Quick Intro: Choosing the right 240V electric heater depends on the application — space heating vs. on-demand hot water, installation location, and electrical capacity. Below is a quick comparison of the five selected 240V heaters to help identify options for garages, workshops, rooms, or point-of-use water heating.
| Product | Type | Key Feature |
|---|---|---|
| Comfort Zone CZ220 | Ceiling-Mount Space Heater | Hard-wired, fan-forced, adjustable louvers |
| Dr Infrared Heater DR-988A | Garage/Shop Space Heater | High-power 5600W with NEMA 6-30P cord |
| Cadet Com-Pak CSC202TW | Wall-Mount Electric Wall Heater | Integrated thermostat, fast coil heating |
| Rheem RTEX-24 | Tankless Electric Water Heater | 24kW self-modulating unit for multiple outlets |
| EcoSmart ECO 11 | Compact Tankless Water Heater | Self-modulating, point-of-use sizing with digital temp control |
Comfort Zone Hard-Wired Ceiling Mount Garage Heater CZ220
This ceiling-mount, fan-forced heater is built for garages, workshops, and commercial areas where floor space is limited. The hard-wired 240V configuration delivers robust heating while installed overhead to free floor area.
Key design elements include heavy-gauge steel construction for durability in poorly insulated spaces, louvers and an adjustable mounting angle for precise airflow direction, and integrated thermal cut-out for overheat protection. The fan-forced distribution helps spread heat quickly across larger, open areas.
Installation requires appropriate electrical wiring for a hard-wired 240V heater and secure ceiling mounting. The unit’s ETL compliance supports safety and code expectations for commercial-style applications.
Dr Infrared Heater DR-988A Garage Shop 208/240V
The DR-988A is a high-power option designed for garages and shops that require strong, continuous heat. It operates at 208/240V and consumes up to 5600 watts, delivering rapid heating for larger, draft-prone spaces.
Electrical requirements include a NEMA 6-30P plug and corresponding receptacle (NEMA 6-30R) rated for 250V/30A. The included cord and plug configuration simplifies connection when the correct outlet is available.
Features focus on straightforward operation and reliable power delivery for garage use. Verify your circuit capacity and outlet type before purchasing to ensure compatibility with the unit’s 240V, 30A requirement.
Cadet Com-Pak Electric Wall Heater CSC202TW
The Cadet Com-Pak is a compact wall-mounted electric heater with an integrated thermostat designed for rooms up to about 200 sq. ft. It offers quick coil heating and an efficient, quiet fan to spread warmth.
This model supports 240/208V operation and includes safety features that automatically shut the heater off if temperatures exceed safe levels. Ceiling installation can be possible for lower-watt models, expanding placement flexibility in small spaces.
Its design emphasizes fast heat-up times and simple control with the complete unit and thermostat included. Ideal for bedrooms, offices, or small workshops where a discreet wall-mounted solution is preferred.
Rheem RTEX-24 Electric Tankless Water Heater
The Rheem RTEX-24 is a 24kW 240V electric tankless water heater designed for whole-house or multi-point applications. It features self-modulating power control to match heating output to demand.
Users can set desired temperatures via an on-unit dial and digital display. The 24kW capacity supports higher flow rates, advertised up to 5.9 GPM under appropriate inlet temperature conditions, making it suitable for simultaneous showering and appliance use in warmer climates or with pre-heated water.
Installation requires proper 240V electrical service and professional plumbing/electrical setup to meet the unit’s amperage and safety requirements. The RTEX line focuses on continuous hot water delivery without a storage tank and precise temperature control.
EcoSmart ECO 11 Electric Tankless Water Heater
The EcoSmart ECO 11 is a compact, self-modulating tankless water heater rated for 240V circuits with a 13kW input. It’s optimized for point-of-use or single-fixture applications where space savings and efficiency matter.
Key features include continuous on-demand hot water, digital temperature control for +/-1 degree consistency, and a compact footprint allowing wall or near-fixture installation. The self-modulating technology adjusts power draw to match flow, improving efficiency.
Amperage draw is notable for planning: the ECO 11 requires sufficient 240V circuit capacity (check breaker and wire sizing). It’s well suited for sinks, small bathrooms, or temperate climates where required flow rates are modest.
Buying Guide: Choosing The Right 240V Electric Heater
This guide covers electrical, installation, performance, and application considerations to help match a 240V heater to your needs.
Define The Application
- Space Heating (Garage, Workshop, Room): Look for fan-forced or infrared models rated for area size, ceiling vs. wall or portable options, and durable construction for unconditioned spaces.
- Point-Of-Use Water Heating: Choose lower kW tankless models (e.g., 11–14kW) for single fixtures; higher kW (24kW+) for whole-house or multiple simultaneous points.
Electrical Capacity And Compatibility
- Verify your home’s panel and circuit breakers. High-power 240V heaters often require dedicated circuits (30A, 40A, 60A, depending on kW).
- Confirm plug/receptacle type. Some space heaters use a NEMA 6-30P plug; others are hard-wired and need a junction box and proper breaker.
- Wire gauge must match the amperage (e.g., 6 AWG for some 60A loads). Always consult an electrician for permanent installations.
Heating Capacity And Coverage
- For space heaters, match wattage to square footage: higher wattage for poorly insulated or open garages.
- For tankless water heaters, calculate required GPM and desired temperature rise. Larger kW units provide higher flow rates at greater temperature increases.
Installation And Mounting Options
- Ceiling Mount: Good for saving floor space; ensure structural support and clearance for louvers and airflow.
- Wall Mount: Best for rooms and small workshops; some models include thermostats for room control.
- Hard-Wired vs. Plug-In: Hard-wired units are more permanent and often required for high-power heaters; plug-in models require the correct receptacle and cord rating.
Safety Features And Certifications
- Look for thermal cut-out switches, overheat protection, and ETL/UL compliance.
- For garages or workshops, choose durable housings and placement away from flammable materials.
Efficiency And Control
- Self-Modulating Tankless Heaters: Adjust power to flow rate and help reduce energy use compared to fixed-output units.
- Thermostats And Digital Controls: Allow precise temperature control and improved comfort for space heaters or water heaters.
Maintenance And Serviceability
- Space heaters typically require minimal maintenance but keep vents and fans clean of dust and debris.
- For tankless water heaters, follow descaling recommendations in hard-water areas and check electrical connections periodically.
Comparison Considerations
- Power vs. Coverage: Compare wattage/kW to intended space or flow requirements rather than brand alone.
- Installation Cost: Add potential electrician or plumber fees for hard-wired heaters or high-amperage tankless installations.
- Flexibility: Plug-in units with matching receptacles are easier to relocate than hard-wired or permanently mounted units.