The morning shift begins in a high-ceilinged warehouse. The heating system has been running for hours, but the forklift operator is still working in a coat. The air near the ceiling is lukewarm, while the work area at floor level stays cool.
This picture plays out just as easily in a logistics center in Northern Europe as in a hotel lobby in the Mediterranean. The problem isn't the heater's power — it's how that heat is carried. Sunlike's OYKİ Series directs energy straight to where people are, instead of spending it on the air. In this article, we look at the logic of radiant heating in large volumes, the technical features of the OYKİ Series, and why proper planning matters.
The Problem with Large Volumes: Hot Air Collects at the Ceiling
Warm air is lighter, so it rises. The higher the ceiling, the more pronounced this effect becomes: warm air collects in a layer just under the roof. This phenomenon is called stratification.
As a result, a significant share of the energy ends up heating a volume where no one is present. In warehouses where large doors open frequently, that heated air escapes outside, and the cycle starts over.
Infrared radiation breaks this cycle. Energy reaches people, machinery, and the floor directly, without using air as an intermediary. Warmed surfaces store some of that heat and release it back into their surroundings over time.
Think of stepping outside into winter sunshine. Even when the air is cold, you feel warmth the moment sunlight hits your face. The OYKİ Series works on the same principle: even as doors open and close, heat keeps being felt by workers instead of escaping along with the air.
OYKİ Series: Built for Demanding Environments
The OYKİ Series is developed for warehouses, factories, large halls, and spacious enclosed or semi-open areas. The catalog states it is suitable for demanding industrial environments as well as sterile settings.
- IP65 protection: Rated against dust and water jets under the international protection classification.
- Aero-Tech heating element: A ceramic-coated, stainless-steel-sheathed tubular element. Its service life is 50,000 hours; per the catalog's comparison, halogen, quartz, and carbon elements typically last under 8,000 hours.
- Anodized aluminum radiant plate: Directs heat toward objects and people rather than into the air.
- Rock-wool rear insulation: Reduces energy loss toward the back of the unit.
- Fully adjustable bracket: Lets heat be aimed at the correct angle toward the work area.
Operating temperature is 300 °C and supply voltage is 220–240 V; for projects in countries with different grid infrastructure, confirm suitability with our specialists. Because it runs on electricity without combustion, it consumes no oxygen, produces no combustion byproducts, is silent, and requires no maintenance.
| Model | Power | Heated Area* | Dimensions (mm) | Weight |
|---|---|---|---|---|
| OYKİ 1500+ | 1500 W | 15 m² | 1045×177×60 | 5.3 kg |
| OYKİ 1800+ | 1800 W | 18 m² | 1225×177×60 | 6.1 kg |
| OYKİ 2400+ | 2400 W | 24 m² | 1505×177×60 | 7.3 kg |
| OYKİ 3200+ | 3200 W | 32 m² | 1915×177×60 | 9.3 kg |
Heated area depends on insulation, usage pattern, and building construction.
Where Is It Used?
- Factories and warehouses: Production lines, loading areas, and fixed work stations.
- Gyms and school halls: High-ceilinged spaces used by crowds at intervals.
- Hotel lobbies and large halls: Areas where comfort directly shapes guests' perception.
- Construction sites, café terraces, and semi-open areas: Sections sheltered from wind, under awnings, or partially enclosed.
An important note: the catalog states that the OYKİ Series is not intended for use in windy conditions. In open and semi-open applications, the heater should be installed in a spot sheltered from wind. For small offices and residential rooms, we recommend the SL Series panels instead.
Project-Specific Engineering for the Right Result
In large spaces, success depends as much on correct placement as on the right product. Mounting height, the number of heaters, and the aiming angle all vary with ceiling height, insulation, climate, door openings, and work points. That's why we calculate every project — wherever it is in the world — according to the space's own conditions. For example, a warehouse in Northern Europe with frequently opened loading doors and a gym in a region with cool winters may require a different layout even at the same square footage. A floor plan, ceiling height, and information on work points are enough for our engineering team to start the right calculation.
The OYKİ Series is imported into Turkey under a UK license and is inspected to British quality standards. It comes with a 3-year warranty and a 30-year service life. The products carry UKCA (United Kingdom) and CE (European Economic Area) conformity marks.
Frequently Asked Questions
Q: What's the most efficient way to heat a high-ceilinged warehouse?
In high-ceilinged spaces, warm air collects near the top and part of the energy heats an empty volume. Infrared heaters reduce this problem by directing energy straight to the work area instead of heating the air. Correct placement requires a project-specific engineering calculation.
Q: Can the OYKİ Series be used outdoors?
The OYKİ Series is IP65-rated and can be used in semi-open areas. However, the catalog states it is not suitable for use in windy conditions. Choose locations sheltered from wind, under awnings, or partially enclosed.
Q: How many infrared heaters does a factory need?
The catalog provides an approximate heated area for each model — for example, 32 m² for the OYKİ 3200+. However, the exact quantity and mounting height are calculated by our engineering team based on ceiling height, insulation, climate, and usage pattern.
Q: What does IP65 mean?
IP65, under the international protection classification, means the device is protected against dust and resistant to water jets. This makes the OYKİ Series suitable for demanding environments such as dusty production floors and facilities with regular washdowns.
Q: What voltage does the OYKİ Series run on, and can it be used in different countries?
The OYKİ Series runs on 220–240 V; for projects in countries with different grid infrastructure, confirm suitability with our specialists. The products carry UKCA conformity marking for the United Kingdom and CE marking for the European Economic Area. Also consult our specialists on a project-specific basis for compliance with your country's local regulations.
Q: Does the OYKİ industrial heater need maintenance, and what are its lifespan and warranty?
The OYKİ Series runs on electricity without combustion; it needs no fuel, flue, or filter, and requires no maintenance. The ceramic-coated, stainless-steel-sheathed Aero-Tech heating element has a service life of 50,000 hours; per the catalog's comparison, halogen, quartz, and carbon elements typically last under 8,000 hours. The products come with a 3-year warranty and a 30-year service life.
Q: Is the OYKİ Series suitable for a small office or home?
No. The OYKİ Series is designed for large industrial, agricultural, and semi-open spaces. For homes, offices, and small indoor spaces, we recommend the 25 mm-thin SL Series far-infrared panels.
Let's Plan an Engineering Survey for Your Facility
Share your space's floor plan and usage details with us, and let's design the heating project together. Request a survey via sunliketec.com or by writing to info@sunliketec.com. To reach us by phone: +90 850 304 94 34.
Sources
- Sunlike Tec Product Catalog (2026)