Honeywell STF732 vs. STF73F: What’s the Real Difference?
If you’re shopping for a reliable thermostat, you’ve likely stumbled upon Honeywell’s STF732 and STF73F models. But what is the difference between Honeywell STF732 and Honeywell STF73F? At first glance, they look nearly identical—same sleek design, trusted brand reputation, and focus on temperature control. However, subtle variations in features and compatibility set them apart. Let’s break it down in plain terms.
The Basics: Honeywell STF732 vs. STF73F
Both models are non-programmable thermostats designed for simple, user-friendly operation:
1. Voltage Compatibility
- STF732: Works with low-voltage systems (24V), making it compatible with most modern HVAC setups like furnaces, boilers, or heat pumps.
- STF73F: Designed for line-voltage systems (120V/240V), often used with electric baseboard heaters or radiant heating systems.
Pro Tip: Check your system’s voltage requirements before buying. Mismatching voltage can damage your thermostat or HVAC unit!
2. Wiring Setup
The STF73F’s line-voltage design means it handles heavier electrical loads, requiring thicker wires and a different installation process. The STF732 uses standard low-voltage wiring, which is simpler for DIYers.
3. Intended Use Cases
- STF732: Perfect for central heating/cooling systems in homes with gas, oil, or heat pump setups.
- STF73F: Tailored for electric heating systems, like baseboards or wall-mounted heaters common in apartments or smaller spaces.
Which One Should You Choose?
- Pick the STF732 if you have a traditional HVAC system with a furnace or central AC.
- Go for the STF73F if you’re managing electric heaters or radiant heat.
FAQs
Q: Can I swap the STF732 for the STF73F?
A: No—they’re designed for different systems. Swapping them could risk electrical issues.
Q: Do these thermostats support smart features?
A: Nope! Both are basic, manual models. For Wi-Fi controls, check Honeywell’s programmable lineup.
Final Thoughts
While the Honeywell STF732 and STF73F look similar, their voltage specs and use cases are worlds apart.