Comparison: Best Space Heater For 800 Sq Ft (Updated | Dec 16th)
Looking for the perfect way to conquer those stubborn cold spots in your large living area? An 800-square-foot room presents a unique heating challenge, demanding more power than your average plug-in heater. Finding a unit that can effectively warm your space without skyrocketing your energy bill can feel like navigating a black hole. But don’t bundle up just yet! We’ve done the heavy lifting, testing the top contenders to find the most powerful, efficient, and reliable space heaters that can transform your cavernous room into a cozy sanctuary all winter long.
Editor’s Choice
Best for a specific purpose
- Best for infrared powerhouse: Dr Infrared Heater Portable Space Heater
- Best for flame effect heater: COSTWAY Electric Space Heater for Indoor Use
- Best for whisper-quiet heating: Dreo Space Heater for Large Room
- Best for garage heating champion: Newair 5600W Portable Electric Garage Heater – Heats Up to 600 sq. ft. with 6-Foot Cord Wrap and Carrying Handle
- Best for 3d flame decor heater: Uthfy 32″ Space Heater for Large Room
- Best for energy-saving panel: Ballu Convection Panel Heater
- Best for compact space saver: BLACK+DECKER Portable Heater for Rooms up to 161 Sq. Ft.
- Best for copper infrared tech: EdenPURE Classic CopperPLUS Infrared Heater — 1500 W Energy-Efficient Zone Heater for Large Rooms up to 1000 sq ft — Quiet Operation
- Best for 360° radiator heater: Landeagle Space Heaters for Large Room
- Best for smart eco heating: DUOMIY Space Heater for Indoor Use
Product Comparison: Best Space Heater For 800 Sq Ft
Infrared Powerhouse
Dr Infrared Heater Portable Space Heater, Original, 1500-Watt, Cherry (Pack of 1)
DR. INFRARED HEATER
- Can heat up a large room with Auto Energy Saving Model With High and Low Feature. Tip-over protection and Overheat protection.Heat Up for a large room – Dual Heating System: Infrared Quartz tube + PTC for 60% more heat than others. Rated around 5200 BTU.
- Dual Heating Systems featuring infrared quartz tube + PTC with 12-Hour automatic shut-off timer. Amperage: 12.5 Amps
- IR Remote Control, High Pressure Low Noise Blower with Noise level 39 dB super quiet. Heating can cover for a large room.
- Electronic Thermostat: range 50 to 85 degrees. Caster Wheels and Lifetime Filter
- Weights 24 lbs and uses 12.5 Amps of Power. 1500 Watts. Power Cord is 72-inch-long (6 Feet)
Flame Effect Heater
COSTWAY Electric Space Heater for Indoor Use, 1500W PTC Ceramic Tower Heater w/Remote Control, 3D Realistic Flame, 80° Oscillating, Portable Heater for Living Room Bedroom Office Large Room
COSTWAY
- 1500W Heater with Thermostat: This 1500W space heater features advanced PTC ceramic heating elements with fans that achieves efficient and fast heating in 3s and reaches 250 sq.ft heating area. Besides, the built-in thermostat keeps the room temperature at the temperature you choose for energy-saving. The temperature can be adjusted from 62℉ to 95℉.
- 3D Realistic Flame Effect: Designed with dancing flame and lifelike logs, the 3D vivid flame effect makes this space heater a perfect decoration to add a cozy and warm ambiance to your room. And the flame can be operated without heating which endow this heater has 3 ways to use (heat and flame, only heat as well as only flame) for your preference.
- 3 Modes & 80° Oscillation: This tower space heater is suitable for both summer and winter because it boasts 1500W high heating, 800W low heating and a cooling fan. No matter which mode you choose, the 80° wide oscillation will deliver a cozy breeze throughout the room. And the 12H timer and low noise operation take the comfort to the next level.
- Multiple Safe Protections: In addition to the V0 flame retardant material, this tower heater with CSA certification comes with tip-over protection that will automatically shut off when dumping over 30° and overheat protection which means it will auto shutdown when the temperature exceeds 167℉. Moreover, the stable base keeps this heater balanced.
- Manual and Remote Control: Apart from the simple LCD touch panel, this electric space heater includes a full-featured remote control with 20 ft effective control distance which makes all functions available at your fingertips. Please note that it requires 2 x AAA batteries (not included). The handle on the back not only allows you to move the heater easily, but also stores the remote control in case you can’t find it.
Whisper-Quiet Heating
Dreo Space Heater for Large Room, 23 Inch Electric Heaters for Indoor Use, 8 Safe Protection Tower, 70° Oscillation, PTC Ceramic with Thermostat and Remote, Quiet, 12H Timer, Bedroom, Office
Dreo
- Twice the heat power: With dual DC motors, this DREO heater doubles airflow at 10ft/s, heats up in 2s, plus a 25% larger heating plate that efficiently warms rooms up to 250 sq.ft.
- Worry-free warmth: With child-lock, safety plug, overheat, tip-over protection and cool-touch housing, this ETL-listed electric heater provides safe, efficient warmth indoors.
- Energy-efficient heating: Save up to 40% on energy with ECO mode, along with precise temp control (41-95°F) in 1°F increments, 3 heat levels, and a fan mode for optimal comfort.
- Even heat distribution: Enjoy a cozy room with 70° wide oscillating, ensuring heat spreads to every corner for consistent warmth, making it perfect for large spaces on chilly days.
- Whisper-quiet comfort: At a mere 34db, this heater brings warmth to your large room without noise disruption. The 12hr timer offers convenience for effortless heating all day long.
Garage Heating Champion
Newair 5600W Portable Electric Garage Heater – Heats Up to 600 sq. ft. with 6-Foot Cord Wrap and Carrying Handle, Space Heater Ideal for Garage, Bedroom, Dorm, and Office
NewAir
- [POWERFUL FAN FORCED HEATING] – With 5,600 watts of heating power, this electric garage heater packs a punch. It’s strong enough to warm up to 600 square feet—perfect for a two-car garage or a 24×24 workshop or shed.
- [RUGGED EXTERIOR BUILT TO LAST] – Black powder coated finish protects against scratches and scuffs, making this sturdy steel-bodied heater perfect for garages, workshops and light industrial environments. Alarm-No
- [THERMOSTAT & AUTO-FAN TEMP CONTROL] – Set the temperature you want. Once the space has reached the ideal temperature, the fan will automatically kick-in as needed to keep your workshop warm. It’s that easy to get the heated working environment you need in winter.
- [PORTABILITY FEATURES FOR FAR-RANGING HEAT] – Take advantage of 2 portable features: the cord wrap and carry handle. Together they make it easy for you to position or move your heater to the most ideal place in your garage, workshop, or shed.
- [SAFETY FEATURES FOR PEACE OF MIND] – This UL-certified heater has an automatic shut-off function that prevents overheating. The outer construction stays cool after use to ensure safety for you and your space.
3D Flame Decor Heater
Uthfy 32″ Space Heater for Large Room, 1500W Electric Heater for Indoor Use with 24H Timer & 3D Flame, 120° Oscillation, ECO Mode, Child Lock, Remote, Portable Tower Heater for Room, Bedroom Office
Uthfy
- 🔥Rapid, Wide-Coverage Heating: Boasting a 32-inch height and 120° oscillating design, this space heater distributes warm air across large spaces—ideal for 400 Sq.ft rooms! Powered by PTC ceramic heating technology, the 1500W heater delivers instant warmth in just 1 seconds, quickly reaching your desired temperature without lengthy waits
- 🔥Stunning 3D Flame Effect: More than a heater—this 1500W electric heater doubles as a decorative centerpiece! Its lifelike 3D dancing flames create a cozy, inviting ambiance, blending functional heating with visual comfort that elevates any room decor, multifunctional gift for Christmas, or other festivals
- 🔥Energy-Saving and Cost-Effective: Customize your heating with 2 power modes (1500W high/1000W low) and a precise thermostat (50°F-99°F, 1°F increments). Instead of wasting energy on central heating, heat only the spaces you use—plus, the thermostat maintains a consistent temperature to slash electric bills
- 🔥Dual Control Modes and Portable Design: You can operate effortlessly via the top LED control panel or included remote—adjust power, heating modes, oscillation, temperature, 24-hour timer, flame settings, and screen on/off from your sofa or bed. The 24-hour timer and quiet 25 dB performance guarantees undisturbed comfort in sleeping,working or relaxing. Featuring a hidden handle and lightweight build, this portable heater is perfect for home, office, or any space needing targeted warmth
- 🔥Engineered for Safety: Designed for families with kids and pets, this room heater includes V0-grade flame-retardant materials, an enhanced safety plug, overheat protection, and tip-over shutoff. For extended durability, the indoor heater features a 30-second post-shutdown cooling to fully dissipate heat from the heating element
Energy-Saving Panel
Ballu Convection Panel Heater,1500W Space Heater for Large Room Indoor use with Programmable Thermostat,WiFi App Control,Smart Quiet,Works with Alexa,Black
Ballu
- Reliable Winter Warmth That Lasts: Enjoy a cozy home with the Ballu Space Heater, built with a patented Hedgehog Heating Element crafted from aerospace-grade aluminum and protected by an all-metal body. Engineered for long-term performance—tested to deliver warmth season after season. Backed by a 2-year warranty, your purchase is well supported for added peace of mind
- Quick Comfort,Lasting Warmth:With a 36% increase in air contact surface,this heater spreads warmth faster and more evenly.Enjoy heat in just 30 seconds,and experience a cozy environment as it can warm an entire room within 1–2 hours.Ideal for rooms up to 250 sq.ft as a primary heater,and providing supplemental warmth for areas over 500 sq.ft
- Ultimate Control for Large Rooms:Perfect for living rooms or master bedrooms, this heater gives you options—use the remote from the sofa, the sleek digital panel when passing by, or the app with Alexa for effortless voice control. Whether you’re relaxing, working, or getting ready for bed
- Up to 37% Energy Cost Saving:The Ballu Room Heater combines an exposed temperature sensor, adjustable thermostat,and a highly efficient all-aluminum heating element.These features help maintain consistent warmth while optimizing energy use,so you enjoy a comfortable home with smarter,more efficient heating
- Ultimate Comfort Experience: Say goodbye to noise,cold,and dryness.The Ballu Electric Heater quietly fills your space with gentle,consistent warmth—like being wrapped in a soft blanket on a winter night.Whether you’re relaxing,working,or drifting off to sleep,it creates a cozy and peaceful environment that keeps you comfortable all day long
- Enhanced Flexibility and Style:The Convection Panel Heater can be used freestanding with portable casters or easily wall-mounted with the included accessories—no tools required.Its versatile design makes it a perfect fit for bedrooms,offices,living rooms,and apartments,delivering warmth wherever you need it
- Perfect Safety for Your Family: Ballu space heaters for indoor use large room consists of an insulated alloy case, v0-rated flame-retardant power cord,and plug with multiple safety features,including built-in smart tip-over protection,overheat protection,and a 24-hour timer for added peace of mind
- 120 Volt
Compact Space Saver
BLACK+DECKER Portable Heater for Rooms up to 161 Sq. Ft., Oscillating Space Heater & Heater for Bedroom with Overheat Protection, Small Heater with Timer & Manual Controls
BLACK+DECKER
- 4 heat settings
- ideal for use in any small spaces where extra warmth is needed including basement, RV, dorm, office, garage, bedroom, etc.
- 400-watt and 800-watt heating outputs
- settings for low and high heat, and low and high heat with oscillation
- base-mounted control panel
Copper Infrared Tech
EdenPURE Classic CopperPLUS Infrared Heater — 1500 W Energy-Efficient Zone Heater for Large Rooms up to 1000 sq ft — Quiet Operation, Cool-Touch Safety, Portable Comfort for Home, Bedroom or Office
EdenPURE
- Consistent Infrared Warmth for Large Rooms — 1500 watts of EdenPURE CopperPLUS infrared power delivers comfortable warmth for spaces up to 1000 sq ft, ideal for living rooms, bedrooms, and home offices.
- Designed for Efficient Zone Heating — Warm only the areas you use most to help reduce energy waste and support lower heating costs without sacrificing comfort.
- Copper Core Technology — Over 3.5 sq ft of solid copper surface enhances heat transfer for steady, even performance while helping maintain natural humidity in the air.
- Built-In Safety Features — Cool-touch housing, automatic tip-over shut-off, and dual overheat sensors provide added peace of mind for use around children and pets.
- Quiet and Portable Comfort — Smooth-running infrared system operates with minimal fan noise and includes a digital thermostat, remote control, and caster wheels for easy mobility from room to room.
- Durable and Long Lasting Performance – designed for extended use with high quality components tested for more than 80,000 hours of operation, offering dependable heating season after season as a cost-effective alternative to central heating
360° Radiator Heater
Landeagle Space Heaters for Large Room, Whole-Room Heating, 1500 W Radiator Electric Heater with Tip-over & Overheat Protection, Heaters with Remote Control, 12H Timer for Indoor Office Use(26IN)
Landeagle
- 🔥【360° Whole-Room Heating | Large Space Optimized】 Powered by advanced mica heating technology, this radiator heater delivers 1500W of powerful, 99% efficient warmth. Its 360° surround heating ensures even heat distribution across spaces up to 400 sq ft—making it ideal for bedrooms, offices, and living rooms. Wherever you are, experience consistent, enveloping comfort
- 🔥【3-Mode Energy Optimization with ECO Control】 Choose from 1000W (energy-saving), 1500W (fast heating), or smart ECO mode. The programmable thermostat (50°F–95°F) adjusts in 1° increments to automatically minimize energy use while keeping your ideal comfort
- 🔥【Retractable Drying Rack & Skin-Friendly Humidification】 This portable heater features a built-in foldable towel warmer to keep clothes dry and cozy. Its humidification tank adds moisture to the air, helping prevent dry skin and nasal discomfort—even after long periods of use
- 🔥【Child & Pet Safe Certified Heater】 Enjoy total peace of mind with this indoor heater’s advanced safety features. It includes triple overheat protection, flame-resistant materials, tip-over switch, anti-burn plug, child lock, and 7-layer safety verification. UL and FCC certified for guaranteed safety
- 🔥【Silent, Wind-Free Heating with Multi-Control Options】 Experience ultra-quiet warmth with the Landeagle convection heater—no fan, no noise, and no harsh light. Easily control your comfort using the remote, touch panel, or 12-hour timer. Equipped with smooth-rolling wheels and a convenient handle for easy movement between rooms
- Attention：The product does not light up during operation. The heating effect shown is for design purposes only. Please refer to the images without the heating effect for accurate representation
Smart ECO Heating
DUOMIY Space Heater for Indoor Use, 1500W Electric Heaters with 100° Oscillation, 1-12H Timer, Remote, Tower Heater Quick 2s PTC Ceramic Heating, Safety Heater for Office, Bedroom, Large Room (Black)
DUOMIY
- 【Instant Heating】DUOMIY space heater with 1500W and Quick 2s PTC Ceramic Heating with wide-angle 100° oscillation to sweep around your whole living space. Electric heater swiftly distributes warm air to offices, bedrooms, or living rooms. Heating Coverage: 250 sq.ft
- 【ECO Mode】Smart & Precise Temperature Control – Stay comfortable while saving energy. Smart space heater built-in precision temperature sensor works with the ECO mode to automatically adjust power output in real time. Indoor heater simply set your preferred temperature from 55°F to 95°F in ultra-precise 1°F increments, and enjoy consistent warmth without the high electricity bills
- 【Multiple Safety Features】Certified by ETL, this tower heater offers tip-over protection, V0 flame-retardant materials, overheat protection, and a safety plug. DUOMIY heater fan is designed with families in mind. It helps prevent accidents, keeps children safe, and gives you peace of mind every time you use it
- 【Whisper-Quiet Night Comfort】Room heater with ultra-quiet 45 dB operation and calm airflow lets you sleep soundly and work undisturbed during cold winter days. Space heater for bedroom with a smart 1–12 hour timer lets you set the perfect heating duration for a full night’s rest or a cozy afternoon nap
- 【Portable & Smart Control】Portable heater with a hidden handle makes it easy to move this indoor tower heater from bedroom to living room or office, keeping warmth wherever you need it. The built-in LED display shows temperature and settings clearly, and the included remote control lets you adjust heat and timer from anywhere in the room
- 【Auto Cooldown After Shutdown】 Please Note: After pressing the power off button, the heater will not stop operating immediately. For safety and longevity, the built-in fan will continue to run for a short period to dissipate residual heat from the system. This is a normal protective function. The heater will completely power down once the internal temperature has cooled sufficiently
- 【DUOMIY Assurance】This space heater is a perfect winter gift for family or friends! DUOMIY is committed to providing the highest quality shopping experience—if you have any issues, contact us and we’ll respond within 24 hours
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What should I look for in a space heater for 800 sq ft?
Look for a heater with at least 1,500 watts of power and adjustable thermostat settings for efficient heating. Consider safety features like tip-over protection and overheat shut-off, as well as portability options like wheels or handles.
How do ceramic vs. infrared heaters compare for this space size?
Ceramic heaters heat smaller areas quickly and are energy-efficient, while infrared heaters are better for larger spaces like 800 sq ft as they warm objects directly. Infrared models are often quieter but may cost more upfront.
Are electric or propane heaters better for 800 sq ft?
Electric heaters are safer indoors and easier to use, but propane heaters can warm larger spaces faster. Propane models require ventilation and may be less convenient for frequent use.
What features add the most value to a space heater?
Programmable timers and remote controls enhance convenience, while eco modes save energy. A fan-only setting can double as a cooling device in warmer months.
How much should I expect to spend on a quality heater for 800 sq ft?
Expect to pay between $50 and $150 for a reliable model, with higher-end options offering advanced features. Cheaper models may lack safety features or durability.
Can a single heater effectively warm an 800 sq ft room?
Yes, if the heater has sufficient power (1,500+ watts) and the room is well-insulated. For open layouts, consider using multiple heaters or a larger-capacity model.
What safety features are non-negotiable?
Tip-over protection and overheat shut-off are essential to prevent accidents. Cool-touch exteriors and UL certification add extra peace of mind.
How do I determine the right heater size for my space?
Multiply the room’s square footage by 10 to estimate the required wattage (e.g., 800 sq ft × 10 = 8,000 watts, so a 1,500-watt heater may need supplemental heating). Check the manufacturer’s recommendations for your specific model.