Infrared Patio Heater · 4000W 208V · Single Element Slimline 63.5 in (1613 mm) · Infratech SL-4028
What this product is for
The Infratech SL-4028 is a slimline single-element electric infrared heater for patios, terraces, covered outdoor seating areas, workshops, and other spaces where directional radiant heat is preferred over forced air. It is rated 4000W at 208V and uses a long, narrow housing approximately 63.5 in (1613 mm) wide.
Use for
Use for covered residential patios, restaurant seating, hospitality spaces, entrances, and indoor or outdoor areas where people need direct radiant warmth. This model suits 208V installations and is commonly selected where a single long heater fits the available mounting space better than shorter multi-unit layouts.
Avoid for
Avoid using this heater where the available supply voltage does not match 208V, where broad whole-room air heating is the goal, or where installation clearances and mounting requirements cannot be maintained. It should not be selected by wattage alone without confirming voltage, controls, mounting height, and site conditions.
Best for
Best for electricians, contractors, and project buyers specifying a slim radiant heater for commercial or residential outdoor comfort heat. It is a practical choice when you need a single-element Infratech SL-Series unit with a 63.5 in (1613 mm) body and approximately 19.2A load at 208V.
Installed in
Typically installed in covered patios, pergolas, soffits, restaurant canopies, clubhouses, and similar sheltered locations. The manufacturer installation literature indicates the heater must be installed with the quartz tube horizontally level and in accordance with the specified clearances and instructions.
Why this product exists
This product exists for projects that need targeted radiant heat without moving air, using a slimline single-element format that integrates more cleanly into narrow mounting areas. Compared with bulkier heating options, infrared heaters are commonly chosen where occupants need direct warmth in semi-exposed spaces.
Compared with similar products
Compared with lower-wattage patio heaters, this 4000W model is typically used for larger or more exposed seating zones, subject to mounting height and site layout. Compared with 240V versions, this SL-4028 is specifically a 208V model, so it should be matched to the correct electrical system. As a rule of thumb, 208V heaters must be sized and controlled based on the actual supply and connected load. Actual comfort coverage depends on wind, ambient temperature, mounting height, and installation conditions.
Specifications
- Brand: Infratech
- Manufacturer part number: SL-4028
- Series: SL-Series / Slimline
- Product type: Single-element electric infrared patio heater
- Rated power: 4000W
- Voltage: 208V
- Current: approximately 19.2A
- Length: 63.5 in (1613 mm)
- Approximate housing dimensions from distributor listings: 63.5 in x 4.75 in x 3 in (1613 x 121 x 76 mm)
- Orientation: horizontal level installation required
- Application: indoor/outdoor radiant comfort heating where permitted by installation instructions
- Finish/material: standard stainless steel model reference; finish variants may exist by suffix or distributor listing
- Buying note: fixed electric heating is commonly treated as a continuous load, so overcurrent protection, conductors, disconnecting means, and controls should be selected to suit the installation and applicable Canadian Electrical Code requirements.
Estimated application guidance only: heater coverage and comfort level vary by exposure, ceiling height, wind, insulation, and mounting layout. Actual performance depends on installation conditions, layout, and local electrical code.
Minimum Order $20
We accept the following payment methods:

Credit Card can offer cardholders convenience, security, rewards, and the opportunity to build a healthy credit history.
Click here for Contractor Cash Account
Trade Credit is a standard financing option for contractors and construction companies to obtain supplies and keep their projects moving. We offer 30-day credit terms to trade contractors on approved applications only.
Click here for Contractor Credit Account 
(Contractor Accounts)
Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas
(All Other Accounts)
Standard Shipping-Free on orders over $499
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.




