Choosing a 30 amp garage heater means matching power, outlet type, installation, and safety to your workspace. Below is a concise comparison of five heaters relevant to 30A-capable circuits or higher-watt applications. The reviews that follow summarize features, mounting options, and installation notes so you can compare quickly.
| Product | Brand | Key Feature |
|---|---|---|
| Dr Infrared Heater DR-988A Garage Shop | DR. INFRARED HEATER | 240V, 5600W, NEMA 6-30P Plug |
| Dura Heat EWH5510 Electric Forced Air | Dura Heat | 240V Hard-Wired, 5,000W, 30A Design |
| Newair 5600W Portable Electric Garage Heater | NewAir | 5600W Portable, Thermostat, Fan-Forced |
| TEMPWARE Garage Heater Electric 240V Hardwired | TEMPWARE | 5,000W Hardwired, Remote, Timer, ECO Mode |
| Comfort Zone Hard-Wired Ceiling Mount 5,000W | Comfort Zone | Ceiling Mount, 240V Hard-Wired, Fan-Forced |
Content Navigation
- Dr Infrared Heater DR-988A Garage Shop 208/240-Volt
- Dura Heat EWH5510 Electric Forced Air Heater
- Newair 5600W Portable Electric Garage Heater
- TEMPWARE Garage Heater Electric 240V, 5000-Watt Hardwired
- Comfort Zone Hard-Wired Ceiling Mount Garage Heater
- Buying Guide: Choosing The Right 30 Amp Garage Heater
Dr Infrared Heater DR-988A Garage Shop 208/240-Volt

The DR-988A is a high-power electric heater designed for 240V circuits and draws up to 5600 watts. It uses a NEMA 6-30P plug, which requires a matching NEMA 6-30R receptacle (30 amps at 250V). The unit is intended for garages and shops where a dedicated 30A outlet is available.
- Power Consumption: 5600-Watt at 240V (requires compatible circuit and outlet)
- Plug Type: NEMA 6-30P — ensure your receptacle is NEMA 6-30R
- Installation: Plug-in simplifies placement compared to hardwired units, but requires correct outlet
Dura Heat EWH5510 Electric Forced Air Heater

The Dura Heat EWH5510 is specified as a hard-wired 240V, 5,000W garage heater with a 30A design. It includes a remote control and an adjustable thermostat, and its 17,060 BTU rating targets larger garage spaces. Electrical work by a qualified electrician is recommended because of the hard-wired 30A requirement.
- Rated For: 5,000W / 30A hard-wired — professional installation required
- Controls: Remote control and LED thermostat (adjustable 45–99°F)
- Coverage: Designed to heat larger garages up to manufacturer-stated square footage
Newair 5600W Portable Electric Garage Heater

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The Newair 5600W is a portable fan-forced heater designed to warm spaces up to about 600 sq. ft. It delivers 5,600 watts of power and includes a thermostat with auto-fan control. Confirm the plug configuration and circuit rating before use; many 5600W units are intended for 240V service and may require a dedicated 30A or appropriate circuit.
- Output: 5,600W fan-forced heating with thermostat and auto-fan
- Design: Portable with carry handle and cord wrap, steel housing
- Installation Note: Verify outlet compatibility and circuit ampacity before plugging in
TEMPWARE Garage Heater Electric 240V, 5000-Watt Hardwired

TEMPWARE’s hardwired 5,000W garage heater includes remote control, ECO mode, timer, and overheat protection. At 5,000 watts on 240V, the current draw is about 20.8 amps, which sits below 30 amps but is frequently installed on 30A circuits for headroom and safety. The unit supports ceiling or wall mount and offers thermostat control for energy savings.
- Power Options: 3 heat settings (3,000 / 4,000 / 5,000W) and ECO mode
- Controls: Digital display, remote, and timer (1–12 hours)
- Safety: Overheat protection and built-in thermostat
Comfort Zone Hard-Wired Ceiling Mount Garage Heater

The Comfort Zone CZ220BK is a 5,000W hard-wired ceiling-mounted fan-forced heater designed to save floor space in workshops and garages. Constructed from heavy-gauge steel with adjustable louvers, it provides directional heat distribution. Like other 240V 5,000W units, confirm circuit capacity and professional hardwiring for safe operation.
- Mounting: Ceiling-mount to preserve floor workspace
- Construction: Heavy-gauge steel body with adjustable louvers
- Operation: Fan-forced distribution and thermal cut-out safety feature
Buying Guide: Choosing The Right 30 Amp Garage Heater
This guide highlights the electrical, installation, performance, and safety factors to weigh when selecting a 30A-class heater for a garage, workshop, or similar space.
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Electrical Compatibility And Circuit Requirements
Confirm the heater’s rated voltage and amp draw. A typical 5,000–5,600W heater on 240V consumes about 20.8–23.3 amps; some manufacturers design plugs for 30A receptacles for safety margin. Units advertised with a NEMA 6-30P or “30A design” require a matching outlet or hard-wiring to a dedicated 30A circuit.
Plug-In Versus Hard-Wired
Plug-in heaters with a NEMA 6-30P provide portability and easier replacement but require the correct outlet. Hard-wired units require professional installation but often offer neater installation and may integrate better with wall/ceiling mounting and controls.
Mounting And Airflow
Decide between portable, wall-mounted, or ceiling-mounted models. Ceiling mounts free floor space and reduce trip hazards; portable heaters allow repositioning. Choose fan-forced units for faster room-wide distribution; directional louvers help target a workbench.
Thermostat, Controls, And Energy Features
Thermostat control, timers, and ECO modes reduce runtime and save energy. Remote control and digital displays add convenience. For larger spaces, multi-stage heat or adjustable wattage settings improve comfort and efficiency.
Safety Features
Look for overheat protection, thermal cut-out, ETL/UL listings, and sturdy steel construction. For garage environments, dust and moisture considerations matter—select units rated for the intended indoor conditions and mount them away from combustible materials.
Heating Capacity And Coverage
Manufacturers estimate coverage in square feet based on insulation levels. Use conservative estimates for poorly insulated garages and consider higher wattage or supplemental heating for very cold climates. Insulation and sealing the space have a major impact on effective heating.
Noise And Motor Durability
Fan-forced heaters produce some noise. For work areas where noise is a concern, review fan specifications and user feedback on durability. Commercial-grade motors and powder-coated steel housings generally last longer in workshop conditions.
Installation Practicalities And Cost Of Upgrades
If your garage lacks a 30A outlet or proper 240V circuit, factor electrician costs for installing a dedicated circuit, NEMA receptacle, or hardwiring. Confirm local electrical codes and permit requirements.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.
Comparison Perspectives
- Electrical Perspective: Verify amp draw vs. circuit ampacity and plug type (NEMA 6-30 vs hard-wired).
- Functional Perspective: Choose between portability (Newair, DR-988A plug-in) and permanent installation (Dura Heat, TEMPWARE, Comfort Zone).
- Safety/Efficiency Perspective: Prioritize units with automatic shutoff, thermostats, and certifications for safer, more efficient operation.
- Space And Mounting Perspective: Ceiling-mounted heaters free floor area; portable units allow repositioning for spot heating.