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Honeywell

Model RTH6450D

Internet #202491353

Store SKU #835702

5-1-1 Day Programmable Thermostat with Backlight

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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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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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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

Rated 4.1 out of 5 by 29 reviewers.
Rated 4.0 out of 5.0 by 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. May 16, 2014
Rated 4.0 out of 5.0 by Good purchase It seems to work fine, however a little over priced. Should have better instructions included with it. March 22, 2016
Rated 5.0 out of 5.0 by Easy to install & use Easy to install. Had a questions, used the enclosed number and got help immediately so I could finish the install. Works great. Wish I had done it years ago. March 5, 2016
Rated 5.0 out of 5.0 by great product, easy to set up We think that this will save us money in addition to increasing the comfort level of the house. It's so nice waking up in a warm house. Very easy to program, even for a non-tech type person. March 1, 2016
Rated 4.0 out of 5.0 by Simple reliable thermostat I've purchased several of these over the years for different installations including residential and commercial buildings. These are simple to setup and are very reliable, frugal with their battery consumption, and don't require any additional wiring (no "C" wire) like the popular WiFi thermostats do. That said, this thermostat is drastically over-priced, and so are all of the digital thermostats these days. I say this with confidence because the cost to manufacture one of these is down to less than $5, so I find it obnoxious that these are priced over $60. However, this is the cheapest thermostat with auto-changeover available at any home center, so it will have to do. September 22, 2015
Rated 5.0 out of 5.0 by Good thermostat for the price - not feature rich but functional Easy to install - instructions are well written. I didn't want to pay a fortune for features I would never use, for me having a thermostat connected to a wireless network is not important so this one had just enough features to provide for program settings for the days and nights and was not overly complicated to use. November 3, 2015
Rated 4.0 out of 5.0 by Good Thermostat I literally had to quickly replace a thermostat that just stopped working. I chose this Honeywell and installed it. It works well and does the job. What else can I say? July 21, 2015
Rated 5.0 out of 5.0 by A very dependable product. It's easy to set and maintane the temprature you want. I was amazed how easy it was to install. Works well. August 25, 2015
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