Choosing the right heater for a roughly 1,000 square foot space requires balancing coverage, efficiency, installation complexity, and features like remote control or thermostat support. Below is a quick comparison of selected units to help narrow choices.
Product | Type | Coverage | Key Feature |
---|---|---|---|
DELLA Vario Series 18000 BTU Wifi Mini Split | Ductless Mini-Split | Up To 1,000 Sq.Ft | 21 SEER2, Heat Pump, Wi‑Fi |
DELLA Motto Series 18000 BTU Wifi Mini Split | Ductless Mini-Split | Up To 1,000 Sq.Ft | 19 SEER2, Pre-Charged, Alexa |
LG 18,000 BTU Window Air Conditioner With Heat | Window AC/Heater Combo | Approx 1,000 Sq.Ft | Window Install, 4-Way Deflection |
Comfort Glow Portable Infrared Quartz Heater | Portable Infrared Space Heater | Up To 1,000 Sq.Ft | Four Quartz Elements, Multiple Modes |
Duraflame Electric Log Set (Insert) | Electric Fireplace Insert | Up To 1,000 Sq.Ft | Realistic Flames, Remote |
DELLA Vario Series 18000 BTU Wifi Mini Split

This ductless mini‑split combines cooling and heating via a built‑in heat pump and inverter technology. It is rated at 18000 BTU and specified to service spaces up to 1,000 sq. ft. The unit advertises 21 SEER2 efficiency, pre-charged lines, and a full installation kit including copper lines and drain. It lists features such as multiple modes (heat/cool/dry), 4D airflow, Wi‑Fi control, and ability to operate in very cold outdoor temps down to −4°F.
Relevant features: energy efficient cooling, heat pump capable of operation to low outdoor temperatures, 4D airflow and smart modes for scheduling and comfort. Consider this if you want permanent ductless climate control with remote/wifi setup and higher seasonal efficiency.
DELLA Motto Series 18000 BTU Wifi Mini Split

This 18000 BTU mini‑split emphasizes 19 SEER2 efficiency with inverter technology and an included installation kit. It is AHRI certified and ETL listed. The unit supports Wi‑Fi, Alexa compatibility, and a pre‑charged heat pump line set that covers roughly 1,000 sq. ft. The manufacturer lists features such as I‑feel mode, eco energy saving, sleep mode, multiple fan speeds, turbo, and dehumidifying (dry) mode.
Relevant features: pre-charged refrigerant (R32), smart control, and multi‑mode operation. This model suits homeowners seeking a semi-permanent solution with improved efficiency and smart home integration for whole-room temperature management.
LG 18,000 BTU Window Air Conditioner With Heat

This LG unit is a window AC and supplemental heater combo rated for 18,000 BTU and intended to serve areas up to about 1,000 sq. ft. It operates on 230/208V and requires a specific LCDI plug (NEMA 6‑20). The unit provides 2 speeds for cooling, heating, and fan-only settings, plus 4‑way air deflection, a digital control panel, remote, 24‑hour timer, and washable filter.
Relevant features: dual cooling/heating capability without separate furnace or heat pump, simple window installation, and user controls like timer and filter reminder. Evaluate this option when a window-mounted, straightforward heat/cool solution is desired and 230/208V supply is available.
Comfort Glow Portable Infrared Quartz Heater

This electric infrared quartz heater advertises coverage for rooms up to 1,000 sq. ft. It uses four quartz heating elements with selectable power modes (ECO, 750W, 1500W) and a built‑in thermostat. The product lists 5,120 BTUs output and typical safety features including tip‑over and overheat protection, plus a child lock and remote.
Relevant features: instant radiant warmth that heats objects and people directly, multiple power levels for efficiency control, and portable placement. Good choice for supplemental or zonal heating where installing permanent equipment is not feasible or desired.
Duraflame Electric Log Set Insert With Infrared Flames

This Duraflame insert offers infrared heating and a realistic flame/log visual for installation into existing fireplaces. Rated to warm up to 1,000 sq. ft., it provides supplemental heating to reduce reliance on whole‑house HVAC. The unit includes remote control, adjustable thermostat, flame brightness and timer settings.
Relevant features: decorative flame effect with infrared heat, remote adjustment, and suitability as an insert for an existing fireplace. Useful when you prefer an aesthetic focal point combined with supplemental heating in open living spaces.
Buying Guide: How To Choose A Heater For 1,000 Sq Ft
Selecting the right heating solution for a space near 1,000 square feet depends on house layout, insulation, ceiling height, and whether you want portable, semi‑permanent, or permanent systems. Below are key considerations organized by comparison perspective.
Coverage And Heating Capacity
- BTU Versus Watts: For whole‑room coverage, higher BTU ratings (e.g., 12,000–18,000 BTU) or appropriately sized mini‑splits are common. Portable electric heaters give wattage (e.g., 1,500W) and can supplement but may not replace central systems for continuous whole‑space heating.
- Room Factors: Insulation, window area, ceiling height, and climate zone dramatically affect required capacity. Colder climates need more capacity; open floor plans reduce heating efficiency compared to closed rooms.
System Type And Installation
- Mini-Split Heat Pumps: Provide efficient heating and cooling, permanent installation, and zoned control. They require professional or experienced DIY installation for copper line and wall/condensate routing.
- Window Units: Simpler to install but require a suitable window and correct electrical supply (some large models use 230V). Good for rooms where wall/ceiling installation is impractical.
- Portable Heaters And Inserts: Best for supplemental heating and easy relocation. Electric fireplace inserts add ambience plus heat but need an existing fireplace opening.
Energy Efficiency And Operating Cost
- SEER2 And Heat Pump Efficiency: For mini‑splits, SEER2 and HSPF ratings indicate seasonal efficiency. Higher SEER2 yields lower cooling energy; heat pumps are more efficient than resistive electric in many climates.
- Electric Resistance vs Heat Pump: Electric resistance (infrared/quartz, log sets) converts electricity to heat at nearly 100% efficiency but typically costs more per unit heat than heat pumps where electricity and outdoor temp allow.
- Controls And Modes: Thermostats, ECO modes, timers, and remote/wifi controls help reduce runtime and energy use.
Safety And Certifications
- Certifications: Look for ETL, AHRI, or similar listings for reliability and tested performance.
- Safety Features: Tip‑over protection, overheat shutoff, cool-touch grills, and LCDI or GFCI protection where required are important for indoor electric heaters.
Comfort And Air Distribution
- Airflow & Deflection: Units with multi‑directional louvers or 4D airflow distribute heat more evenly in large spaces.
- Radiant vs Convective Heat: Infrared heaters heat objects and occupants directly and feel warm quickly; convective systems heat air and may require circulation for even temperatures.
Installation Complexity And Space Impact
- Permanent vs Portable: Mini‑splits and window units are more permanent, while portable quartz heaters and log sets are moveable. Consider available wall/window space and mounting constraints.
- Electrical Supply: Large window or mini‑split units may require 208/230V circuits and dedicated breakers. Confirm home electrical capacity before purchase.
Noise, Aesthetics, And Additional Features
- Noise Level: Inverter mini‑splits typically run quieter than portable forced‑fan heaters. Consider decibel levels if placement is near bedrooms or living areas.
- Aesthetics: Electric fireplaces and stoves add visual appeal; mini‑splits are low profile; window units are visible externally.
- Smart Controls: Wi‑Fi, Alexa or app control allow scheduling and remote temperature adjustments, improving convenience and potential energy savings.
Comparison Perspectives
- Cost To Install vs Operating Cost: Mini‑splits have higher upfront installation but better seasonal efficiency; electric resistance devices have lower installation cost but potentially higher long‑term operating costs in colder climates.
- Permanent Comfort vs Flexibility: Permanent systems deliver steady comfort and zoning; portable options offer flexibility for temporary use, supplemental heating, or targeted rooms.
- Visual And Lifestyle Fit: If ambiance matters, electric fireplace inserts add a decorative element. If minimal visual impact is preferred, slim wall or mini‑split units are discreet.
Use the above factors to prioritize what matters most for your space: efficiency, installation complexity, coverage, or ambience. Matching those priorities to the product type will result in a better long‑term heating solution for a ~1,000 sq. ft. area.