Buying Guide
Outdoor Infrared Heaters
How to Choose the Right Opranic Model for Your Patio
Outdoor infrared heaters are the only heating method that actually works when you are under the open sky, and the difference between an average model and a well-engineered one is greater than most people realize. This buying guide provides concrete answers on how much power you need for your terrace, balcony, or sunroom, which model suits your situation, and what the operating costs are. No marketing, just straight facts and buying advice based on more than 17 years of specialization in infrared technology.
The Sunshine Principle
Why an Electric Outdoor Infrared Heater Is the Best Option
A standard radiator or fan heater warms the air. Outdoors, that air disappears with the next gust of wind, and you pay for energy that blows away. This is why convection heat has never worked outdoors, and why gas heaters require so much energy to provide a noticeable effect. The heat rises faster than it is created.
An electric outdoor infrared heater operates on a completely different principle. It emits infrared radiation that is absorbed directly by the body, much like the sun’s warmth on a clear winter day. You know the feeling: ten degrees below zero in the mountains, yet you are warm in the sun. It is exactly the same principle. No warm-up time, no drafts, and no energy lost upwards.
Opranic’s IR-X Carbon Black technology operates at 2.4 micrometers, which is the optimal wavelength for human absorption. The body consists of approximately 80 percent water, and water absorbs this specific wavelength efficiently. The result is immediate, even heat that feels natural and neither glares nor stings. This is why an electric outdoor infrared heater is the only rational choice for an outdoor terrace. Read more about how infrared heating works and the importance of wavelength.
Efficiency
96 percent of the energy becomes heat; nothing blows away
Opranic heaters convert up to 96 percent of the supplied electrical energy directly into radiant heat. Only 2 to 3 percent is emitted as a faint, pleasant glow. There is no warm-up time and no energy loss via air that is heated and then blows away. Every watt you pay for goes toward heating you and your guests, not the atmosphere.
This results in an operating cost of approximately 4.60 SEK per hour at full power of 2,300 W, based on a Swedish electricity price of around 2.00 SEK/kWh. At lower power levels, the cost decreases proportionally. Power level 3 on the THOR S70 (1,600 W) costs approximately 3.20 SEK per hour, and power level 1 is around 1.00 SEK per hour. For comparison, a gas heater with the same heating effect costs around 30 SEK per hour in LPG.
Since an outdoor infrared heater warms the body directly and not the air, you can maintain a lower ambient temperature and still experience full comfort. It is the difference between turning on full power and hoping it gets warm, and directing exactly the right amount of heat where it is actually needed.
You heat the body, not the air. That is the key difference outdoors.
Power Requirements
How Much Power Does Your Outdoor Heater Need?
A rule of thumb for outdoor infrared heaters is to calculate 150 to 200 watts per square meter in a protected space, and up to 300 watts per square meter in a more exposed location. A 2,300 W heater thus covers 15 to 25 square meters in normal conditions, slightly less in wind-exposed environments and slightly more in protected ones.
For a balcony of 6 to 8 square meters, a unit of 1,800 to 2,300 W is almost always sufficient. For a terrace of 20 to 30 square meters, you usually need two to three units placed on different sides to cover the entire area evenly. If you have a sunroom or a pergola that is protected from the wind and where the outdoor temperature is not lower than 16 degrees, a 2,300 W heater covers up to 20 to 25 square meters, as wind chill is then minimal.
Remember that the power requirement is about comfort, not about raising the air temperature. The goal is for the radiation to reach everyone sitting within the area. It is better to have two or three well-placed 2,300 W units on power setting P2 or P3 than one oversized unit that still does not cover the entire area evenly.
Placement
Ceiling Mounting, Wall Mounting, and Correct Safety Distances
Ceiling or wall mounting provides the most even heat distribution and is the most common choice for terraces and pergolas. The radiation spreads downward over the entire seating area without hot spots. The recommended mounting height is 1.8 to 2.5 meters, with a 30 to 50-degree tilt toward the seating group.
Never place a wall-mounted outdoor infrared heater directly facing a window. Glass reflects infrared radiation and significantly reduces efficiency. Always aim the heater toward the surface and the people it is intended to warm, not toward reflective surfaces.
The following safety distances must always be respected: 100 cm in front of the heater, 40 cm to the sides, and 20 cm to the ceiling when wall-mounting. These distances apply to flammable materials such as wood, textiles, and plastic. All Opranic models have an IP65 rating and electronic overheating protection, but the basic principle of free air circulation around the radiator must always be followed.
The right power at the right height. That is where the purchase is decided.
The Range
Opranic Outdoor Models: Same Technology, Three Formats
All three Opranic outdoor models share the same IR-X Carbon Black technology, the same carbon element manufactured in Japan, and the same engineering philosophy. What you choose is the format and mounting, not compromises on heating performance. A THOR S70 at power level 5 delivers the same amount of infrared radiation at 2.4 micrometers as a PRO V70 at power level 5. The difference lies in durability, material choice, and mounting flexibility.
Below, all three models are compared side by side. Lifespan is measured in operating hours of the carbon element, and with normal use of 3 to 5 hours per day during the outdoor season, 12,000 hours corresponds to more than a decade of use.
| THOR S70 | NOVA V50 | PRO V70 | |
|---|---|---|---|
| Type | Portable / Freestanding | Wall / Ceiling / Awning | Wall / Ceiling / Awning |
| Color | Cloud White or Jet Black | Champagne with black sides | Cloud White or Jet Black |
| Power | 2,300 W | 2,300 W | 2,300 W |
| Technology | IR-X Carbon Black | IR-X Carbon Black | IR-X Carbon Black |
| IP rating | IP65 | IP65 | IP65 |
| Lifespan | 12,000 h | 8,000 h | 12,000 h |
| Safety Grille | Chrome-plated steel | Chrome-plated steel | Brushed stainless steel |
| Prepared for Central Control | No | No | Yes |
| Warranty | 3 years | 2 years | 3 years |
| Power levels | 5 | 5 | 5 |
| Timer | 9 h | 9 h | 9 h |
| Outdoor Coverage | 15-25 m² | 7-15 m² (25-30 prot.) | 15-25 m² |
| Target audience | Patio, balcony, outdoor room | Outdoor area, balcony | Restaurant, café, commercial |
Product
THOR S70: Portable, Freestanding, Uncompromising
THOR S70 is Opranic’s signature product and a test winner among outdoor infrared heaters. Portable and freestanding at 106 cm and 8.1 kg. Powder-coated aluminum, brushed stainless steel grille, and an IP65 rating that withstands Northern European outdoor conditions. Five power levels, a 9-hour timer, remote control, and electronic overheating protection with tip-over safety. Lifespan up to 12,000 hours and a 3-year warranty.
THOR S70 is equally suited for the terrace, balcony, sunroom, and patio. You can move it between locations, bring it inside during winter, and use it wherever you wish. It is the flexible solution for those who do not want to drill holes in the wall or who change their furniture arrangement between seasons.
- Power
- 2,300 W (5 power levels)
- Heating area
- 15-25 m² depending on environment
- IP rating
- IP65
- Lifespan
- Up to 12,000 hours
- Timer
- 9 hours
- Warranty
- 3 years
- Height / weight
- 106 cm / 8.1 kg
- Colors
- Jet Black, Cloud White
Product
NOVA V50: Wall-mounted, Discreet, Home-adapted
NOVA V50 is Opranic’s wall-mounted outdoor infrared heater for home use. It features the same IR-X Carbon Black technology as the THOR S70, but in an anodized aluminum housing in champagne color. Dimensions are 19.5 x 91.5 x 9 cm and it weighs only 3.2 kg. IP65-rated with five power levels, a 9-hour timer, and an LCD display. Lifespan of 8,000 hours and a 2-year warranty.
NOVA V50 is suitable for those who want a permanent installation that blends into the environment. It almost disappears against the wall when not in use and does not disturb the aesthetics of the patio. It covers 7 to 15 square meters outdoors and up to 25 square meters in a protected sunroom or pergola where wind chill is minimal.
- Power
- 2,300 W (5 power levels)
- Heating area
- 7-15 m² (up to 30 m² sheltered)
- IP rating
- IP65
- Lifespan
- Up to 8,000 hours
- Timer
- 9 hours
- Warranty
- 2 years
- Dimensions / weight
- 19.5 x 91.5 x 9 cm / 3.2 kg
- Color
- Champagne (anodized aluminum)
Product
PRO V70: Professional Class for Demanding Environments
PRO V70 is Opranic’s professional outdoor infrared heater for restaurants, cafés, and permanent installations. It offers the same power and technology as the THOR S70 and NOVA V50, but with anodized aluminum and carbon fiber-reinforced side panels for tougher operating environments. Lifespan up to 12,000 hours and a 3-year warranty. Remote control included.
Five PRO V70 units mounted three meters apart cover an outdoor seating area of 60 square meters for 23 SEK per hour. Compared to four gas heaters, which cost around 170 SEK per hour for the same area, the savings are up to 94,000 SEK per season. If you are installing for a restaurant or outdoor dining area, a full cost comparison between infrared heating and gas is available in our separate guide.
- Power
- 2,300 W (5 power levels)
- Mounting
- Wall, ceiling, awning
- IP rating
- IP65
- Lifespan
- Up to 12,000 hours
- Timer
- 9 hours
- Restart Function
- Automatic, for central power control
- Safety Grille
- Brushed stainless steel
- Warranty
- 3 years
- Material
- Anodized aluminum + carbon fiber panels
- Remote control
- Included
Infrared heaters vs. gas: a complete comparison with cost calculations
Same technology. Three formats. Choose the one that fits your environment.
Swedish Engineering
17 Years of Infrared Specialization in Stockholm
Opranic is a Swedish company with offices in Stockholm. We have not simply selected components and assembled a system. For more than 17 years, we have developed every part ourselves: the carbon element, the reflector, the housing, and the electronics—all optimized and tested together for Northern European outdoor conditions.
The carbon element is manufactured in Japan according to specifications that most suppliers never even test against. It is not a single good element that makes the difference; it is the system that delivers heat where it should go, with minimal loss and maximal comfort. The geometry of the reflector, the material of the steel grille, and the electronic control of the power levels are all parts of the same whole.
It is this engineering philosophy that has earned Opranic awards in Sweden and internationally, with recognition from Aftonbladet, The Independent, The Telegraph, Inspekto, Testson, Testat.nu, and Hantverksproffset, as well as hundreds of positive reviews on Amazon in Europe. It is also the reason why Opranic is one of the most recommended brands for outdoor infrared heaters. Read more in our guide to infrared heater best in test.
Safety & Operation
IP65, Minimal Maintenance, and Low Total Operating Cost
An Opranic heater requires minimal maintenance. Wipe down the reflector and the steel grille when necessary, check that the cable and plug are intact before each season, and that is essentially all. No service contracts, no filters to change, and no moving parts that wear out.
The IP65 rating means full protection against rain, water jets, and dust. An outdoor infrared heater with IP65 can remain in a protected position throughout the entire outdoor season without being damaged. We still recommend bringing the THOR S70 inside during the winter months if it is not actively used, primarily to protect the remote control electronics and extend the life of the powder coating.
A bonus worth mentioning for allergy sufferers: infrared heat does not move the air and spreads neither dust nor pollen. This is a noticeable difference compared to fan heaters and convectors, making an outdoor infrared heater a good choice even in a courtyard or on a balcony where allergens might otherwise be a problem. THOR S70 and PRO V70 come with a 3-year warranty, NOVA V50 has a 2-year warranty, and all models feature electronic overheating protection as standard.
Summary
Which Outdoor Infrared Heater Suits You?
If you have a terrace, balcony, or sunroom and want flexible portable heat: choose THOR S70. If you want a permanent, discreet installation for home use that blends into the environment: choose NOVA V50. If you have a commercial outdoor space or an outdoor dining area: choose PRO V70.
All three are top-class outdoor infrared heaters. They share Opranic’s IR-X Carbon Black technology, 17 years of engineering expertise, and the promise that the heat will reach you, not the air above you. It is the difference you notice from the first second, and it is the reason why Opranic is found in outdoor dining areas and terraces across Europe.
Infrared Heater or Gas: Complete Comparison · Infrared Heater Best in Test 2026: Opranic THOR and PRO
Electricity prices based on the Swedish Energy Agency’s statistics for Swedish households including grid fees and taxes (approximately 2.00 kr/kWh). Actual costs vary with local prices and selected power level.