Outdoor Infrared Heaters
Quiet, odor-free electric heat that warms people — not the air. Keep your patio, pergola or restaurant terrace comfortable from fall through winter, without the hiss, fumes or upkeep of gas.
Get a Free QuoteCompare ModelsHeat that doesn't blow away
A medium-wave quartz element emits infrared energy that is absorbed only by solid objects — people, furniture, the floor — instead of heating the surrounding air. Warmth is distributed evenly and stays put on breezy, drafty evenings, and the element gives off a soft, barely-there glow rather than the harsh red glare of short-wave halogen heaters.
- Instant warmthFlip it on and feel it — no pre-heat time.
- Silent & cleanNo noise, odor, flame or emissions; no UV light.
- Indoor or outdoorUL listed for both, IPX4 weather rated.
- Low maintenanceNo burners, valves or igniters — just wipe clean.
Three series for every space
All three run on 208, 240, 277 or 480V (SL also in 120V) and come in a wide range of wattages and finishes. Not sure which fits? Send us your dimensions and we'll lay it out for you.
W-Series · Single Element
The versatile all-rounder — even, comfortable coverage with a clean, low profile.
- Power
- 2,000 · 2,500 · 3,000 · 4,000 W
- Lengths
- 39" and 61-¼"
- Mounting
- Up to 11' high · surface, flush or pole
- Finishes
- Stainless, 6 colors or custom RAL
WD-Series · Dual Element
Two elements for more intense heat — ideal for high ceilings, larger areas and commercial patios.
- Power
- 3,000 · 4,000 · 5,000 · 6,000 W
- Lengths
- 33", 39" and 61-¼"
- Mounting
- Up to 14' high · half/full power option
- Finishes
- Stainless, 6 colors or custom RAL
SL-Series · Slimline
An ultra-narrow, modern profile with a T-slot back for flexible surface mounting.
- Power
- 1,600 · 2,400 · 3,000 · 4,000 W
- Lengths
- 29.5", 42.5" and 63.5"
- Mounting
- Up to 11' high · surface mount only
- Finishes
- Stainless, Bronze, All-Black Shadow™
How much area does one heater cover?
Typical coverage for the dual-element WD-Series. Covered, enclosed or sheltered spaces usually exceed these figures; very cold or windy sites may see less.
Full specifications
W-Series single element — all models
| Model | Part # | Length | Watts | Volts | Amps |
|---|---|---|---|---|---|
| W-2024 | 21-1055 | 39" | 2,000 | 240V | 8.3 |
| W-2028 | 21-1060 | 39" | 2,000 | 208V | 10 |
| W-2048 | 21-1065 | 39" | 2,000 | 480V | 4 |
| W-2027 | 21-1075 | 39" | 2,000 | 277V | 7 |
| W-2524 | 21-1080 | 39" | 2,500 | 240V | 10.4 |
| W-2528 | 21-1085 | 39" | 2,500 | 208V | 12 |
| W-2548 | 21-1090 | 39" | 2,500 | 480V | 5 |
| W-2527 | 21-1095 | 39" | 2,500 | 277V | 9 |
| W-3024 | 21-1100 | 61-¼" | 3,000 | 240V | 12.5 |
| W-3027 | 21-1105 | 61-¼" | 3,000 | 277V | 11 |
| W-3028 | 21-1110 | 61-¼" | 3,000 | 208V | 14 |
| W-3048 | 21-1115 | 61-¼" | 3,000 | 480V | 6 |
| W-4024 | 21-1125 | 61-¼" | 4,000 | 240V | 16.7 |
| W-4027 | 21-1130 | 61-¼" | 4,000 | 277V | 14 |
| W-4028 | 21-1135 | 61-¼" | 4,000 | 208V | 19 |
| W-4048 | 21-1140 | 61-¼" | 4,000 | 480V | 8.3 |
Brushed stainless standard. Add BR Bronze, BL Black, AL Almond, BE Beige, BI Biscuit or WI White to the part number for a colored body. Replacement elements available for every model.
WD-Series dual element — all models
| Model | Part # | Length | Watts | Volts | Amps |
|---|---|---|---|---|---|
| WD-3024 | 21-2000 | 33" | 3,000 | 240V | 12.5 |
| WD-3028 | 21-2010 | 33" | 3,000 | 208V | 14 |
| WD-3048 | 21-2020 | 33" | 3,000 | 480V | 6 |
| WD-3027 | 21-2030 | 33" | 3,000 | 277V | 11 |
| WD-4024 | 21-2100 | 39" | 4,000 | 240V | 16.7 |
| WD-4028 | 21-2110 | 39" | 4,000 | 208V | 19 |
| WD-4048 | 21-2120 | 39" | 4,000 | 480V | 8.3 |
| WD-4027 | 21-2130 | 39" | 4,000 | 277V | 14 |
| WD-5024 | 21-2200 | 39" | 5,000 | 240V | 20.8 |
| WD-5028 | 21-2210 | 39" | 5,000 | 208V | 24 |
| WD-5048 | 21-2220 | 39" | 5,000 | 480V | 10.4 |
| WD-5027 | 21-2230 | 39" | 5,000 | 277V | 18 |
| WD-6024 | 21-2300 | 61-¼" | 6,000 | 240V | 25 |
| WD-6028 | 21-2310 | 61-¼" | 6,000 | 208V | 28.8 |
| WD-6048 | 21-2320 | 61-¼" | 6,000 | 480V | 12.5 |
| WD-6027 | 21-2330 | 61-¼" | 6,000 | 277V | 21.7 |
Brushed stainless standard. Add BR Bronze, BL Black, AL Almond, BE Beige, BI Biscuit or WI White to the part number for a colored body. 5,000 W and 6,000 W models must be on their own relay when using solid state controls.
SL-Series Slimline — all models
| Model | Part # | Length | Watts | Volts | Amps |
|---|---|---|---|---|---|
| SL-1612 | 21-4990 | 29.5" | 1,600 | 120V | 13.3 |
| SL-1624 | 21-4995 | 29.5" | 1,600 | 240V | 6.7 |
| SL-1628 | 21-4997 | 29.5" | 1,600 | 208V | 7.7 |
| SL-2424 | 21-5000 | 42.5" | 2,400 | 240V | 10.0 |
| SL-2428 | 21-5010 | 42.5" | 2,400 | 208V | 11.5 |
| SL-2448 | 21-5020 | 42.5" | 2,400 | 480V | 5 |
| SL-2427 | 21-5030 | 42.5" | 2,400 | 277V | 8.7 |
| SL-3024 | 21-5040 | 63.5" | 3,000 | 240V | 12.5 |
| SL-3028 | 21-5050 | 63.5" | 3,000 | 208V | 14.4 |
| SL-3048 | 21-5060 | 63.5" | 3,000 | 480V | 6.3 |
| SL-3027 | 21-5070 | 63.5" | 3,000 | 277V | 10.8 |
| SL-4024 | 21-5080 | 63.5" | 4,000 | 240V | 16.7 |
| SL-4028 | 21-5090 | 63.5" | 4,000 | 208V | 19.2 |
| SL-4048 | 21-5100 | 63.5" | 4,000 | 480V | 6.3 |
| SL-4027 | 21-5110 | 63.5" | 4,000 | 277V | 10.8 |
Stainless standard. Add BR for anodized Bronze or BL for the All Black Slimline Shadow™ — same price for every finish.
From a simple switch to full smart-home dimming
Infratech is a UL 508 listed control manufacturer. Choose the level of control that fits your budget and space.
- On/Off SwitchLow-cost control for any single-element heater (120–277V, 20A max per switch). Wall plate, flush or weatherproof surface mount.
- Duplex / Stack SwitchFor dual-element heaters — run one element or both for half-power / full-power heat.
- INF Input RegulatorAdjustable output for single-element heaters up to 3,000 W (15A); cycles the heater for lower settings. One per heater.
- Solid State Relay PackageInfinite 0–100% intensity, multiple zones and optional 15 min–4 hr timers. Built per project, factory tested, NEMA 4 relay panel.
- Home Management Relay Panel0–10V integration with Lutron™, Crestron™, Control4™ and others — scenes, schedules and control from your phone.
Minimal clearances, clean installs
Heaters can be surface mounted to a wall or ceiling, recessed flush, or set on a freestanding pole. They are UL listed for mounting as low as 6' (7' recommended) and cUL listed from 8'. Swivel brackets are included with every heater.
Match your ceiling, beams or pergola
W & WD-Series
Brushed stainless steel, or six baked-on powder-coat colors over stainless for a fade- and corrosion-resistant finish. Virtually any Tiger Drylac RAL custom color is also available (non-refundable, about 3–4 weeks lead time).
For flush mounts, the frame is powder coated rather than the heater.
SL-Series Slimline
Stainless trim over a stainless-hue anodized body, anodized bronze, or the All-Black Slimline Shadow™. Same price for every finish. (SL heaters can't be painted.)
What will it cost to run?
Electric infrared is cheaper to buy and maintain than gas, and simple to budget: kilowatts × your utility rate.
Heat your space in 3 steps
Measure the area
Length, width and the height where heaters will mount.
Select the heaters
Pick the series, size, quantity, finish and mounting that fit the look and heat you want.
Choose the controls
Simple switches for value, or solid state zones and smart-home dimming for full control.
Before ordering, we confirm your service voltage (208V vs. 240V makes a big difference), the total amperage needed, and a layout of heaters and zones. Installation must be hard-wired by a licensed electrician per NEC and local code.
Frequently asked questions
Why electric infrared instead of a gas patio heater?
Electric infrared heaters are over 90% efficient, silent, and produce no odors, fumes or emissions, so they are safe indoors and out. There are no valves, igniters, burners or moving parts to service — just occasional cleaning. They also mount far closer to the ceiling than overhead gas units and can be dimmed from 0–100% with the right controls, while gas heaters only produce infrared at full fire.
What will it cost to run?
Multiply the heater's kilowatts by your utility rate. A 3,000 W (3 kW) heater at full power on a 13¢/kWh rate costs about 39¢ per hour. Use the calculator above with your own numbers.
How much warmth should I expect?
Testing by PG&E's Food Service Technology Center found a good patio heating install delivers about 3–7°F of perceived warmth at 60°F outside — more than 7° gets too warm for long sitting. Colder or windier spaces need more heat; covered or enclosed spaces need less.
Can I run heaters on 120 volts?
Only for small enclosed spots — about a 5' × 5' area (120V models top out around 1,600 W). For a real patio, a 240V circuit uses the same wiring, takes just two breaker spaces and heats a much larger area.
208V or 240V — does it matter?
Yes, a lot. A 240V heater on 208V power only produces about 60% of its rated output. Many newer homes and commercial buildings are 208V, so we confirm your service voltage before ordering. Models are available in 120, 208, 240, 277 and 480V.
How long do the quartz elements last?
Elements are rated for 5,000 hours of continuous use — typically years of normal patio use. Replacement elements are available for every model and swap in without replacing the fixture.
Can they connect to my smart home system?
Yes. Infratech's Home Management Relay Panel accepts a 0–10V DC signal from Lutron, Crestron, Control4 and similar systems for full intensity control, scenes and remote control from your phone. A simpler setup can switch the controller on/off and run timers.
Can the Slimline (SL) heater be recessed or painted?
No. The SL housing runs hotter because of its narrow profile, so it must be surface mounted and stays in its anodized finish (stainless, bronze or all-black). If you want a recessed, ceiling-flush look or a custom color, choose the W or WD-Series.
Will an SL heater put out as much heat as a W heater of the same wattage?
Yes — a watt is a watt. The SL's narrower reflector focuses the pattern slightly more toward the center.
Are they safe and certified?
W-Series heaters are UL and cUL listed (File E29825) for indoor and outdoor use, IPX4 rated, CE listed, and backed by a two-year warranty. Infratech is a UL 508 listed control manufacturer and heaters are made in the USA.
Add heat to your pergola or patio
We design and build motorized pergolas, louvered roofs and enclosures — and can plan heaters, wiring and controls into the same project so everything looks built-in. Send us your space and we'll recommend the right models and layout.
Call 281.720.7272 · 832.866.2626 · Showroom: Decorative Center of Houston, Suite 5002