day Programmable Thermostat + Free App
Brand Honeywell Honeywell Honeywell Honeywell
Ratings (310) (35) (3) (402)
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,Backlit Display,Backlit Display,Battery Operated,Daylight Savings Time Ready,Filter Monitor,Low Battery Indicator,Vacation Mode 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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Customer Questions & Answers

is this therm compatible with 2-stage cooling>

Asked by: Anonymous
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.
Answered by: Cmin7b5
Date published: 2015-09-23

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

Asked by: Anonymous
Yes it is compatible with 2 stage units. There are separate instructions for wiring with different types of systems.
Answered by: mcnekev
Date published: 2015-11-07

does it have a temperature offset feature?

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
Asked by: biggs
All of Honeywell’s digital thermostats are calibrated to hold temperature within one degree of your thermostat temperature set point to maintain an even room temperature. This is known as the thermostat’s “Differential” and because of this; the thermostat may seem to cycle more often than older thermostats that had a wider room temperature swing or a wider 2 degree differential.
Answered by: Honeywell Support
Date published: 2017-02-15

Time slots

Do you have to program 4 time slots for each day?
Asked by: Grandpop
No, you do not have to program all four slots on this thermostat.
Answered by: CommunityAnswer
Date published: 2016-02-04
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Customer Reviews

5-1-1 Day Programmable Thermostat with Backlight is rated 4.0 out of 5 by 35.
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 1 out of 5 by from Honeywell 5-1-1 fail. The factory program doesn't work right. My furnace runs constantly with no rhyme or reason when in program mode. It works fine when setting the temp manually and using the "hold" button. Piece of expensive junk.
Date published: 2017-03-01
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 Easy to install, works great, holds temperature, easy to program. Great product at a great price.... Easy to install, works great, holds temperature, easy to program. Great product at a great price. Home Depot met the Amazon price. Set it and forget it.
Date published: 2017-03-07
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
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