Top Picks

The Best Heater For 400 Sq Ft Room to Buy

If you are looking for the best heater for 400 sq ft room, look no further. This comprehensive guide will help you make an informed purchasing decision.

With so many options on the market, it can be difficult to know where to start. But this guide will help you narrow down your choices and find the best heater for 400 sq ft room for your needs.

Top Picks Product Comparison: Heater For 400 Sq Ft Room

Heater For 400 Sq Ft Room Reviews – Top Rated Best Sellers

KLARSTEIN Bornholm Convection Panel Space Heater, 1500 Watt, Warms up to 400 sq ft, Freestanding or Easy Wall Mount, LED Display, ECO Mode, Overheating Protection, Adjustable Programs, Child Lock, Black

KLARSTEIN Bornholm Convection Panel Space Heater, 1500 Watt, Warms up to 400 sq ft, Freestanding or Easy Wall Mount, LED Display, ECO Mode, Overheating Protection, Adjustable Programs, Child Lock, Black

Features :

  • ENJOY FULL-ROOM HEAT: 1500 Watts of heat means that this convection panel heater can quickly and easily heat a room of 400 sq. ft as cold air is silently pulled up into the panel heater.
  • MOST BEAUTIFUL WAY TO STAY WARM: The modern design is sleek, elegant and it's slimmer than traditional, clunky space heaters. With no exposed buttons, the display is lit instead with soothing, easy-to-read LEDs.
  • SAVES YOU MONEY: This unit has an ECO mode which uses less than half the Wattage and you can program it to only stay on when you need it.
  • NO FANS NEEDED: Convection heat silently pulls the cold air up into it so no need for fans that attract dust and grime.
  • HEAT SAFELY: This convection panel heater includes child safety features and overheat protection.

EconoHome Wall Mount Smart Space Heater Panel - Pairs with eWeLink App - 400W Convection Heater - for 120 Sq Ft Room - 120V - Overheat Protection

EconoHome Wall Mount Smart Space Heater Panel - Pairs with eWeLink App - 400W Convection Heater - for 120 Sq Ft Room - 120V - Overheat Protection

Features :

  • SAVE UP TO 50% OF YOUR HOME HEATING COSTS: Lower your energy bills and still feel cozy and warm with our electric heater. Our flat heaters are ENERGY EFFICIENT, consuming 0.4 KW/HR., which is less than 1/3 of the electricity than conventional space heaters. This method will lower your energy bills with great savings and will keep the room with constant ambient warmth.
  • CONVECTOR HEATER SPECS: Ideal for a 120 sq. ft. room, 400 watts, 120 volts, 3.33 amps. Panel Heater Dimensions: 23.5 x 23.5 x ¼”. cETL approved. UL-2021 & RoHS compliant. HEAT REFLECTOR INCLUDED, temperature ranges between 41-86 °F. OVERHEAT PROTECTION for your safety! We offer a 3 Year Manufacturer Warranty!
  • SAFE AND EFFICIENT TECHNOLOGY: This electric wall heater operates at a constant temperature persistently. It ignites with minimal radiant heat which transmits to convection currents that rise from behind the heating panel and circulates heated air around the room. WE RECOMMEND BUYING THE HEAT GUARD ACCESSORY to go along with this heater because it doubles the efficiency of the convection currents, and its exterior casings stay warm and safe to touch.
  • UPDATED CRACK RESISTANT VERSION: This upgraded durable model is TRIPLE REINFORCED and made with a superior calcium silicate material. TRIPLE INSULATED for electrical safety. OVERHEAT PROTECTION makes it safe to leave unattended. EASY TO MOUNT on any wall (Installation hardware Included). Enjoy the beautiful sleek PAINTABLE DESIGN which blends in with any décor.
  • NO FAN THAT DRIES OUT: Asthma and dust allergy sufferers can enjoy warmth without irritation since the air will not dry out, nor will dust circulate around the room. Perfect for all indoor rooms, including bathroom, bedrooms, office, garage, and RV.

EconoHome Wall Mount Space Heater Panel 2023 Model - with Thermostat - 400 Watt Convection Heater - Ideal for 120 Sq Ft Room - 120V Electric Heater - Overheat Protection (Green Foliage)

EconoHome Wall Mount Space Heater Panel 2023 Model - with Thermostat - 400 Watt Convection Heater - Ideal for 120 Sq Ft Room - 120V Electric Heater - Overheat Protection (Green Foliage)

Features :

  • SAVE UP TO 50% OF YOUR HOME HEATING COSTS: Lower your energy bills and still feel cozy and warm with our electric heater. Our flat heaters are ENERGY EFFICIENT, consuming 0.4 KW/HR., which is less than 1/3 of the electricity than conventional space heaters. This method will lower your energy bills with great savings and will keep the room with constant ambient warmth.
  • CONVECTOR HEATER SPECS: Ideal for a 120 sq. ft. room, 400 watts, 120 volts, 3.33 amps. Panel Heater Dimensions: 23.5 x 23.5 x ¼”. cETL approved. UL-2021 & RoHS compliant. HEAT REFLECTOR INCLUDED, temperature ranges between 41-86 °F. This unit may be HARD WIRED! OVERHEAT PROTECTION for your safety! We offer a 3 Year Manufacturer Warranty!
  • SAFE AND EFFICIENT TECHNOLOGY: This electric wall heater operates at a constant temperature persistently. It ignites with minimal radiant heat which transmits to convection currents that rise from behind the heating panel and circulates heated air around the room. WE RECOMMEND BUYING THE HEAT GUARD ACCESSORY to go along with this heater because it doubles the efficiency of the convection currents, and its exterior casings stay warm and safe to touch.
  • UPDATED CRACK RESISTANT VERSION: This upgraded durable model is TRIPLE REINFORCED and made with a superior calcium silicate material. TRIPLE INSULATED for electrical safety. OVERHEAT PROTECTION makes it safe to leave unattended. EASY TO MOUNT on any wall (Installation hardware Included). Enjoy the beautiful sleek PAINTABLE DESIGN which blends in with any décor.
  • NO FAN THAT DRIES OUT: Asthma and dust allergy sufferers can enjoy warmth without irritation since the air will not dry out, nor will dust circulate around the room. Perfect for all indoor rooms, including bathroom, bedrooms, office, garage, and RV.

Ukoke USPC01W Smart WiFi Portable Air Conditioner, Works with Alexa & Mobile App Control, 12000BTU, 4 in 1 AC Unit with Cool, Heat, Dehumidifier & Fan, up to 400 Sq. ft, White

Ukoke USPC01W Smart WiFi Portable Air Conditioner, Works with Alexa & Mobile App Control, 12000BTU, 4 in 1 AC Unit with Cool, Heat, Dehumidifier & Fan, up to 400 Sq. ft, White

Features :

  • ★ Voice Control – Ukoke’s Smart Portable Air Conditioner HVAC Unit works with Alexa to easily turn ON/OFF your AC unit and adjust your desired temperature all by a voice command.
  • ★ Mobile App Control – Download the Ukoke App in Apple App Store and Android Play Store to control your Portable AC anywhere with your smartphone, tablet or computer. Our App is your personal smartphone remote controller allowing users to easily control all Ukoke Smart Home products in one App, making home and family life easier.
  • ★ Traditional Remote Control – Manually control your Portable AC from the digital LED display panel and provided remote control.
  • ★ 4-in-1 Multi-Functional Appliance – 4 functions in 1 HVAC machine combining Cool, Heat, Dehumidifier and high, medium and low Fan mode with an added Swing function to adjust the wind direction.
  • ★ High-end technology -- 12K BTU cooling capacity cools up to 400 square feet of floor space, or a medium-sized room. Switch from Cooler to Heater warming up your room in less than 10 minutes. Eco-friendly R410A refrigerant and efficient compressor lowers noise down to 53 dB, enough to maintain your desired temperature while sleeping.
  • ★ Portability – Easy to install window AC unit – just connect the exhaust hose to the window. Air conditioning unit comes with a washable filter to save money from buying replacement filters. Designed with four wheels on the bottom of the unit for easy and convenient movement around the house, living room, kitchen, and bedrooms.
  • ★ Certifications -- Ukoke USPC01W Portable AC Unit is certified by Intertek for product safety and quality assurance.

Whynter ARC-12SDH 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Storage Bag for Rooms up to 400 sq ft, Multi, White

Whynter ARC-12SDH 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Storage Bag for Rooms up to 400 sq ft, Multi, White

Features :

  • AWARD-WINNING: Good Housekeeping's 2022 "BEST PORTABLE AIR CONDITIONER FOR HIGH HUMIDITY" ; POWERFUL & QUIET: 12,000 BTU (ASHRAE) / 6,884 BTU (SACC) cooling capacity; 11,000 BTU heating capacity; Noise level (dBA): <56
  • ADVANCED SELF-EVAPORATION: Cools up to a 400 square foot space (ambient temperature and humidity may influence optimum performance); Patented auto drain function fully exhausts all condensate automatically in most environments with optional upper gravity drain port; Dehumidifying capacity: 96 pints per day; Air Flow (at high speed): 320 m3/h / 188 CFM; 3 fan speeds
  • MULTI-FUNCTIONAL & ENERGY SAVING: Three operational modes: Cool, Dehumidify, and Fan; Full thermostatic control: 61°F – 89°F (with ambient conditions above 41° F in heating mode); Maximum power consumption: 1100 W / 10.5 A; Power supply: 115 V / 60Hz / 1 Phase; Eco-friendly CFC free Green R-410A refrigerant
  • EASY TO SETUP & PORTABLE: Extendable exhaust hose (up to 60″) 5.9" diameter; Window kit dimension: 6.5″ W x 20″ L (minimum), 46″ (maximum); Unit dimensions: 17″ W x 15.5″ D x 31″ H
  • CLEANER AIR: Activated Carbon Air Filter and Washable Pre-filter

Amaze-Heater Wall Mount Space Heater Panel – with Plug-in Wifi Module - 400 Watt (1364 Btu/Hr) ‘SOLO SMART’ Model Convection Heater - Ideal for 200 Sq Ft Room - 120V Electric Heater

Amaze-Heater Wall Mount Space Heater Panel – with Plug-in Wifi Module - 400 Watt (1364 Btu/Hr) ‘SOLO SMART’ Model Convection Heater - Ideal for 200 Sq Ft Room - 120V Electric Heater

Features :

  • Save up to 50% or more on your heating cost.
  • Efficiently warms a room up to 150 square feet.
  • Uses efficient convection technology.
  • Programmable Timer and Powered by EWeLink with Built in Wi-FiPowered by EWeLink.
  • Integrates with the most popular smart home automation systems.

Whynter Elite ARC-122DHP 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Autopump and Storage Bag for Rooms up to 400 sq ft, Silver

Whynter Elite ARC-122DHP 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Autopump and Storage Bag for Rooms up to 400 sq ft, Silver

Features :

  • AWARD-WINNING: Good Housekeeping's 2022 "QUIETEST PORTABLE AIR CONDITIONER" POWERFUL & QUIET: 12,000 BTU (ASHRAE) / 7,000 BTU (SACC) cooling capacity | 10000 BTU (ASHRAE) / 9500 BTU (SACC) heating capacity; Noise level (dBA): <52
  • AWARD-WINNING: Good Housekeeping's 2022 "QUIETEST PORTABLE AIR CONDITIONER" POWERFUL & QUIET: 12,000 BTU (ASHRAE) / 7,000 BTU (SACC) cooling capacity | 10000 BTU (ASHRAE) / 9500 BTU (SACC) heating capacity; Noise level (dBA): <52
  • ADVANCED SELF-EVAPORATION: Cools up to a 400 square foot space (ambient temperature and humidity may influence optimum performance); Patented auto drain function fully exhausts all condensate automatically in most environments with optional upper gravity drain port and AutoPump for continuous operation (cooling, dehumidifying, and heating modes); Dehumidifying capacity: 82 pints per day; Air Flow (at high speed): 330m3/h / 155CFM; 3 fan speeds
  • MULTI-FUNCTIONAL & ENERGY SAVING: Four operational modes: Cool, Heat, Dehumidify and Fan; Full thermostatic control: 61°F – 89°F (with ambient conditions above 41° F in heating mode); Maximum power consumption: 1200W / 10.5A; Power supply: 115 V / 60Hz / 1 Phase; R32 refrigerant
  • CLEANER AIR: Activated Carbon Air Filter and Washable Pre-filter

Wall Mount Panel Heater -400 Watt Convection Heater Ideal for 50-100 Sq Ft Room,Overheat Protection,for Home Bedroom kitchen Office,120V Electric Heater

Wall Mount Panel Heater -400 Watt Convection Heater Ideal for 50-100 Sq Ft Room,Overheat Protection,for Home Bedroom kitchen Office,120V Electric Heater

Features :

  • DECORATIVE PANEL HEATER: KEY TEK wall mount space heater paintable and graffitiable, you can color this to fit your own home style. Our panel heater is not only a warm electric heater but a styled decoration.
  • CONVENIENT ASSEMBLING: Wall-mounted heater is easy to install. Just mark the positions of the four holes to be drilled in the wall(install the heater 8 inches to 40 inches height from the floor for the best performance).The back of the heater will not damage the walls of the bedroom and living room, so you can use it with confidence. It is 1 inch away from the wall and keeps the temperature in the bedroom and living room by heating up the air.
  • ENERGY SAVING & SAFE: KEY TEK Panel heater is a good choice if you want to use your wall mount heater for a long period of time because of its energy saving performance. This electric wall heater operates at a constant temperature persistently, which makes you and your family feel comfortable.
  • SUPER QUIET & NO STIRRED-UP DUST: This Convector Heater is designed without Fan, which means 100% quiet and no stirred-up dust in the air, ideal for people suffering from asthma or allergies. Also you can enjoy a nice sleep.
  • WILD APPLICATION: Gypsum board panel heaters fits for indoor place such as living room, bedroom, office and so on. It is worth mentioning that our wall mount heater is prefect for bedroom to make bedroom more drier and warm.

Ameriwood Home Lamont Mantel Fireplace, White,1815096COM

Ameriwood Home Lamont Mantel Fireplace, White,1815096COM

Features :

  • Get a fireplace effect without all of the maintenance with the Ameriwood Home Lamont Mantel Fireplace
  • Made of laminated MDF and particleboard, the white finish is accented by the dark gray marble effect around the electric fireplace insert
  • The 3 tiered Fireplace features 2 bookcases with 3 shelves each on either side of the fireplace insert to display your book collection and memorabilia. The 26” fireplace insert features a realistic flame effect that can be used with or without heat. Use the remote control or touch panel to control the different flame settings and heat settings to keep your room at the right temperature. Insert heats a room up to 400 sq. ft. and plugs into a standard 120V outlet
  • Complete your room with other items from Ameriwood Home (sold separately)
  • The Mantel Fireplace ships flat to your door and 2 adults are recommended to assemble and move. Each shelf on the bookcases will hold up to 15 lbs. This Mantel Fireplace is not designed to support a TV. Once assembled, the Fireplace measures to be 44.7”H x 69.3”W x 12.6”D

Dreo Space Heater for Indoor Use, 1500W Fast Heating Ceramic Electric Heater with Thermostat, Remote, Overheating & Tip-Over Protection, 1-12H Timer, 70° Oscillating Portable Heater for Office Bedroom

Dreo Space Heater for Indoor Use, 1500W Fast Heating Ceramic Electric Heater with Thermostat, Remote, Overheating & Tip-Over Protection, 1-12H Timer, 70° Oscillating Portable Heater for Office Bedroom

Features :

  • ETL-Certified Safety: Made of V0 flame-retardant materials with multiple safety features including built-in smart tip-over protection, overheat protection, 12-hour timer, 24-hour automatic power off without interaction, V0 flame retardant 2-prong plug, and sturdy 6ft long flat power cord. Safe and worry-free all-day use
  • Fast Heating: Powerful 1500W PTC ceramic heating allows this space heater to heat up in seconds, suitable for warming up spaces in the home including bedrooms, basements, garages, living rooms, and can also be used in offices, dorms, hot yoga studios, etc
  • Quiet Heating: 40dB - almost as quiet as a library. The fan wheel uses oblique airflow technology, which effectively reduces wind noise and makes the room heater 12% quieter than traditional electric heaters. Calm airflow lets you sleep soundly and work undisturbed during the cold winter
  • Uniform Heating: The exclusive trackball system helps create smooth and quiet oscillation. The 70° wide-angle oscillation, with a lifespan of over 750,000 cycles, boosts heating coverage by 20%, which helps distribute the warm air more evenly towards the room's corners
  • Energy Efficiency: Save on energy bills and live more sustainably. With a built-in precise temperature sensor, the smart ECO mode adjusts the working mode independently (with a low of 900W and high of 1500W) based on the ambient temperature
  • Usage Comfort: The touchscreen is placed on top of the heater for easier reach, and the remote provides full access from up to 26 feet away. The 16-inch compact design makes our space heater a real space saver that is easy to move around with its hidden handle

What to Consider Before Buying the Best Heater For 400 Sq Ft Room

Even deciding on an insignificant purchase can make you feel like choosing between the red pill or the blue one. But is the headache really worth it? Online shopping was meant to make our experience simpler, easier and enjoyable. But in reality it is quite easy to get confused on the decision which one to buy?

This is where our efforts come in! This list of heater for 400 sq ft room will surely save you valuable time and effort. However another question remains, what makes our compilation the best? Or on what basis you should trust this heater for 400 sq ft room list.

Is it virtually possible to know every detail of a product for making a perfect purchase? The answer is definitely NO, it’s not! Then how do you make the correct decision while buying heater for 400 sq ft room? Well, the complexity of selecting a single product from a sea of them can be simplified taking into consideration a few key metrics regarding the product.

We feed thousands of data to our AI regarding these products through advanced algorithms. Based on the relevant data i.e. brand, features, specs, ratings and reviews and many others (which are discussed below) a list of best heater for 400 sq ft room has been prepared by the AI.

Brand Reputation:

Branded products might seem pricey but the point is they are charging those extra bucks for reliability. Unlike many other things, trust doesn’t come cheap. 8 out of 10 times you can trust a branded one.

Unique Features:

Enough and useful features make a product purchase worthy. This is the basic criteria to be followed.

Useful Specifications:

Matching the right specs according to your need is very important and we miss no important things.

Star Ratings:

Healthy ratings indicate a good product. Highest rated products rarely disappoint users. So, we pick the best rated units on our list.

Number of Reviews:

Higher number of reviews in the shortest period of time shows the product is accepted widely by a lot of customers. Customer feedback aka customer reviews are the most insightful source of judging a product’s merit. We take serious consideration into customer reviews and total numbers while choosing them.

Ratio of Positive Reviews Against Bad:

The final rating is an average of all ratings provided by users. But we can get a deeper look at the product’s performance if we analyze the ratings on each star level.

Ranking of the Seller:

Shows the reputation of the seller. Even if you choose the correct item, a bad seller can be a big hassle. So stare clear of them.

Product Ranking in Relevant Category:

These small little details are never left out of our consideration. This is what makes our selection even more confident and authentic.

Bang for the Buck:

Spending a fortune on heater for 400 sq ft room is not a wise thing to do. Our every selected item should provide you the best value for the money you spent.

Selling Growth Over the Product Lifetime:

A product might have thousands of reviews and good ratings, still can be a bad choice. Once hyped products can be an outdated choice now. So, a gradual positive growth of any product indicates its reliability.

Latest Models:

Every product is perfected with every new edition. Those little improvements, upgrades and adjustments come real handy in user experience. So, we keep in mind to choose the latest ones.

Product Availability:

Unavailable product is like a dead lion. Discontinued items are surely not recommended.

Rating By Features:

There is a special segment in amazon where the product is rated according to different relevant features. This one is mostly overlooked by everyone. But we keep a keen eye on this!

Overall Versatility:

A product needs to be versatile and user friendly. Our aim is to prepare a list of best heater for 400 sq ft room which will serve you in a wide range.

Amazon’s Preference:

Amazon’s choice can be a factor to consider. It creates a sense of reliability among customers. We value amazon’s choice and prepare all lists keeping this fact in mind.

Conclusion

After reading through all of the reviews and features of the different heater for 400 sq ft room, it is clear that there are a lot of great options to choose from. However, the best option for each person will vary depending on their individual needs and preferences. But here, the products we have listed above, have great features and are highly rated by customers. If you are looking for the best heater for 400 sq ft room, then any of these 10 would be a great choice for you.

Last update on 2022-09-29 at 23:24 / Affiliate links / Images from Amazon Product Advertising API

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