10 Best Space Heaters 2026 in the United States

The Dyson PureHot + Cool is a versatile device combining a space heater, air purifier, and fan in one unit. It uses a powerful HEPA filter that captures 99.97% of tiny particles like allergens, dust, and smoke, making it a good choice if you want cleaner air along with heating. The heater can warm up rooms up to around 800 square feet and projects heat evenly thanks to its Air Multiplier technology. It also has a real-time pollution monitor and can be controlled via an app, which adds convenience and precise temperature control.

Safety features include automatic detection of air quality and a sealed filter system. Dyson claims it operates quietly, especially in purifier mode, which is nice for bedrooms or offices. The unit weighs about 12 pounds and stands around 30 inches tall, so it’s somewhat portable but not very compact. The main downside is that its price and complexity might be more than what a simple space heater user needs, especially if air purification isn't a priority. Also, since this model is refurbished, some users may prefer a brand-new unit for peace of mind.

This product is well-suited for those who want a combination of clean air and heating with smart features, rather than just a straightforward heater.

The Rinnai EX38DTWP is a direct vent wall-mounted propane heater designed to efficiently warm indoor spaces up to about 1,600 square feet. With a heating capacity of 36,500 BTU (around 10,700 watts), it provides strong heat output suitable for medium to large rooms like bedrooms or home offices. The heater features a programmable thermostat with smart technology, allowing you to set and control temperatures conveniently, even remotely if integrated with Wi-Fi.

Safety is a key highlight: it has a cool-to-the-touch cabinet and built-in self-diagnostic electronics, making it a safe option for homes with children. Its energy efficiency is notable, as it uses advanced modulating technology to adjust heat output precisely to your needs, helping reduce fuel consumption and save on energy costs. Noise levels are minimal, making it a quiet heating solution that won’t disturb your daily activities or sleep.

Being a wall-mounted unit fueled by propane, it’s not portable and requires professional installation and a gas connection, which can limit flexibility in placement compared to electric portable heaters. Also, at over 100 pounds and sizable dimensions, it demands dedicated wall space and sturdy mounting. This heater performs especially well if you want reliable, efficient, and safe heating integrated into your home infrastructure, particularly if you prefer gas over electric heating. However, if you need something lightweight or easy to move from room to room, this model may not be the best fit.

The Rinnai EX38DTP is a propane-powered, direct vent wall heater designed primarily for indoor use. With a strong heating capacity of 36,500 BTUs, it can comfortably warm spaces up to about 1,600 square feet, making it suitable for bedrooms, home offices, or garages. The heater uses forced-air heating, providing fast and consistent warmth without cold spots thanks to its advanced modulating technology. It features a programmable thermostat that can be controlled via Wi-Fi, allowing you to customize temperatures easily for your comfort and convenience.

Safety is well addressed, with a cool-to-the-touch cabinet and built-in self-diagnostic electronics that help ensure safe operation, which is a plus for families with children. The unit is designed to be energy efficient by adjusting fuel use precisely based on heating needs, helping reduce propane consumption and save on energy bills. It operates quietly, which is ideal for living areas where low noise is preferred. However, as a wall-mounted unit weighing 108 pounds, it isn’t portable and requires professional installation, so it’s best suited for those wanting a permanent heating solution rather than a movable heater.

Its compact, beige design fits well in modern homes without taking up floor space. While it excels in efficiency and safety, it’s important to note it runs on propane and needs venting, so it might not be the best choice if you’re looking for an electric or portable option. For those seeking a reliable, efficient, and quiet wall-mounted propane heater with smart features, the Rinnai EX38DTP is an excellent candidate.