Honeywell TH8110R1008 vs Honeywell TH8321WF1001: Wired or Wi-Fi Control

The Honeywell TH8110R1008 and the Honeywell TH8321WF1001 are both VisionPRO 8000 touchscreen thermostats, and the choice between them comes down to one thing: how the thermostat talks to the rest of the house. The TH8110R1008 relies on Honeywell’s RedLINK wireless accessories for remote control, while the TH8321WF1001 has Wi-Fi built in and handles multi-stage equipment. The overview below settles the pick in under a minute; the rest of the article explains the differences dimension by dimension.

The Picks at a Glance

Product	Key Spec	Best Use	Price Tier
Honeywell TH8110R1008 VisionPRO 8000	Single stage, RedLINK Technology	Simple single-stage systems that want wireless accessories instead of a network	Mid-range
Honeywell TH8321WF1001 Vision Pro 8000	Wi-Fi, up to 3 heat / 2 cool stages	Homes with multi-stage heating and cooling that want app control	Mid-range

Both sit in the same price neighborhood, so the decision is about capability and wiring, not budget. The TH8110R1008 suits a straightforward single-stage system where a RedLINK accessory handles remote access. The TH8321WF1001 suits a house with staged equipment and a Wi-Fi network the thermostat can join.

Honeywell TH8110R1008 VisionPRO 8000

Type: Touchscreen thermostat
Stage Support: Single stage
Wireless: RedLINK Technology
Display: Touch screen
Series: VisionPRO 8000

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The TH8110R1008 is the simpler of the two by design. It controls a single-stage system, which covers the most common furnace-and-AC setups in older homes and straightforward replacements. The touchscreen interface replaces a dial or button thermostat without asking the installer to rewire for stages the equipment does not have.

RedLINK is the feature that separates it from a plain programmable unit. RedLINK is Honeywell’s wireless protocol for accessories such as remote sensors and equipment interface modules, so the thermostat can be extended without pulling new wire through walls. Buyers who already own RedLINK gear get a natural fit here.

Trade-off: The lack of built-in Wi-Fi means app control depends on adding a RedLINK accessory, so the sticker price is not the full cost of a connected setup.

Honeywell TH8321WF1001 Vision Pro 8000

Type: Touchscreen thermostat
Connectivity: Wi-Fi
Stage Support: Up to 3 heat / 2 cool
Display: Touch screen
Series: Vision Pro 8000

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The TH8321WF1001 is the more capable unit on paper. Support for up to three heating stages and two cooling stages means it can run heat pumps with auxiliary heat, two-stage furnaces and similar equipment that a single-stage thermostat cannot manage. That flexibility is why it moves in larger numbers than its sibling.

Wi-Fi is built in rather than bolted on, so remote access works out of the box once the thermostat joins the home network. For a household that wants to adjust setpoints from a phone or check the system while away, that removes the accessory purchase the TH8110R1008 requires. The touchscreen and VisionPRO 8000 platform carry over, so the day-to-day interface is familiar.

Trade-off: The extra stage support and Wi-Fi only pay off if the HVAC equipment and the home network can use them; on a basic single-stage system the added capability goes unused.

Side-by-Side Comparison

Dimension	TH8110R1008	TH8321WF1001
Series	VisionPRO 8000	Vision Pro 8000
Control Type	Touch screen	Touch screen
Stage Support	Single stage	Up to 3 heat / 2 cool
Built-in Wi-Fi	No	Yes
Wireless Ecosystem	RedLINK Technology	Wi-Fi
Remote Access	Via RedLINK accessories	Built in
Best Fit	Simple single-stage systems	Multi-stage systems with network access
Price Tier	Mid-range	Mid-range

The table reads cleanly across three fault lines. The first is stage support: single stage on the TH8110R1008 against up to three heat and two cool stages on the TH8321WF1001. Any home with a heat pump, auxiliary heat or a two-stage furnace needs the second column, and no amount of accessory shopping changes that.

The second is connectivity. Wi-Fi is native to the TH8321WF1001 and absent from the TH8110R1008, which reaches the network only through RedLINK accessories. A buyer who wants app control without extra hardware should weight this heavily.

The third is simplicity. The TH8110R1008 asks less of the installation and the household, and for a single-stage system with no interest in remote access it does the job without paying for capability that sits idle. Both units share the VisionPRO 8000 touchscreen platform, so the interface is not a differentiator.

Which Should You Buy?

Choose the Honeywell TH8110R1008 if the system is single stage and the plan is to extend control through RedLINK accessories rather than a home network. It suits replacements where the wiring is basic and the household does not need app access on day one.

Choose the Honeywell TH8321WF1001 if the equipment has multiple heating or cooling stages, or if built-in Wi-Fi is a requirement. It covers heat pumps with auxiliary heat and multi-stage furnaces, and it connects without a separate accessory purchase.

Neither is the wrong answer in the abstract; the wrong answer is the TH8110R1008 on a two-stage heat pump, or the TH8321WF1001 on a single-stage system where the extra stages and Wi-Fi never get used.

FAQ

1. What is the main difference between the Honeywell TH8110R1008 and the Honeywell TH8321WF1001?
   The TH8110R1008 is a single-stage thermostat with RedLINK Technology for wireless accessories. The TH8321WF1001 has built-in Wi-Fi and supports up to three heating and two cooling stages.

2. Does the Honeywell TH8110R1008 have Wi-Fi?
   No. It uses RedLINK Technology, Honeywell’s wireless protocol for accessories, so remote access depends on adding compatible RedLINK equipment rather than joining a home network directly.

3. Can the Honeywell TH8321WF1001 run a heat pump with auxiliary heat?
   Yes. Its support for up to three heating stages and two cooling stages covers heat pump systems with auxiliary or emergency heat, along with multi-stage furnaces and air conditioners.

4. Which thermostat suits a basic single-stage furnace and AC?
   The TH8110R1008 is the natural fit. It controls single-stage equipment directly and does not charge for stage support the system cannot use.

5. Is the Honeywell TH8321WF1001 worth it without multi-stage equipment?
   Only if built-in Wi-Fi matters more than the stage support. On a single-stage system the extra stages go unused, and the case for the upgrade rests entirely on native network control.

6. Do both thermostats use the same touchscreen interface?
   Both are VisionPRO 8000 touchscreen models, so the display and interaction style carry over. The difference sits in stage support and connectivity, not in how the screen works.

7. Which one is the better fit for a rental property?
   The TH8110R1008 keeps the setup simple and avoids network dependence. The TH8321WF1001 makes more sense if the landlord wants remote monitoring through Wi-Fi.

Bottom Line

The Honeywell TH8321WF1001 is the better pick for most buyers because built-in Wi-Fi and support for up to three heat and two cool stages cover the equipment people actually have, including heat pumps and multi-stage furnaces. The Honeywell TH8321WF1001 is the one to check the price on first; the TH8110R1008 remains the right call only for a single-stage system that will never need network control.