Are There Any Batteries In The Honeywell VisionPro 8000 TH8321WF1001

Best digital thermostat that requires no batteries in my opinion

I love this: the Honeywell TH8321WF1001 doesn’t use batteries or even have a place to install them. Read on, and I will explain how VisionPro 8000 can operate without batteries.

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As a licensed HVAC contractor, I have been installing thermostats since 1977, and the VisionPro 8000 is my favorite.

You wouldn’t believe how many service calls I’ve run because my customers’ batteries in their thermostats were dead.

Most digital thermostats have batteries to keep the screen active during a power outage. But why? If the power is out, your furnace will not operate without electrical power from your utility.

Many of today’s digital thermostats can remember settings, including daily schedules when there is a power failure. So, I always wonder why we need batteries when the system powers the control and the circuit board in the control remembers the settings.

If you’d like to stop buying thermostat batteries, rest easy if you already own or want to buy a Honeywell with a large touchscreen display. The TH8321WF1001 Vision Pro 8000 requires no batteries, so you won’t have to worry about them dying.

Where To Buy The Honeywell TH8321WF1001 Vision Pro 8000 Thermostat

The Wi-Fi Visionpro 8000 is available for residential or commercial use.

Some models of the Visionpro 8000 require batteries, so make sure you order by the model number and specific name of Visionpro 8000 TH8321WF1001.

Warranty has never been an issue. You must contact the supplier you buy them from to handle the warranty.

Most of our Honeywell thermostats were purchased in bulk through Amazon, and view pricing changes occasionally. You can find current pricing here.

                                                  No batteries in the Honeywell TH8321WF1001

Because the Honeywell 8000 Vision Pro TH8321WF1001 uses no batteries, you have one less thing on your to-do list every year.

In addition, you no longer need to worry about batteries leaking and corroding the contacts inside the thermostat. For that reason alone, buying a Honeywell VisionPro 8000 thermostat would be a good idea.

But some of this still didn’t make sense to me, so I had to call Honeywell. Tech support said that thermostats with batteries will hold the memory for only a few hours after a power outage. Still, with batteries, thermostats will have the previous setting much longer.

The Honeywell tech didn’t sound convincing enough, so I called again and got another tech support person.

He gave me a different answer, which frustrated me so much that I couldn’t even remember what he said. Honeywell tech support is generally very helpful.

If you want to call Honeywell Tech Support, you can reach them at 800-468-1502. They have a line for homeowners and professional HVAC technicians with thermostat questions, and they can answer almost any question about the VisionPro 8000.

Just don’t ask them why a thermostat needs batteries.

The Honeywell TH8321WF1001 Has Intuitive Programming For Easier Thermostat Setup

Because of intuitive programming, if you or your favorite service technician installs a Honeywell TH8321WF1001, you can throw away the installation manual (humor me).

Once you power up the Wi-Fi Visionpro 8000, the large touchscreen display’s intuitive programming walks you through the installer setup process.

Connectivity to the internet is complete with the Total Connect Comfort App, which is also how you register your new Wi-Fi Visionpro 8000.

You will notice the weather report on the large touchscreen display once you connect to the internet and select all your comfort settings.

Using an existing Wi-Fi network, you can read the temperature and humidity, which are part of the total connect comfort services.

Is The Honeywell TH8321WF1001 A Programmable Thermostat?

The Honeywell TH8321wf1001 is both a programmable thermostat or a non programmable thermostat.

By setting up the TH8321wf1001 as a programmable thermostat, you get the advantage of annual energy savings.

The programmable thermostat automatically sets back the temperature while you sleep or are away regularly, such as at work or school. The setback schedule can achieve annual energy savings.

The annual energy savings can vary by lifestyle and equipment or unit that the programmable thermostat has control of.

Honeywell Total Connect Comfort Services Allow For Remote Comfort Control.

We built a remote cabin in 2004 and have actively rented it as an Airbnb. I installed an earlier version of the Wi-Fi Visionpro. We have monitored the temperature remotely anytime tenants leave or when the weather threatens to freeze pipes.

The Honeywell Total Connect, a comfort services app, can access remote comfort control from your smartphone. You can find them at

Even The Honeywell Wi-Fi Visionpro 8000 Thermostat Has Its Defects

The town I worked in and around for 2023 has over 200 Vision Pro 8000 Wi-Fi thermostats. They operate flawlessly except for one small error.

About three of the subbases had a short circuit from the factory. Shorted means the fan ran before I installed the thermostat on the subbase.

                                   We bought the Honeywell TH8321WF1001 in bulk from Amazon

As soon as I powered up the subbase and before I mounted the thermostat on it, the fan came on. Using an ohm meter, I found a short between R and G, causing the fan to run continuously.

Be sure you see the WF for Wi-Fi in the middle of the model number.

Chad Peterson

Chad Peterson is a veteran of the HVAC industry since 1977. "I like to explain heating and air conditioning problems in a way the average home owner can understand. "

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