When selecting a space heater for a large room, the key considerations are power, coverage, safety, and ease of use. The best overall pick, the DREO Space Heater for Large Rooms, combines high wattage with safety features to effectively heat large spaces. The EdenPURE CopperPLUS infrared heater stands out for its infrared technology, offering more efficient warmth. However, buyers face tradeoffs such as higher energy consumption versus better coverage, and more features versus simplicity. Continue reading for a detailed breakdown of the top options and what makes each suitable for different needs.
Complete the kit
Key Takeaways
- Power output and coverage are the primary factors differentiating these heaters; larger wattage typically means better large-room heating.
- Infrared heaters like EdenPURE can be more energy-efficient and offer more comfortable warmth compared to convection models, but often come at a higher price.
- Features such as oscillation, remote control, and thermostats enhance convenience, especially in large spaces where precise control matters.
- Safety features like tip-over protection and overheat shutoff are standard but vary in quality; prioritize models with comprehensive safety measures.
- Price points vary widely, with premium models offering advanced features and durability, while value options provide effective heating at a lower cost.
| DREO Space Heater for Large Rooms, 24-inch Electric Heater with ECO Mode and Safety Features |  | Best Overall for Large, Safe Heating with Energy Efficiency | Size: 24 inches | Heating Area: up to 250 sq.ft. | Heat Levels: 3 | VIEW ON AMAZON | See Our Full Breakdown |
| DREO Space Heaters for Indoor Use, 16 Inch Electric Heater for Large Room |  | Best Value for Quick and Safe Heating in Large Spaces | Power: 1500W | Coverage Area: 250 sq.ft. | Heating Speed: 11.8 ft/s | VIEW ON AMAZON | See Our Full Breakdown |
| DREO Space Heater, Portable Electric Heaters for Indoor Use with Thermostat |  | Best for Wide Coverage and Quiet Operation in Indoor Spaces | Power: 1500W | Temperature Range: 41-95°F | Oscillation: 70° | VIEW ON AMAZON | See Our Full Breakdown |
| DREO Quiet Space Heater, 1500W Portable Indoor Heater with Remote |  | Best for Quiet, Precise Comfort with Remote Control | Power: 1500W | Temperature Range: 41-95°F | Noise Level: 34dB | VIEW ON AMAZON | See Our Full Breakdown |
| EdenPURE CopperPLUS Infrared Heaters for Indoor Use, Portable, 1000 Sq Ft |  | Best Premium Zone Heating with Copper PTC Technology | Heating Technology: Copper PTC | Coverage Area: 1000 sq ft | Power: 1500W | VIEW ON AMAZON | See Our Full Breakdown |
| DREO Space Heater, Portable Electric Heater with Thermostat, 1500W |  | Best Overall for Versatile Small-Scale Large Rooms | Power: 1500 watts | Voltage: 120 volts | Heating Coverage: 200 sq.ft | VIEW ON AMAZON | See Our Full Breakdown |
| Kucreiheat Space Heater, 1500W Electric Panel Heater with Remote, Timer, Overheat & Tip-over Protection, Quiet Fanless Design, Black |  | Best for Quiet, Large Room Heating Up to 500 sq.ft. | Power: 1500W | Coverage: up to 500 sq.ft | Dimensions: 22.6″L x 16.9″H x 3.7″W | VIEW ON AMAZON | See Our Full Breakdown |
| 25-inch Indoor Space Heater with Thermostat, Oscillation, Timer, Remote Control, Overheat Protection, Beige |  | Best for Wide Coverage with Oscillation and Energy Efficiency | Power: 1500W | Coverage: Large room | Oscillation: 80° | VIEW ON AMAZON | See Our Full Breakdown |
| DREO Space Heater Large Room, 120° Oscillation, 30″ Heaters with Remote |  | Best for Powerful, Adjustable Coverage Up to 300 sq.ft. | Heating Coverage: 300 sq.ft. | Oscillation: 120° | Number of Speeds: 8 | VIEW ON AMAZON | See Our Full Breakdown |
| DREO 25 Inch Electric Space Heater for Indoor Use with Thermostat |  | Best for Precise Control and Wide-Area Coverage | Size: 25 inches | Heat Range: 100-270 sq.ft | Temperature Range: 41-95°F | VIEW ON AMAZON | See Our Full Breakdown |
| space heater for large room | Power | Temperature Range | Oscillation | Noise Level |
|---|---|---|---|---|
| DREO Space Heater for Large Ro | — | 41-95°F | 70° wide | 34dB |
| DREO Space Heaters for Indoor | 1500W | 41-95°F | — | 34dB |
| DREO Space Heater | 1500W | 41-95°F | 70° | 37.5dB |
| DREO Quiet Space Heater | 1500W | 41-95°F | 70 degrees | 34dB |
| EdenPURE CopperPLUS Infrared H | 1500W | — | — | — |
| DREO Space Heater | 1500 watts | 41-95°F | — | — |
| Kucreiheat Space Heater | 1500W | — | — | — |
| 25-inch Indoor Space Heater wi | 1500W | — | 80° | — |
| DREO Space Heater Large Room | — | — | 120° | — |
| DREO 25 Inch Electric Space He | — | 41-95°F | 70° | 25dB |
More Details on Our Top Picks
DREO Space Heater for Large Rooms, 24-inch Electric Heater with ECO Mode and Safety Features
This DREO model stands out for its ability to quickly warm large indoor spaces up to 250 sq.ft., thanks to dual motors and a wide oscillation that promote even heat distribution. Its ECO mode can cut energy use by up to 40%, making it a smart choice for those seeking efficiency without sacrificing comfort. Compared to the smaller DREO heater, it covers more area but is bulkier, which could be a drawback in tighter spaces. Safety features like child-lock, tip-over, and overheat protections enhance peace of mind, while quiet operation keeps it unobtrusive. The tradeoff is that its size may limit placement options, and it’s primarily an indoor-only device.
Pros:- Rapid heating with dual motors and wide oscillation
- Energy-efficient ECO mode reduces power consumption
- Comprehensive safety features including child-lock and tip-over protection
- Quiet operation at 34dB
Cons:- Bulky design may be difficult to place in small rooms
- Price not specified, potentially higher investment
Best for: Families or individuals needing rapid, energy-efficient heating for large, open-plan spaces
Not ideal for: Small apartments or rooms where space is limited, due to its bulk
- Size:24 inches
- Heating Area:up to 250 sq.ft.
- Heat Levels:3
- Temperature Range:41-95°F
- Noise Level:34dB
- Oscillation:70° wide
- Timer:12 hours
Our verdict“This heater is ideal for large rooms where quick, safe, and energy-conscious heating is a priority.”
DREO Space Heaters for Indoor Use, 16 Inch Electric Heater for Large Room
This compact yet powerful DREO heater offers effective warmth for large rooms up to 250 sq.ft., featuring adjustable temperature controls and safety features like tip-over and overheat protection. Its 1500W power ensures rapid heating, making it suitable for bedrooms or living rooms. In comparison to the taller, bulkier models, this unit is more portable but might lack some coverage uniformity in very large or poorly insulated spaces. The digital thermostat allows precise control, but its small size limits placement flexibility, and it doesn’t include smart controls or remote operation, which could be a drawback for some users.
Pros:- Fast and efficient heating suitable for large spaces
- Multiple safety protections including tip-over and overheat
- Quiet operation ideal for bedrooms and offices
- Digital thermostat for precise temperature management
Cons:- Limited to indoor use; size may be too small for very large or open spaces
- No remote or smart features included
Best for: Homeowners seeking a powerful, space-saving heater with precise temperature control
Not ideal for: Users wanting integrated smart home features or remote control capabilities
- Power:1500W
- Coverage Area:250 sq.ft.
- Heating Speed:11.8 ft/s
- Temperature Range:41-95°F
- Noise Level:34dB
- Safety Features:Tip-over, overheat protection
Our verdict“This model makes the most sense for those needing a compact, powerful heater with safety and precision in a large room.”
DREO Space Heater, Portable Electric Heaters for Indoor Use with Thermostat
This DREO heater offers strong, efficient heating with 1500W power and wide 360° oscillation, making it suitable for large rooms or open areas. Its safety features, including tip-over and overheat protections, are complemented by a digital thermostat that enables fine-tuned comfort. Compared with the smaller 16-inch model, this unit provides broader coverage but may be slightly noisier at 37.5 dB. Its quiet operation makes it a good choice for bedrooms or workspaces, yet its energy consumption can be higher if used at maximum settings, which might impact utility bills.
Pros:- Fast, efficient heating with high power output
- Wide-angle oscillation for even coverage
- Quiet operation suitable for bedrooms or offices
- Enhanced safety with tip-over and overheat protections
Cons:- Limited to indoor use; no smart or remote control features
- Potentially higher energy use at max settings
Best for: Users needing a wide-coverage, quiet heater for large indoor spaces where safety is a priority
Not ideal for: Those seeking smart controls or remote operation, as these are not mentioned
- Power:1500W
- Temperature Range:41-95°F
- Oscillation:70°
- Noise Level:37.5dB
- Safety Features:Tip-over, overheat protection
Our verdict“This heater is well-suited for large rooms where wide, quiet, and safe heating is needed without smart home integration.”
DREO Quiet Space Heater, 1500W Portable Indoor Heater with Remote
This DREO model excels at providing efficient, quiet warmth across large indoor spaces, thanks to its 1500W power and 70° oscillation. Its key advantage is the remote control, allowing users to adjust temperature and settings from across the room—an upgrade over manual controls. Its safety features, including child-lock and tip-over protections, make it suitable for family environments. However, like other 1500W units, it can lead to higher energy bills if used constantly at maximum. Its quiet operation at 34dB makes it especially appealing for bedrooms or workspaces, but it’s not designed for smart home integration, which could be a downside for some.
Pros:- Efficient and widespread heating
- Quiet operation suitable for sleep or work
- Remote control for convenience
- Multiple safety protections
Cons:- Limited to indoor use; no smart home features
- Energy consumption may be high at full power
Best for: Those who prioritize quiet operation and remote control for large, indoor living areas
Not ideal for: Users seeking smart home connectivity or app-based controls
- Power:1500W
- Temperature Range:41-95°F
- Noise Level:34dB
- Oscillation:70 degrees
- Safety Features:Child-lock, tip-over, overheat
- Control:Remote
Our verdict“This heater is perfect for users who want quiet, remote-controlled, safe heating in large indoor environments.”
EdenPURE CopperPLUS Infrared Heaters for Indoor Use, Portable, 1000 Sq Ft
This EdenPURE heater uses advanced copper PTC technology to efficiently heat spaces up to 1000 sq.ft., making it an excellent long-term energy saver for large areas. Its 24 preset temperature settings allow precise comfort customization, and safety features like overheat sensors and tip-over shut-off add peace of mind. Its portability with wheels makes it flexible for different rooms, but it may be less suited for very large or poorly insulated spaces since its maximum coverage is 1000 sq.ft., compared to models like the DREO 24-inch that are designed for immediate, rapid heating. Additionally, it lacks smart home integration, which might limit automation options.
Pros:- Copper PTC technology enhances heat transfer and efficiency
- 24 adjustable heat settings for tailored comfort
- Includes washable filter and safety sensors
- Portable with wheels for easy movement
Cons:- Heats up to 1000 sq.ft., less effective in very large or poorly insulated spaces
- No smart home or app control features
Best for: Large open-concept spaces or zone heating where energy efficiency and precise control are desired
Not ideal for: Small rooms or spaces requiring instant, high-capacity heating, as it is optimized for efficiency over rapid heat-up
- Heating Technology:Copper PTC
- Coverage Area:1000 sq ft
- Power:1500W
- BTU:5000 BTU
- Dimensions:16.75″H x 13″W x 16.5″D
- Weight:24 lbs
- Number of Heat Settings:24
Our verdict“This premium model suits large, open spaces where zone heating and energy efficiency are priorities over rapid heat-up times.”
DREO Space Heater, Portable Electric Heater with Thermostat, 1500W
The DREO Space Heater stands out for its fast, efficient heating that covers up to 200 sq.ft., making it ideal for moderately large spaces like living rooms or home offices. Unlike the Kucreiheat panel heater, which offers more expansive coverage, this model provides quicker warmth with its 1500W PTC ceramic system, but may struggle in very large areas. Its safety features, including tilt detection and overheat protection, add peace of mind, while quiet operation makes it suitable for bedrooms. However, it lacks smart connectivity and is limited to indoor use, so it’s less suited for those seeking automation or outdoor protection. This heater makes sense for users who want reliable heat in small-to-medium large rooms without complex controls.
Pros:- Fast heating with 1500W ceramic system
- Lightweight and portable at just 3 pounds
- Advanced safety features including tilt detection and overheat protection
- Quiet operation suitable for bedrooms
Cons:- Limited to indoor use only
- No smart home connectivity or app controls
- Coverage may be insufficient for larger rooms over 200 sq.ft.
Best for: Individuals needing a compact, portable heater for rooms up to 200 sq.ft., such as bedrooms or small living areas
Not ideal for: People with large open-plan spaces exceeding 200 sq.ft. or those wanting smart home integration
- Power:1500 watts
- Voltage:120 volts
- Heating Coverage:200 sq.ft
- Temperature Range:41-95°F
- Dimensions:7.32″D x 7.32″W x 11.02″H
- Weight:3 pounds
- Number of Speeds:4
Our verdict“Ideal for users seeking quick, reliable heating in small to medium rooms without smart features.”
Kucreiheat Space Heater, 1500W Electric Panel Heater with Remote, Timer, Overheat & Tip-over Protection, Quiet Fanless Design, Black
The Kucreiheat Panel Heater excels with its quiet, fanless operation, making it perfect for bedrooms, offices, or quiet living spaces. It can heat up to 500 sq.ft., outperforming the DREO portable heater in coverage, but it’s bulkier at 22.6 inches long and may require more space to install. Its energy-efficient AI mode adjusts temperature based on room conditions, which can save power but might turn off heating once the desired temperature is reached—potentially leaving some users wanting more manual control. The remote and adjustable thermostat add convenience, but the lack of smart home compatibility limits its automation potential. This heater is best suited for those prioritizing silent operation and large-area coverage over sleekness or smart features.
Pros:- Fanless, silent operation
- Heats up to 500 sq.ft. quickly
- Includes remote control and adjustable thermostat
- Safe with overheat and tip-over protections
Cons:- Bulky design may not fit small spaces
- AI mode may turn off heating prematurely
- No smart connectivity options
Best for: Homeowners or office users needing quiet, large-area heating up to 500 sq.ft. without noise disruption
Not ideal for: People wanting smart home integration or those with limited space for a bulky panel design
- Power:1500W
- Coverage:up to 500 sq.ft
- Dimensions:22.6″L x 16.9″H x 3.7″W
- Weight:9.25 lbs
- Voltage:110-120 volts
- Frequency:60Hz
Our verdict“Best for users who need large-area, silent heating with minimal noise disturbance.”
25-inch Indoor Space Heater with Thermostat, Oscillation, Timer, Remote Control, Overheat Protection, Beige
The 25-inch Electric Tower Heater offers broad coverage with 120° oscillation, making it a strong choice for large, open rooms. Its AI mode intelligently adjusts heat, helping conserve energy, but this can lead to the heater stopping once the room reaches the set temperature—less ideal if continuous warmth is desired. The multiple heat settings and remote control make it user-friendly, though the limited to two heat modes might not satisfy those seeking precise control. Compared to the smaller DREO models, this unit prioritizes wider coverage but at the expense of a slightly bulkier footprint. It’s well-suited for those who want a combination of energy efficiency and wide-area warmth in a stylish tower design.
Pros:- AI mode for energy savings
- Wide coverage with oscillation
- Remote control for convenience
- Ceramic PTC technology for fast warmth
Cons:- Stops heating in AI mode once target temperature is reached
- Limited to two heat settings
- Bulky for small spaces
Best for: Consumers seeking an energy-efficient, wide-area heater with oscillation for large rooms
Not ideal for: Those preferring multiple heat levels or requiring continuous heating without automatic shutoff
- Power:1500W
- Coverage:Large room
- Oscillation:80°
- Heat Settings:2 (low, high)
- Modes:AI, Manual
- Safety Features:Overheat, Anti-Tip
Our verdict“Ideal for users who want efficient, wide coverage with minimal manual adjustments.”
DREO Space Heater Large Room, 120° Oscillation, 30″ Heaters with Remote
The DREO Large Room Heater delivers robust coverage for spaces up to 300 sq.ft., with 120° oscillation and multiple comfort levels. Compared to the Kucreiheat panel, which offers quieter operation, this tower provides more adjustable heat output and oscillation, making it suitable for rooms that need targeted warmth. Its safety features, including tip-over and overheat protections, are comprehensive, but it requires a stable power environment and may be less sleek in appearance. The multiple speeds and remote control make it versatile, yet it’s somewhat limited for very large rooms beyond 300 sq.ft. This model caters to users who want adjustable, widespread heat in medium to large rooms with safety in mind.
Pros:- Effective coverage for up to 300 sq.ft.
- Adjustable oscillation for targeted warmth
- Multiple safety features including tip-over protection
- Quiet operation at 25 dB
Cons:- Limited to 300 sq.ft. coverage
- Requires stable voltage for best performance
- Bulkier design may not suit small rooms
Best for: Families or individuals needing effective, adjustable heating for rooms up to 300 sq.ft.
Not ideal for: Those with larger open spaces or seeking ultra-quiet operation at the expense of some coverage
- Heating Coverage:300 sq.ft.
- Oscillation:120°
- Number of Speeds:8
- Max Temperature:95°F
- Min Temperature:41°F
- Remote Control:Yes
Our verdict“Best for users requiring flexible, effective heating in medium-sized rooms with safety features.”
DREO 25 Inch Electric Space Heater for Indoor Use with Thermostat
The DREO 25 Inch Electric Space Heater offers a combination of wide-area coverage up to 270 sq.ft. and precise temperature control, making it suitable for large, drafty rooms. Its multiple modes, including ECO, and safety features such as child lock and overheat protection, provide a comprehensive user experience. Compared to the smaller models, its size and features aim at balancing coverage and safety, but it may be bulky for smaller spaces. The quiet operation at 25dB makes it suitable for bedrooms and offices, though its size could be a drawback for tight spaces. This heater best serves users who want reliable, safe, and customizable heating across large indoor areas.
Pros:- Wide coverage up to 270 sq.ft.
- Multiple modes including ECO for efficiency
- Child lock and safety features
- Quiet operation at 25 dB
Cons:- Bulkier size may be unsuitable for small rooms
- Limited to indoor use
- Requires outlet for power
Best for: Homeowners seeking a large, safe, and energy-efficient heater with precise temperature control
Not ideal for: People with very limited space or seeking a lightweight, portable heater
- Size:25 inches
- Heat Range:100-270 sq.ft
- Temperature Range:41-95°F
- Noise Level:25dB
- Oscillation:70°
- Modes:H1, H2, H3, ECO
Our verdict“Ideal for those who prioritize safety, coverage, and adjustable control in large indoor spaces.”
How We Picked
To select the best space heaters for large rooms, I evaluated each model based on heating capacity (wattage and coverage area), safety features, usability, and energy efficiency. I prioritized products with high wattage ratings, ideally 1500W or more, to ensure ample heat for large spaces. Ease of use, including thermostats and remote controls, was also essential, along with build quality and safety measures. Price was a factor, but only when balanced with performance and durability. The rankings reflect a combination of these criteria, focusing on models that deliver reliable, safe, and efficient heating for large rooms.Factors to Consider When Choosing Space Heater For Large Room
Choosing a space heater for a large room requires balancing several key factors. Power output determines how effectively the heater can warm a large space, but higher wattage often means increased energy costs. Coverage area is equally important; selecting a heater rated for the size of your room ensures efficient heating without waste. Safety features like tip-over switches and overheat protection are critical, especially in larger, more frequented spaces. Additional features such as thermostats, oscillation, and remote controls can improve comfort and convenience. Lastly, consider the energy efficiency and long-term costs, not just upfront price, to find a heater that offers the best value over time.Power and Coverage
The most vital aspect of a heater for large rooms is its power output. Heaters rated at 1500W or higher are generally best suited for spaces over 300 square feet. A model with a higher wattage can deliver more heat quickly and maintain warmth more evenly across expansive areas. However, higher wattage models tend to consume more electricity, so balancing power with energy efficiency is wise. Always check the specified coverage area to ensure the heater can handle your space without requiring multiple units or overworking a single device.
Safety Features
Safety should never be overlooked, especially in larger spaces where heaters are used for extended periods. Look for models with tip-over switches, overheat protection, and cool-touch exteriors. These features prevent accidents and reduce fire risk, even if the heater is left unattended. Infrared models, like EdenPURE, often incorporate safety benefits due to their design, but verification of safety certifications is essential across all options. Investing in a heater with comprehensive safety features ensures peace of mind while maintaining warm, secure environments.
Ease of Use and Controls
In large rooms, convenience features such as remote controls, digital thermostats, and oscillation can make a significant difference in comfort. A thermostat allows precise temperature regulation, preventing overheating and reducing energy costs. Oscillation helps distribute heat evenly when space permits, reducing cold spots. Remote controls provide easy adjustments from across the room, which can be especially useful in large spaces where reaching the unit isn’t always practical. Prioritizing these features can make large-room heating more effective and less of a hassle.
Energy Efficiency and Cost
While high wattage models heat large spaces effectively, they can also increase electricity bills. Infrared heaters tend to be more efficient because they directly warm objects and people rather than heating the air. Look for units with adjustable thermostats and timers to optimize energy use; these help prevent unnecessary operation when the room reaches your desired temperature. Over time, investing in a slightly more expensive, efficient model can translate into significant savings, especially if you plan to use the heater regularly during colder months.
Design and Portability
Heaters for large rooms come in various designs, from tall towers to wall-mounted panels. Consider how much space the unit will occupy and whether portability is necessary. A lightweight, wheeled model offers flexibility to move heat where it’s needed most, while built-in or wall-mounted options save space. Also, think about aesthetics—some options blend better with modern decor. Durable, well-built units tend to last longer, making initial investment worthwhile if you want a reliable, permanent heating solution.
Frequently Asked Questions
How do I know if a heater is powerful enough for my large room?
The key is to match the heater’s wattage and coverage area to your room size. Typically, 1500W heaters are suitable for spaces up to around 300 square feet, but larger rooms may require multiple units or models with higher wattage. Always check the manufacturer’s recommended coverage and consider ceiling height, insulation, and climate conditions, which can affect heating efficiency. A heater rated for slightly more space than your room size can help maintain consistent warmth without straining the unit.
Are infrared heaters better for large rooms than convection models?
Infrared heaters often provide more efficient and direct warmth, especially in large spaces, because they warm objects and people rather than just the air. This can lead to quicker, more comfortable heat with potentially lower energy costs over time. However, infrared models tend to be more expensive upfront and may have limited coverage if not sized appropriately. Convection heaters, on the other hand, warm the entire space more evenly but might consume more energy for the same large-area heating. Your choice depends on your specific needs and budget.
What safety features should I prioritize in a large-room space heater?
Safety features like tip-over switches, overheat protection, and cool-to-touch surfaces are essential in large-room heaters since they often run for longer periods. Tip-over switches automatically shut off the heater if it falls, preventing fire hazards. Overheat protection prevents the unit from reaching unsafe temperatures, while cool-touch exteriors reduce burn risks. For added peace of mind, look for models with certifications from recognized safety organizations and features like automatic shutoff timers or child lock functions if needed.
How much will running a large-room heater increase my electricity bill?
The cost depends on the heater’s wattage, usage time, and your local electricity rates. A 1500W heater running continuously for 8 hours can consume about 12 kWh, which may add a few dollars to your daily electricity bill, depending on rates. Using a thermostat and timer can significantly reduce unnecessary energy consumption by turning off the heater once the desired temperature is reached or after a set period. Infrared heaters tend to be more efficient, so they might offer lower operating costs over time compared to traditional convection units.
Is it better to get a portable heater or a fixed wall-mounted unit for large rooms?
Portability offers flexibility, allowing you to direct heat where it’s needed most and move the unit between rooms. This can be advantageous if you want to heat different large spaces over time or adjust based on occupancy. Wall-mounted units save space and provide a cleaner look but are less versatile once installed. The choice depends on your room layout, whether you prefer a permanent or flexible setup, and your aesthetic preferences. Both options can be effective, but ensure the size and power match your room’s needs.
Conclusion
For those seeking the best overall performance, the DREO Space Heater for Large Rooms offers reliable, powerful heating with essential safety features. Budget-conscious buyers will appreciate the DREO 25 Inch Electric Space Heater, which balances cost and efficiency. Premium users aiming for advanced features and infrared technology should consider the EdenPURE CopperPLUS heater. Beginners or those new to space heaters might favor models with remote control and simple operation, like the 25-inch oscillating model. Ultimately, choosing the right heater depends on your room size, safety priorities, and budget, but these options cover a broad spectrum of needs to ensure a warm, comfortable large space.
