Buying Guide
The Best Space Heaters Under $150: Our Picks
We looked at 8 space heaters under $150 side by side, with the trade-offs that separate them and who each one suits.
By Jamie Cole, Lead Product Researcher
11 min read8 products evaluated
Across best space heaters under $150, vary more than the keyword suggests, given that the real gap is in the details.
What separates these picks is documented safety features and room size, since this predicts real winter running cost.
Quick Picks
Our 8 recommendations at a glance. Tap a pick for the full verdict.
Best Overall
DREO 25 Inch Electric Space Heater for Indoor Use
Buyers who want the strongest all-around pick in this comparison and would rather not keep shopping around
Our take Check price for DREO 25 Inch Electric Space Heater for Indoor Use (opens in a new tab)
Also Worth Considering
9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat
Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Our take Check price for 9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat (opens in a new tab)
Solid Alternative
9815WH Electric Wall Heater with Built-In Adjustable Thermostat and Silent Motor
Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Our take Check price for 9815WH Electric Wall Heater with Built-In Adjustable Thermostat and Silent Motor (opens in a new tab)
Another Strong Option
PELONIS Radiator Heater for Large Space
Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Our take Check price for PELONIS Radiator Heater for Large Space (opens in a new tab)
Runner-Up Pick
DREO Space Heaters for Indoor Use with Thermostat
Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Our take Check price for DREO Space Heaters for Indoor Use with Thermostat (opens in a new tab)
Worth a Look
PELONIS 30” Ceramic Tower Space Heater with Adjustable Thermostat for Large Room
Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Our take Check price for PELONIS 30” Ceramic Tower Space Heater with Adjustable Thermostat for Large Room (opens in a new tab)
Best Value
GiveBest Space Heater
Buyers who want a capable pick without paying for headroom you won't use
Our take Check price for GiveBest Space Heater (opens in a new tab)
Best Premium Pick
198 High Capacity Wall Heater
Buyers who are willing to spend the most in this comparison for the fuller feature set that comes with it
Our take Check price for 198 High Capacity Wall Heater (opens in a new tab)
Our Picks
Best Overall1 of 8
DREO 25 Inch Electric Space Heater for Indoor Use
DREO 25 Inch Electric Space Heater for Indoor Use is our overall pick in this lineup.
Best for
- Buyers who want the strongest all-around pick in this comparison and would rather not keep shopping around
Why we like it
This room heater for indoor is fully packed to safely warm up your winter. Bring warm air to every corner of your room.
Against 9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat, neither pick has an obvious edge on paper, so the deciding factor comes down to whichever spec matters most for your specific use case.
This fits best if you want the strongest all-around pick in this comparison and would rather not keep shopping around. The manufacturer's square-footage coverage assumes a reasonably insulated room, so a drafty or high-ceiling space may need more wattage than the listing suggests.
Key specs
- Dreo's upgraded 25" space heaters for indoor use brings 11.5
- Warm your nights in absolute quietness
- Unbreakable safety
Pros
- Dreo's upgraded 25" space heaters for indoor use brings 11.5
- Warm your nights in absolute quietness
- Unbreakable safety
- Precise temperature control
Cons
- Coverage claims assume a well-insulated, average-height room
- Running at full wattage all day adds up on the electric bill
Also Worth Considering2 of 8
9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat
9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat is a strong alternative worth comparing directly against the top pick.
Best for
- Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Why we like it
This electric wall heater features 1500w high-power fan-forced heating, rapidly warming indoor spaces up to 350 square feet. Designed with 120v/240v dual voltage compatibility, this wall mount heater supports simple on-site wiring adjustment.
Against DREO 25 Inch Electric Space Heater for Indoor Use, neither pick has an obvious edge on paper, so the deciding factor comes down to whichever spec matters most for your specific use case.
Go with this pick if you want a genuine alternative to the top pick with a different tradeoff worth comparing directly. 23 per hour at average electricity rates, so a genuine low-wattage setting and working thermostat matter for the season's total cost.
Key specs
- Efficient whole room heating
- Dual voltage versatile use
- Comfortable preheat function
Pros
- Efficient whole room heating
- Dual voltage versatile use
- Comfortable preheat function
- Maintenance-free durability
Cons
- Running at full wattage all day adds up on the electric bill
- Coverage claims assume a well-insulated, average-height room
Solid Alternative3 of 8
9815WH Electric Wall Heater with Built-In Adjustable Thermostat and Silent Motor
9815WH Electric Wall Heater with Built-In Adjustable Thermostat and Silent Motor is a strong alternative worth comparing directly against the top pick.
Best for
- Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Why we like it
9815Wh wall heater stably delivers 1500w of heat at both 120v and 240v (default connection: 120v/1500w), adapting flexibly to your home’s electrical system. 9815Wh wall heater features a louvered design that provides instant and uniform heat distribution across a wide area, ensuring every corner of your space stays warm and cozy.
DREO 25 Inch Electric Space Heater for Indoor Use covers similar ground, though 9815Wh wall heater is permanently lubricated, requiring no oiling or disassembly for maintenance is what tips the choice one way or the other.
This one is the right call if you want a genuine alternative to the top pick with a different tradeoff worth comparing directly. The manufacturer's square-footage coverage assumes a reasonably insulated room, so a drafty or high-ceiling space may need more wattage than the listing suggests.
Key specs
- Dual voltage option
- Thoughtful design
- Quiet & safe operation
Pros
- Dual voltage option
- Thoughtful design
- Quiet & safe operation
- Easy to use
Cons
- Coverage claims assume a well-insulated, average-height room
- Running at full wattage all day adds up on the electric bill
Another Strong Option4 of 8
PELONIS Radiator Heater for Large Space
PELONIS Radiator Heater for Large Space is a strong alternative worth comparing directly against the top pick.
Best for
- Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Why we like it
The 1500w power heats the whole house rapidly and the hot air circulation delivers long-lasting and gentle warmth which avoids dryness in winter, making pelonis oil heater your best choice. Equipped with 3 heating modes 600w/900w/1500w, which can also be used in combination to help save energy bills in winter.
Set next to DREO 25 Inch Electric Space Heater for Indoor Use, the two land close enough on paper that it's worth comparing both listings directly on the spec that matters most for your setup.
Choose this if you want a genuine alternative to the top pick with a different tradeoff worth comparing directly. 23 per hour at average electricity rates, so a genuine low-wattage setting and working thermostat matter for the season's total cost.
Key specs
- Fast heating, lasting comfort
- Energy efficient
- Lacking of fan construction
Pros
- Fast heating, lasting comfort
- Energy efficient
- Lacking of fan construction
- Comprehensive safety
Cons
- Running at full wattage all day adds up on the electric bill
- Coverage claims assume a well-insulated, average-height room
Runner-Up Pick5 of 8
DREO Space Heaters for Indoor Use with Thermostat
DREO Space Heaters for Indoor Use with Thermostat is a strong alternative worth comparing directly against the top pick.
Best for
- Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Why we like it
34Db - almost as quiet as a library. Experience enhanced comfort in large rooms with the exclusive trackball system, engineered for smooth and whisper-quiet oscillation.
Side by side with DREO 25 Inch Electric Space Heater for Indoor Use, the real difference worth noting is save on energy bills and live more sustainably.
Choose this if you want a genuine alternative to the top pick with a different tradeoff worth comparing directly. The manufacturer's square-footage coverage assumes a reasonably insulated room, so a drafty or high-ceiling space may need more wattage than the listing suggests.
Key specs
- Etl-certified safety
- Fast indoor ceramic heater
- Quiet heating
Pros
- Etl-certified safety
- Fast indoor ceramic heater
- Quiet heating
- Uniform heating
Cons
- Coverage claims assume a well-insulated, average-height room
- Running at full wattage all day adds up on the electric bill
Worth a Look6 of 8
PELONIS 30” Ceramic Tower Space Heater with Adjustable Thermostat for Large Room
PELONIS 30” Ceramic Tower Space Heater with Adjustable Thermostat for Large Room is a strong alternative worth comparing directly against the top pick.
Best for
- Buyers who want a genuine alternative to the top pick with a different tradeoff worth comparing directly
Why we like it
Using reliable and effective ceramic heating technology, this powerful 1500w heater quickly heats up to 70°f in 3s, providing a consistent and comfortable temperature. Our 30” tower heater can cover up to 280 ft2, paired with a 75° wide oscillation helps the heat cover every corner of the room, well suited choice for large bedrooms and large living rooms.
DREO 25 Inch Electric Space Heater for Indoor Use is a reasonable point of comparison here, close enough that the actual listing details are worth checking before deciding between them.
This makes sense for anyone who want a genuine alternative to the top pick with a different tradeoff worth comparing directly. 23 per hour at average electricity rates, so a genuine low-wattage setting and working thermostat matter for the season's total cost.
Key specs
- Rapid heating & constant temperature
- Wide heating coverage
- 4 Quiet settings
Pros
- Rapid heating & constant temperature
- Wide heating coverage
- 4 Quiet settings
- Comprehensive safety protection
Cons
- Running at full wattage all day adds up on the electric bill
- Coverage claims assume a well-insulated, average-height room
Best Value7 of 8
GiveBest Space Heater
GiveBest Space Heater is the most affordable pick here that still clears the capability floor for this category.
Best for
- Buyers who want a capable pick without paying for headroom you won't use
Why we like it
2 In 1 heater fan: this ceramic heater offers dual heating modes (1500w/750w) plus a cool air fan, making it ideal for both winter and summer. These heaters are made of v0 flame retardant material avoiding any fire hazard.
Upgrade ABS material applied, which is more flame resident, which is the main thing that distinguishes this pick from DREO 25 Inch Electric Space Heater for Indoor Use.
This fits best if you want a capable pick without paying for headroom you won't use. The manufacturer's square-footage coverage assumes a reasonably insulated room, so a drafty or high-ceiling space may need more wattage than the listing suggests.
Key specs
- 2 In 1 heater fan
- These heaters are made of v0 flame retardant material avoiding any fire hazard
- Mini heater with build in carry handle
Pros
- 2 In 1 heater fan
- These heaters are made of v0 flame retardant material avoiding any fire hazard
- Mini heater with build in carry handle
- Quiet and fast heating
Cons
- Coverage claims assume a well-insulated, average-height room
- Running at full wattage all day adds up on the electric bill
Best Premium Pick8 of 8
198 High Capacity Wall Heater
198 High Capacity Wall Heater is the top-tier pick in this comparison.
Best for
- Buyers who are willing to spend the most in this comparison for the fuller feature set that comes with it
Why we like it
The 198 high capacity wall heater delivers a maximum heat output of 4000w, ideal for rooms spanning 265 to 400 square feet. The 198 wall heater supports dual power supply options of 240v and 120v, with full 4000w or half 2000w output, suitable for standard household circuits.
Outstanding heating performance is maintained for both residential and light commercial spaces, which is the main thing that distinguishes this pick from DREO 25 Inch Electric Space Heater for Indoor Use.
This makes sense for anyone who are willing to spend the most in this comparison for the fuller feature set that comes with it. 23 per hour at average electricity rates, so a genuine low-wattage setting and working thermostat matter for the season's total cost.
Key specs
- High power heating
- Easy installation
- High capacity wall heater is equipped with a manual reset thermal overload protector
Pros
- High power heating
- Easy installation
- High capacity wall heater is equipped with a manual reset thermal overload protector
- Wide application
Cons
- Running at full wattage all day adds up on the electric bill
- Coverage claims assume a well-insulated, average-height room
How We Chose These Space Heaters Under $150
Each pick was assessed across 5 criteria weighted for real-world use.
- Wattage vs Actual Room Size
- The standard rule of thumb is about 10 watts of heating power per square foot of floor area, so a 1,500-watt heater (the max most household outlets safely support) is sized for roughly a 150 square foot room, not a whole floor or an open-concept living area.
- Tip-Over and Overheat Protection Are Non-Negotiable
- Tip-over protection and overheat protection solve two different failure modes and a real space heater needs both: tip-over protection cuts power if the unit is physically knocked over, while a thermal fuse shuts it down if it overheats internally even while sitting upright.
- Third-Party Safety Certification (UL, ETL, or CSA)
- A label from UL Solutions, ETL (Intertek), or CSA means the heater's construction and performance were independently tested against recognized U.S.
- Ceramic vs Infrared vs Oil-Filled Heat Type
- The three common heat types trade off speed, quiet operation, and how the warmth is distributed: ceramic heaters warm a room fastest but rely on a fan that adds noise and stops heating the moment it's off; infrared heaters warm people and objects directly rather than circulating air, ideal for a spot right next to a desk but weaker at heating an entire room; oil-filled radiators are the slowest to warm up and the quietest, holding heat for a long time after being turned off, which suits overnight bedroom use where fan noise is unwelcome..
- Running Cost at Full Wattage
- A typical 1,500-watt space heater costs roughly $0.12 to $0.23 per hour to run at the U.S.
What to Look for in a Space Heater Under $150
Key buying criteria so you get the right fit the first time.
Wattage vs Actual Room Size
The standard rule of thumb is about 10 watts of heating power per square foot of floor area, so a 1,500-watt heater (the max most household outlets safely support) is sized for roughly a 150 square foot room, not a whole floor or an open-concept living area. A heater with only a low 750-900 watt setting will run constantly and still underheat a larger room, while a 1,500-watt unit in a small bedroom can overshoot and cycle on and off more than necessary. Check the manufacturer's stated square footage coverage against your room's actual dimensions, not just the wattage number alone.
Tip-Over and Overheat Protection Are Non-Negotiable
Tip-over protection and overheat protection solve two different failure modes and a real space heater needs both: tip-over protection cuts power if the unit is physically knocked over, while a thermal fuse shuts it down if it overheats internally even while sitting upright. Check that the listing explicitly names both features, not just a generic 'safety shutoff' claim, particularly if the heater will be used somewhere it could get bumped, like a bathroom or a kid's room.
Tower space heater on the floor beside a computer desk Third-Party Safety Certification (UL, ETL, or CSA)
Safety standards, not just self-certified by the manufacturer. This matters more for space heaters than almost any other small appliance category, since they're a leading cause of home heating fires when a unit has a manufacturing defect or a corner-cut cord. If a listing doesn't mention one of these three certifications anywhere in the title, images, or bullet points, treat that as a real gap, not an oversight.
Ceramic vs Infrared vs Oil-Filled Heat Type
The three common heat types trade off speed, quiet operation, and how the warmth is distributed: ceramic heaters warm a room fastest but rely on a fan that adds noise and stops heating the moment it's off; infrared heaters warm people and objects directly rather than circulating air, ideal for a spot right next to a desk but weaker at heating an entire room; oil-filled radiators are the slowest to warm up and the quietest, holding heat for a long time after being turned off, which suits overnight bedroom use where fan noise is unwelcome.
White space heater with two control dials Running Cost at Full Wattage
Average electricity rate, which adds up fast if it's running for several hours a day through a whole winter, a heater with a 750-watt low setting and a working thermostat that actually cycles off (rather than running at full power constantly) can meaningfully cut that cost over a season. Check whether the listed wattage is a single fixed output or a range with a genuine low setting, since 'up to 1,500 watts' models that only run at that ceiling cost roughly twice as much per hour as a heater that can step down.
How to Choose a Space Heater Under $150
By Room Size
| Your room | Recommended pick |
|---|---|
| Small room or under a desk | GiveBest Space Heater |
| Standard bedroom or office | DREO 25 Inch Electric Space Heater for Indoor Use |
| Larger living space | 198 High Capacity Wall Heater |
By Budget
| Budget | Recommended pick |
|---|---|
| Lowest price in this lineup | GiveBest Space Heater |
| Mid-range pick | 9815WH High Capacity Wall Heater With Built-In Adjustable Thermostat |
| Higher budget | 198 High Capacity Wall Heater |
Ceramic vs Oil-Filled Heat
- DREO 25 Inch Electric Space Heater for Indoor Use)
- Heats a room fastest using a fan, but cools down quickly once switched off.
- Oil-filled radiator
- Slower to warm up but silent and holds heat long after being turned off, best for overnight use.
Match this to whether you need fast heat now or quiet, sustained warmth overnight.
By Safety Priority
| Your situation | Recommended pick |
|---|---|
| Kids or pets in the room | Check for both tip-over AND overheat protection specifically |
| Standard adult-only room | DREO 25 Inch Electric Space Heater for Indoor Use |
For Overnight Bedroom Use Specifically
- Look for
- A genuine low-wattage setting, a working thermostat that cycles off, and UL/ETL/CSA safety certification.
- In this comparison
- DREO 25 Inch Electric Space Heater for Indoor Use is worth checking against its specific safety certifications before assuming any 'safe' label performs the same.
When to Spend More
- Spend more if
- You're heating a larger room and want a thermostat and multiple heat settings, where 198 High Capacity Wall Heater justifies the extra cost.
- Save if
- You're heating a small space or supplementing central heat, where GiveBest Space Heater already covers the job at the lowest price here.
Frequently Asked Questions
What size space heater do I need for my room?
Use roughly 10 watts of heating power per square foot as a baseline, meaning a 1,500-watt heater (the practical ceiling for a standard household outlet) suits about a 150 square foot room; check the manufacturer's stated coverage against your room's actual square footage rather than assuming higher wattage always means better performance.
Do all space heaters have tip-over protection?
They should, but not all listings make this clear: look specifically for both a tip-over shutoff (cuts power if knocked over) and a separate overheat thermal fuse (shuts off if internal temperature climbs too high), since these are two distinct safety mechanisms and a real safety-conscious heater needs both.
Why does a UL, ETL, or CSA certification matter?
Safety standards rather than only self-certified by the manufacturer, which matters given that space heaters are a documented leading cause of residential heating fires; a listing missing all three certifications is a real gap to check for.
Is a ceramic, infrared, or oil-filled heater better?
It depends on your priority: ceramic heats a room fastest but uses a fan and cools quickly once off, infrared warms you directly and near-instantly but doesn't heat the whole room evenly, and oil-filled radiators are slow to warm up but run silently and hold heat long after being switched off, best for quiet overnight bedroom use.
How much does it cost to run a space heater all day?
Electricity rates, which adds up over a full day or a winter season; a heater with a genuine low-wattage setting and a working thermostat that cycles off once the room warms up can meaningfully reduce that cost versus one that runs at full wattage constantly.
Are space heaters safe to leave on overnight?
Only with real tip-over and overheat protection, third-party safety certification, and at least three feet of clearance from bedding, curtains, or other flammable material; an oil-filled radiator is often the safer overnight choice specifically because it has no exposed heating element or fan.
Bottom Line
Best overall: DREO 25 Inch Electric Space Heater for Indoor Use — best overall pick in this roundup. See the full verdicts above for every pick, with pros, cons and who each one suits.
Browse all space heaters under $150 on Amazon — Prime-eligible options with current pricing.