Infratech Slimline SL40 4000W Single Element Infrared Electric Patio Heater
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Description
The Infratech Slimline SL40 from the SL Series is a high-output, single element infrared electric patio heater designed for larger covered outdoor spaces that require stronger directional warmth in a sleek, low-profile form. With a 4000 watt output and medium wave infrared technology, the SL40 delivers expanded heat coverage while maintaining the refined Slimline aesthetic.
Constructed with anodized aluminum housing and a medium wave quartz tube element, the SL40 delivers efficient radiant heat without visible flame, odors, or emissions. Its slim architectural profile integrates seamlessly into modern residential and commercial outdoor environments.
Need a custom solution?
We offer a complimentary heat layout design service through Infratech. Our team can evaluate your patio dimensions, mounting heights, and usage goals to recommend optimal heater placement and the most effective configuration for your space. Contact our TTH Concierge team to discuss project-specific requirements.
Proper mounting height and electrical planning are essential for optimal performance. Control options are required and must be selected separately based on your project requirements.
How to Choose the Right Heater Configuration
The Infratech SL40 is designed for larger covered patios, outdoor lounges, and dining areas where a slim architectural profile and stronger radiant heat output are preferred. Proper mounting height and voltage selection are essential for performance and safety.
| Recommended Use | Covered patios, outdoor dining areas, and larger seating spaces requiring high output directional heat |
| Heat Coverage | Approximately 100 square feet when mounted at the recommended height |
| Recommended Mounting Height | 8 to 10 feet |
| Voltage Options | 208V, 240V, or 277V. Voltage must match your existing electrical supply |
| Installation Type | Hardwired installation required for permanent installations |
Important: Voltage must match your existing electrical supply. Confirm with a licensed electrician if you are unsure.
Optional accessories available:
- Infratech Solid State Control Packages (Simple Plus)
- Infratech Universal Control Panels (Smart)
- Infratech Home Management Control Panels (Smart Plus)
Features
- Single element infrared electric heater with focused radiant heat output
- 4000 watt heating capacity
- Medium wave infrared technology
- Ideal for mounting heights of 8 to 10 feet
- Approximate heat coverage of 100 square feet in average conditions
- Slimline profile designed to visually blend into refined outdoor spaces
- Anodized aluminum housing with stainless steel trim
- Available in two finish options: Black or Stainless Steel
- Wall or ceiling mounting options
- Mounting brackets included
- UL listed for indoor or outdoor use when installed per manufacturer guidelines
- IPX4 rated for covered outdoor environments
- Made in the USA
- 3 year manufacturer warranty
Specs
INFRATECH SL SERIES SINGLE ELEMENT INFRARED ELECTRIC PATIO HEATER SPEC SHEET
INFRATECH SL SERIES SINGLE ELEMENT INFRARED ELECTRIC PATIO HEATER MANUAL
| Series | SL Series (Slimline) |
| Model | SL40 |
| Length | 63.5 inches |
| Height | 5.69 inches |
| Depth (Projection from Mounting Surface) | 4.75 inches |
| Weight | 17 lbs |
| Heating Area | Approximately 100 sq ft |
| Infrared Technology | Medium Wave |
| Standard Wattage | 4000 watts |
| Voltage Options | 208V, 240V, 277V |
| Amperage | 19.23 amps (208V), 16.67 amps (240V), 14.44 amps (277V) |
| Minimum Mounting Height | 96 inches |
| Maximum Mounting Height | 120 inches |
| Mounting Options | Wall mount, ceiling mount |
| Finish Options | Black, Stainless Steel |
| Housing Material | Anodized aluminum with stainless steel trim |
| IP Rating | IPX4 |
| Application | Residential and Commercial |
| Warranty | 3 years |
| Country of Origin | Made in USA |
California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
FAQ
DO I NEED TO PURCHASE CONTROLS SEPARATELY?
Yes. All Infratech SL Series heaters require a compatible control to operate. Controls are selected based on your heater configuration, electrical setup, and desired functionality. If you are unsure which control is right for your space, our TTH Concierge team can assist.
WHICH CONTROL OPTION IS BEST FOR MOST HOMEOWNERS?
Most residential installations use a basic on/off switch or an input regulator. Larger patios or multi-heater layouts often benefit from custom control panels. Smart controls are recommended for homes with existing smart home systems or when app-based control is desired.
WHAT VOLTAGE SHOULD I CHOOSE?
Voltage must match your existing electrical supply. Most residential installations use 240V. SL Series models are available in 120V, 208V, 277V and 240V configurations depending on model. Always confirm voltage requirements with a licensed electrician prior to ordering.
CAN THIS HEATER BE USED INDOORS?
Yes. Infratech SL Series heaters are UL listed for both indoor and outdoor use when installed according to manufacturer guidelines and local building codes.
HOW MUCH AREA DOES THE SL SERIES HEAT?
Heat coverage depends on the specific model, wattage, and mounting height. SL Series heaters are designed to provide focused, directional warmth rather than ambient heating. Multiple heaters may be required for larger spaces or open layouts.
WHAT IS THE RECOMMENDED MOUNTING HEIGHT?
Recommended mounting height varies by model but generally ranges from 6 to 10 feet. Each product page lists the optimal mounting height for that specific heater.
CAN THE HEATER BE MOUNTED ON A WALL OR CEILING?
Yes. SL Series heaters can be wall mounted or ceiling mounted. Mounting brackets are included. If a flush mount installation is required, Infratech W or WD Series heaters are the appropriate solution.
IS THE HEATER WEATHER RESISTANT?
Yes. Infratech SL Series heaters are rated IPX4 and are suitable for covered outdoor installations. They are designed to withstand typical outdoor conditions when installed properly.
WHAT FINISH OPTIONS ARE AVAILABLE?
SL Series heaters are available in stainless steel and black.
ARE ALL FINISHES RETURNABLE?
Powder-coated finishes are non-returnable (black). Stainless steel finishes may be subject to standard return guidelines. Please review our Return & Refund Policy prior to ordering.
IS PROFESSIONAL INSTALLATION REQUIRED?
Installation should be performed by a qualified electrician. Proper electrical planning and mounting height are critical for safety and performance.
WHERE ARE INFRATECH HEATERS MADE?
All Infratech heaters are proudly made in the USA.
WHAT WARRANTY IS INCLUDED?
Infratech SL Series heaters include a 3-year manufacturer warranty.
Delivery
Estimated delivery time is 2 weeks. Curbside freight delivery only. Customer is responsible for unloading and placement. See full Shipping Policy for details.
Returns Policy
Infratech custom powder-coated units are not eligible for return. Stainless, Marine Grade Stainless, and 8 standard colors (Almond, Beige, Biscuit, Black, Bronze, Copper, Grey, and White) are returnable within 30 days, but subject to applicable fees. See full Return Policy for details.
Choose options
Description
The Infratech Slimline SL40 from the SL Series is a high-output, single element infrared electric patio heater designed for larger covered outdoor spaces that require stronger directional warmth in a sleek, low-profile form. With a 4000 watt output and medium wave infrared technology, the SL40 delivers expanded heat coverage while maintaining the refined Slimline aesthetic.
Constructed with anodized aluminum housing and a medium wave quartz tube element, the SL40 delivers efficient radiant heat without visible flame, odors, or emissions. Its slim architectural profile integrates seamlessly into modern residential and commercial outdoor environments.
Need a custom solution?
We offer a complimentary heat layout design service through Infratech. Our team can evaluate your patio dimensions, mounting heights, and usage goals to recommend optimal heater placement and the most effective configuration for your space. Contact our TTH Concierge team to discuss project-specific requirements.
Proper mounting height and electrical planning are essential for optimal performance. Control options are required and must be selected separately based on your project requirements.
How to Choose the Right Heater Configuration
The Infratech SL40 is designed for larger covered patios, outdoor lounges, and dining areas where a slim architectural profile and stronger radiant heat output are preferred. Proper mounting height and voltage selection are essential for performance and safety.
| Recommended Use | Covered patios, outdoor dining areas, and larger seating spaces requiring high output directional heat |
| Heat Coverage | Approximately 100 square feet when mounted at the recommended height |
| Recommended Mounting Height | 8 to 10 feet |
| Voltage Options | 208V, 240V, or 277V. Voltage must match your existing electrical supply |
| Installation Type | Hardwired installation required for permanent installations |
Important: Voltage must match your existing electrical supply. Confirm with a licensed electrician if you are unsure.
Optional accessories available:
- Infratech Solid State Control Packages (Simple Plus)
- Infratech Universal Control Panels (Smart)
- Infratech Home Management Control Panels (Smart Plus)
Features
- Single element infrared electric heater with focused radiant heat output
- 4000 watt heating capacity
- Medium wave infrared technology
- Ideal for mounting heights of 8 to 10 feet
- Approximate heat coverage of 100 square feet in average conditions
- Slimline profile designed to visually blend into refined outdoor spaces
- Anodized aluminum housing with stainless steel trim
- Available in two finish options: Black or Stainless Steel
- Wall or ceiling mounting options
- Mounting brackets included
- UL listed for indoor or outdoor use when installed per manufacturer guidelines
- IPX4 rated for covered outdoor environments
- Made in the USA
- 3 year manufacturer warranty
Specs
INFRATECH SL SERIES SINGLE ELEMENT INFRARED ELECTRIC PATIO HEATER SPEC SHEET
INFRATECH SL SERIES SINGLE ELEMENT INFRARED ELECTRIC PATIO HEATER MANUAL
| Series | SL Series (Slimline) |
| Model | SL40 |
| Length | 63.5 inches |
| Height | 5.69 inches |
| Depth (Projection from Mounting Surface) | 4.75 inches |
| Weight | 17 lbs |
| Heating Area | Approximately 100 sq ft |
| Infrared Technology | Medium Wave |
| Standard Wattage | 4000 watts |
| Voltage Options | 208V, 240V, 277V |
| Amperage | 19.23 amps (208V), 16.67 amps (240V), 14.44 amps (277V) |
| Minimum Mounting Height | 96 inches |
| Maximum Mounting Height | 120 inches |
| Mounting Options | Wall mount, ceiling mount |
| Finish Options | Black, Stainless Steel |
| Housing Material | Anodized aluminum with stainless steel trim |
| IP Rating | IPX4 |
| Application | Residential and Commercial |
| Warranty | 3 years |
| Country of Origin | Made in USA |
California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
FAQ
DO I NEED TO PURCHASE CONTROLS SEPARATELY?
Yes. All Infratech SL Series heaters require a compatible control to operate. Controls are selected based on your heater configuration, electrical setup, and desired functionality. If you are unsure which control is right for your space, our TTH Concierge team can assist.
WHICH CONTROL OPTION IS BEST FOR MOST HOMEOWNERS?
Most residential installations use a basic on/off switch or an input regulator. Larger patios or multi-heater layouts often benefit from custom control panels. Smart controls are recommended for homes with existing smart home systems or when app-based control is desired.
WHAT VOLTAGE SHOULD I CHOOSE?
Voltage must match your existing electrical supply. Most residential installations use 240V. SL Series models are available in 120V, 208V, 277V and 240V configurations depending on model. Always confirm voltage requirements with a licensed electrician prior to ordering.
CAN THIS HEATER BE USED INDOORS?
Yes. Infratech SL Series heaters are UL listed for both indoor and outdoor use when installed according to manufacturer guidelines and local building codes.
HOW MUCH AREA DOES THE SL SERIES HEAT?
Heat coverage depends on the specific model, wattage, and mounting height. SL Series heaters are designed to provide focused, directional warmth rather than ambient heating. Multiple heaters may be required for larger spaces or open layouts.
WHAT IS THE RECOMMENDED MOUNTING HEIGHT?
Recommended mounting height varies by model but generally ranges from 6 to 10 feet. Each product page lists the optimal mounting height for that specific heater.
CAN THE HEATER BE MOUNTED ON A WALL OR CEILING?
Yes. SL Series heaters can be wall mounted or ceiling mounted. Mounting brackets are included. If a flush mount installation is required, Infratech W or WD Series heaters are the appropriate solution.
IS THE HEATER WEATHER RESISTANT?
Yes. Infratech SL Series heaters are rated IPX4 and are suitable for covered outdoor installations. They are designed to withstand typical outdoor conditions when installed properly.
WHAT FINISH OPTIONS ARE AVAILABLE?
SL Series heaters are available in stainless steel and black.
ARE ALL FINISHES RETURNABLE?
Powder-coated finishes are non-returnable (black). Stainless steel finishes may be subject to standard return guidelines. Please review our Return & Refund Policy prior to ordering.
IS PROFESSIONAL INSTALLATION REQUIRED?
Installation should be performed by a qualified electrician. Proper electrical planning and mounting height are critical for safety and performance.
WHERE ARE INFRATECH HEATERS MADE?
All Infratech heaters are proudly made in the USA.
WHAT WARRANTY IS INCLUDED?
Infratech SL Series heaters include a 3-year manufacturer warranty.
Delivery
Estimated delivery time is 2 weeks. Curbside freight delivery only. Customer is responsible for unloading and placement. See full Shipping Policy for details.
Returns Policy
Infratech custom powder-coated units are not eligible for return. Stainless, Marine Grade Stainless, and 8 standard colors (Almond, Beige, Biscuit, Black, Bronze, Copper, Grey, and White) are returnable within 30 days, but subject to applicable fees. See full Return Policy for details.