10 Best Heat Pump Thermostat 2025 in the United States

The Google Nest Learning Thermostat (4th Gen, 2024) in Polished Obsidian offers excellent compatibility, working with most 24V systems including gas, electric, oil, and heat pumps. Its installation is simplified as it typically doesn't require a C wire. This model stands out with its smart features, including integration with Alexa and Google Home, allowing remote control through voice commands or the Google Home app.

The thermostat also comes with the Nest Temperature Sensor, enabling precise temperature management in different rooms and adaptive eco features to enhance energy efficiency by learning and adjusting to outside temperatures. Users can expect significant energy savings, with estimates of up to 12% on heating and 15% on cooling bills. The large, dynamic display and aesthetically pleasing design make it an appealing addition to any home, improving visibility and ease of use.

Some potential downsides include a reliance on Wi-Fi for full functionality and the need to replace the CR2 battery periodically. Additionally, while it offers many advanced features, the initial setup might be a bit daunting for less tech-savvy users. However, for those looking to upgrade to a smart, energy-efficient thermostat, this model is a strong contender.

The Google Nest Thermostat offers a strong level of compatibility, working with most home systems including heating, cooling, zone-controlled, and heat pump systems. However, some systems do require a C wire or an additional power accessory. This thermostat is highly programmable, allowing users to set energy-efficient schedules through the Google Home app. One notable feature is its ability to turn itself down when no one is home, which enhances energy efficiency and helps save on energy bills.

The thermostat also has smart features like remote control via phone, laptop, or tablet and the ability to monitor HVAC systems, sending alerts if something seems off. It integrates well with various smart home platforms and supports voice controls through Google Assistant and Amazon Alexa. The user interface is straightforward, designed for ease of use, though the lack of a lock feature might be a drawback for some users.

Energy efficiency is a key highlight, with the thermostat being ENERGY STAR certified and equipped with a Savings Finder feature to further optimize energy use. The device is lightweight and comes with a glossy finish, and it requires two AAA batteries, which are included. Customer reviews are generally positive, reflecting a 4.1 rating out of 5 stars. It's a solid choice for someone looking to incorporate smart, energy-efficient technology into their home, particularly if they already use other Google or smart home devices.

The Honeywell Home RTH9600WF Smart Color Thermostat is an ENERGY STAR certified device designed to help save energy and provide personalized tips to reduce energy use. This thermostat is compatible with a variety of heating and cooling systems, including forced air, hot water, steam, and heat pumps with electric backup, although it does not work with electric baseboard heating systems. An important point to note is that a C-wire is required for installation, which might be a limitation for some older homes without this wiring.

Programmability is a strong feature of this thermostat, offering flexible options to set schedules or adjust temperatures remotely using a companion app or through smart home systems like Amazon Alexa, Google Assistant, and Microsoft Cortana. The customizable color touchscreen enhances user experience by allowing users to personalize the display and view indoor and outdoor temperature, humidity, and daily weather forecasts.

The requirement for a C-wire power adapter might be a drawback for homeowners with incompatible systems, and the lack of compatibility with line volt heating systems limits its applicability. The smart response technology and various fan control options, including automatic and circulate modes, add to its functionality, making it a versatile choice for managing home climates efficiently. This Honeywell thermostat offers excellent energy efficiency and smart features but requires careful compatibility checks before purchase.