Dr Infrared Heater Dr-991 vs Dr-998: Which One Should You Buy?

A cold garage in winter makes every job slower, from wrenching under a car to sorting parts at the bench. Infrared heat that warms people directly, as both listings describe, fits that need, and the dr infrared heater dr-991 vs dr-998 comparison pits a fireplace-style heater against a dual-heating portable heater. The two run at 1500W and each adds a humidifier, but they differ in form, movement, controls and stated warranty.

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Example heaters

1

DR. INFRARED HEATER DR-998

DR. INFRARED HEATER·9.7/10 Shop Score

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The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1500W dual-heating infrared space heater with humidifier, oscillation, remote control, thermostat and wheels, weighing 26.0 pounds.

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Pros

• Dual Infrared Quartz Tube plus PTC heating system
• Oscillation, stated to distribute warm air evenly across the room
• Cool-mist ultrasonic humidifier plus lifetime washable filter
• 3 years limited parts and components warranty stated

Cons

• No safety listing such as ETL is stated
• 26.0 pounds, heavier than the DR-991 example
• No cord length is stated in the listing
• Dual-heating warmth claim is the maker's claim, not a measured figure

2

DR. INFRARED HEATER DR-991 Portable Electric

DR. INFRARED HEATER·9.6/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1500W portable electric fireplace space heater with humidifier, remote, 3D flame effect and ETL listing, weighing 19.4 pounds.

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Pros

• ETL listed with tip-over and overheat protection
• 3D flame effect with 2 adjustable brightness levels
• Built-in humidifier plus 3 heat settings and a 12-hour timer
• 19.4 pounds with a 6-foot cord for easy moving

Cons

• No warranty term is stated
• No oscillation feature is stated
• Tall 36.8 inch fireplace form needs floor space
• No washable filter is stated

Side by side: dr infrared heater dr-991 vs dr-998

We copy each listing’s rated specs exactly as the manufacturer gives them; as of 30 October 2026.

Heat and form

The two examples run at 1500W, so neither side wins on wattage from the listings. The DR-991 example is a freestanding fireplace heater with a 3D flame effect and 2 adjustable brightness levels, in a tall 14.2 inches x 14.2 inches x 36.8 inches body. The DR-998 example is a portable heater with wheels in a compact 16.0 inches x 11.0 inches x 16.0 inches body, using a dual Infrared Quartz Tube plus PTC system that the listing claims gives 60% more warmth than standard 1500W heaters. That claim is the maker’s claim, not a measured result, so it does not settle which side heats better.

Humidifier and air

The two examples include a humidifier, so dry winter air is addressed on either side. The DR-991 example lists a built-in humidifier alongside its flame effect and heat settings. The DR-998 example lists a cool-mist ultrasonic humidifier plus a lifetime washable filter, and adds oscillation to spread warm air evenly. Oscillation is stated only for the DR-998 example, so even heat distribution is a DR-998 advantage on the listings, while the flame effect is a DR-991 advantage.

Controls and safety

The two examples include a remote control, a thermostat and a timer. The DR-991 example lists 3 heat settings (High, Low, Auto) and a 12-hour timer, and states a standard 120V outlet with a 6-foot cord. The DR-998 example lists a digital thermostat from 50°F to 85°F and a timer from 1 hour to 12 hours, with no voltage or cord length stated. On safety, the two examples state tip-over and overheat protection, and the DR-998 example adds no exposed heating elements, but only the DR-991 example states an ETL listing. For circuit questions, use a licensed electrician rather than guessing at wiring.

Which side fits your garage

Choose a DR-991 if

You want a fireplace look with a flame effect, a lighter 19.4 pound body to move, and an ETL listing. The tall form needs floor space, and the listing pairs the humidifier with a 12-hour timer.

Choose a DR-998 if

You want oscillation, dual heating, wheels for moving between rooms, and a stated warranty term. The compact body has wheels for moving it, and the listing adds a lifetime washable filter and a cool-mist humidifier.

Garage Fit Check

• The DR-991 example measures 14.2 inches x 14.2 inches x 36.8 inches, so plan floor space for a tall fireplace form, not a bench top.
• The DR-998 example measures 16.0 inches x 11.0 inches x 16.0 inches with wheels, so it moves between rooms.
• The two examples add a humidifier, so plan water refills as part of regular use.
• The DR-991 example plugs into a standard 120V outlet with a 6-foot cord, so plan outlet distance before placing it.
• Keep flammable material clear of either heater and keep the area around each unit clear.

FAQ: garage tools

Can an infrared heater heat a garage?

These examples are supplemental and zone heaters, not whole-house systems: the DR-991 example is described as supplemental heat, and the DR-998 example as zone heating for the rooms used most. For a garage, the listings position them as warming the work area, not as a replacement for a full heating system.

Do both models have humidifiers?

Yes. The DR-991 example lists a built-in humidifier, and the DR-998 example lists a cool-mist ultrasonic humidifier. The DR-998 example also lists a lifetime washable filter, which the DR-991 example does not state.

Which model has oscillation?

Only the DR-998 example states oscillation, to spread warm air evenly across the room. The DR-991 example states no oscillation feature, so even distribution is a DR-998 advantage on the listings.

Does either model need special wiring?

The DR-991 example plugs into a standard 120V outlet, so no special wiring is stated for that side. The DR-998 example states no voltage, so its power needs are unclear from its listing; for circuit questions, use a licensed electrician.

Related: infrared garage heater, 120V garage heater, electric garage heater and garage heaters.