Skip to main content
Honeywell Home T4 Pro

The Honeywell Home T4 Pro has been a staple in HVAC installs, providing simplicity and reliability for countless professionals. With straightforward programming and a clean design, it became the go-to choice for basic heating and cooling setups. But as HVAC systems evolve, so do the tools we use to control them.

The T4 Pro is being phased out and replaced by the new Honeywell Home FocusPro series. The Honeywell Home FocusPro lineup of thermostats is designed to meet the demands of today’s homes with improved functionality, ease of use, and more options. Here’s a deeper look at the new models and why they’re a step forward.

Why the T4 Pro Is Being Replaced

The T4 Pro has earned its reputation for simplicity and reliability in the field. It’s been easy to install, provided just the right amount of programmable functionality, and worked with both conventional and heat pump systems. However, as homeowners have become more accustomed to larger screens, faster installs, and better overall system compatibility, Honeywell Home needed to update their offerings.

The FocusPro models build on the T4 Pro’s foundation but take things further by incorporating larger displays, more flexibility in terms of programmability, and additional models that cater to both simple and advanced system needs.

Meet the New FocusPro Thermostats

Honeywell Home’s new FocusPro thermostats come in several variants: N100, P200, and S200. Let’s break them down:

A non-programmable model, perfect for conventional heating and cooling systems where advanced scheduling isn’t necessary. It offers simplicity and ease of use, with a large, easy-to-read display and straightforward operation.

For more complex systems, this model supports up to 3 stages of heating and 2 stages of cooling in heat pump configurations, or 2 stages of heating and cooling for conventional systems. It’s non-programmable but gives more flexibility for multi-stage systems.

A programmable option for simple single-stage conventional or heat pump systems. It brings easy-to-understand programming with a large screen and intuitive menu, making installation and daily operation smooth.

A model that expands the capabilities for multi-stage systems. Whether it’s 3 stages of heating and 2 stages of cooling for heat pumps or 2 stages of heating and cooling for conventional systems, it provides full programmability with a larger, more user-friendly interface.

A smart, WiFi-enabled option with app control through Resideo. Ideal for small systems and those who want the flexibility of controlling their thermostat remotely via mobile devices.

This model is designed for larger, multi-stage systems, offering WiFi connectivity and full programmability. Homeowners can control it remotely via the Resideo app, providing a simple way to keep track of energy consumption and adjust settings from anywhere.

Key Differences: T4 Pro vs. FocusPro

Display Size and User Experience:

One of the first noticeable differences is the larger, more intuitive display on the FocusPro models. The T4 Pro had a more basic screen, while the FocusPro models offer a much clearer and easier-to-read interface, making programming and daily use faster and less frustrating, especially in dimly lit spaces.

Programmability Options:

While the T4 Pro offered basic 5-1-1 programming for temperature setbacks, the FocusPro thermostats bring a wider range of choices. The new P200 and S200 models allow for full weekly scheduling with 7-day programming, making it easier to optimize energy usage for clients without manually adjusting the temperature every day. For non-programmable needs, the N100 series simplifies the process with fewer settings but greater reliability.

Energy Efficiency and Smart Features:

The FocusPro’s WiFi-enabled models (S200) go beyond simple programmability. They allow homeowners to control their system remotely, promising better energy savings by adjusting settings even when they’re away. The ability to monitor and adjust settings through a smartphone or tablet gives both contractors and customers greater flexibility to reduce energy consumption.

Multi-Stage System Compatibility:

The FocusPro thermostats also offer more options for complex systems. Whether it’s a multi-stage heat pump or a dual-fuel conventional system, the FocusPro can handle the added complexity. The T4 Pro, while versatile, didn’t offer as much room for growth when it came to high-performance systems with multiple stages of heating or cooling.

Simplicity vs. Smart Features:

While the T4 Pro was simple and straightforward, FocusPro thermostats cover a broader spectrum. They offer a mix of non-programmable and programmable models, along with smart WiFi functionality for tech-savvy homeowners. The focus is still on ease of use, but now with more options for energy management and remote control.

Final Word: T4 Pro’s Legacy, FocusPro’s Future

The Honeywell Home T4 Pro leaves a strong legacy, providing simple solutions for straightforward systems. But as HVAC technology advances, so too must the tools we use. The FocusPro series picks up where the T4 Pro leaves off, offering more flexibility, better energy management, and greater compatibility with modern systems.

The new FocusPro models are ideal for contractors looking to keep up with evolving customer needs. Whether you’re looking for a simple upgrade or a smart solution for advanced systems, the FocusPro family offers the perfect thermostat for any job.

Need a replacement for the T4 Pro? Browse the new FocusPro thermostats at SupplyHouse and choose the right model for your next install.

No matter the project, having the right thermostat makes all the difference. Honeywell Home’s FocusPro lineup delivers straightforward solutions built for today’s heating and cooling demands, without overcomplicating the job. As the T4 Pro era winds down, FocusPro stands ready to take its place — a smart evolution for a trade that never stops moving forward.