Providing outdoor space heating during the cold seasons is a growing need for venues such as restaurants, terraces, gazebos, rooftops, and villas. These spaces are often valuable, and by providing proper heating with a radiant heater, they can remain usable and pleasant all year long.
Why is Outdoor Space Heating Important?
In commercial venues like restaurants, providing comfortable heating in outdoor spaces boosts business and ensures the thermal comfort of customers who prefer to dine outdoors.
Challenges of Traditional Outdoor Heating Methods
Using traditional floor heaters in outdoor spaces is not cost-effective because they directly heat the air. In this method, there is no control over the direction of the warm air, and the wind can cause uneven temperatures.
Additionally, floor heaters take up physical space and may not match the venue’s architecture. They also cannot provide consistent thermal comfort for people. The appropriate solution is to use a radiant heater for outdoor space heating.
Radiant Heater: A Sunny Solution for Outdoor Space Heating
The operation of a radiant heating system is based on the principle that, to provide outdoor space heating, you must use methods that transfer warmth to people and objects through radiant waves, just like the sun. Radiant heaters for outdoor spaces use the heat from fuel combustion to transfer it to a unique radiant surface. This surface emits infrared radiant waves, which warm the bodies of individuals. In an outdoor radiant heater, natural gas is burned by a special burner inside tubes with a high radiation coefficient. The heat created is converted into infrared waves and reflected to the desired spots by trapezoidal reflector surfaces located at the top of the device. Due to their nature, when these waves hit objects, they convert into heat, creating a very pleasant sensation similar to the warmth of the sun. The main components of this device include a special radiant burner, radiant tubes, a reflector, and a fan. Electricity is only needed to turn on the device and has very low consumption.
Unique Advantages of a Radiant Heater for Outdoor Space Heating
- Saves Physical Space: These devices are installed at a height and don’t occupy any floor space.
- Provides Uniform and Optimal Heating: In a short amount of time, they create a pleasant “thermal umbrella” at the level of people’s bodies and their surroundings, providing consistent thermal comfort.
- Energy Efficient: These systems are highly efficient and save on both gas and electricity consumption.
- Zonal Heating: They allow for heating in specific, localized zones.
- Low Maintenance Costs: They help reduce repair and maintenance expenses.
- Clean and Healthy Air: They don’t rely on air circulation for heating, which prevents dust and pollutants from being dispersed into the air.
- Enhances Thermal Comfort: People don’t need to gather around a heating device and can experience a pleasant feeling of warmth from a distance.
Dadman Tahvieh Radiant Heaters for Every Outdoor Space
- Tubular (Ceiling) Radiant Heater: These U-shaped tube models can cover a large area with a “thermal umbrella” due to their size and heating capacity. These devices are installed at a height with a burner and fan, along with high-radiation tubes. They are silent and do not produce any light. The tubular heater uses natural gas at household pressure for outdoor space heating. The length of a tubular radiant heater ranges from 3 to 7.5 meters. The smallest tubular radiant heater has a capacity of 15 kW and a length of about 2.90 meters. This model is ideal for rooftops, which are higher and windier, as it provides wide heating coverage.
- Ceramic Heater: This model is used to provide heating for small-sized outdoor spaces. The device is about one meter in size and has high heat intensity. The ceramic panels turn completely red when the device is on. In addition to being mounted on a wall, a ceramic heater can also be installed on decorative metal stands, making it portable. These devices use natural gas or liquid gas. The smallest ceramic heater is 90 cm long, and its gas consumption is approximately 1 cubic meter per hour.
- Electric Radiant Heater: This model is used for outdoor space heating in small areas where natural gas is not available. This device uses single-phase 220V electricity and can be installed on a wall, ceiling, or stand. Its elements turn red when on and create a thermal umbrella very quickly. The electricity consumption of an electric radiant heater (gas model) is between 40 and 100 watts of single-phase power, which is a very low amount.
Wide Applications of Dadman Tahvieh Heaters
Dadman Tahvieh‘s radiant heating systems are among the most modern products in the world, and many foreign manufacturers and large companies recommend these types of devices for outdoor space heating. These heaters are suitable for a wide range of locations, including:
- Restaurants and cafes
- Villas (especially in the Mazandaran and Gilan provinces)
- Gazebos
- Rooftops (roof gardens)
- Terraces and balconies
- Swimming pools
- Industrial and sports halls
- Repair shops and greenhouses
- Public places (such as mosques and prayer halls)
- Poultry farms, cattle farms, and stone-cutting shops
Important Tips for Installing and Choosing a Radiant Heater Model
Installation Height and Method
In open spaces, radiant heaters are typically installed at a lower height than in enclosed spaces to ensure thermal comfort. Generally, an outdoor radiant heater is mounted at a height of 2.5 meters and above. The device should be installed high enough to prevent people from bumping their heads on it. The heating capacity should also be proportional to the installation height—the higher the heating capacity of a tubular ceiling radiant heater, the higher it should be installed.
Radiant heaters can be installed in two ways: at an angle (around 45 degrees) or by hanging them from the ceiling. The company’s technical team provides free installation of ceiling radiant heaters for outdoor spaces.
Temperature Control and Model Selection
Radiant heaters are produced in two models: with a fixed-temperature burner and with an adjustable temperature. In the adjustable model, the burner can produce heat at two capacities, 70% and 100%, using a remote control. This is very useful for days when the weather is a bit warmer.
Choosing the right model for a restaurant, gazebo, or rooftop is a specialized task. This is determined and recommended for free by the sales technical team. The dimensions of the gazebo and its ceiling height also play an important role in selecting the right model.
Safety, Quality, and Energy Consumption
Standards and Warranty
Dadman Tahvieh is the highest-quality brand of radiant heater manufacturer in Iran. Its products are made under an international license and comply with both international and national standards in Iran. All devices have the Iranian National Standard mark and are produced in accordance with European standard BS EN416-1:1999. Dadman Tahvieh’s outdoor space heating products are made with original and very high-quality parts. All devices come with a 5-year warranty on the fan and burner and a 10-year warranty on all tubes. Using high-quality components in a gas-fueled device can increase both the device’s lifespan and its safety. The solenoid valve and air switch for the burner are also sourced from reputable and high-quality European manufacturers like SIT.
Energy Consumption
- Gas Consumption: A ceramic radiant heater consumes about 1 cubic meter of gas per hour, while a tubular model consumes 2 to 6 cubic meters per hour, depending on the model and heating capacity.
- Electricity Consumption: A Dadman Tahvieh outdoor radiant heater has a very low electricity consumption of 40 to 100 watts of single-phase power.
Why Dadman Tahvieh Is the Best Choice for Outdoor Space Heating
Considering that rooftops and other outdoor spaces are valuable but can become unusable during cold seasons, using Dadman Tahvieh’s outdoor space heating heaters can transform them into pleasant and usable environments. A radiant heating system is the best outdoor heater because the heat it produces isn’t absorbed by the air; it directly warms objects and people. These systems don’t take up any physical space and provide heating with high efficiency and low energy consumption.
Frequently Asked Questions About Outdoor Space Heating
What is a radiant heater and how does it work in outdoor spaces?
A radiant heater is a radiant heating system that transfers heat via infrared waves, just like the sun. These waves directly heat people and objects instead of the air. In outdoor spaces, natural gas is burned by a special burner inside tubes with a high radiation coefficient. The resulting heat is converted into infrared waves and reflected to the desired areas by reflectors. When these waves hit objects, they convert into heat, creating a pleasant sensation similar to the warmth of the sun. The main components of this device include a radiant burner, radiant tubes, a reflector, and a fan.
Why is a radiant heater more cost-effective for spaces like restaurants and villas than traditional floor heaters?
Using traditional floor heaters in outdoor spaces is not cost-effective because they directly heat the air, which is then dispersed by the wind. This lack of control leads to uneven temperatures. In contrast, a radiant heater directly warms people and objects by transferring heat through radiant waves, creating a comfortable “thermal umbrella.” Additionally, a radiant heater is installed at a height, so it doesn’t take up physical space. This also makes it more suitable for the architecture of a luxurious venue and helps boost business. These systems also prevent air circulation and dust dispersal and have lower energy consumption, making them the best method for outdoor space heating.
What are the main types of radiant heaters for outdoor spaces, and how do they differ?
There are three main types of radiant heaters for outdoor spaces:
- Tubular (Ceiling) Radiant Heater: This U-shaped model is suitable for heating wider spaces. It is silent and does not produce light. It uses natural gas at household pressure.
- Ceramic Radiant Heater: Used for heating smaller outdoor spaces. It has a high heat intensity, and its ceramic panels turn completely red when on. It can be installed on walls or metal stands and runs on natural or liquid gas.
- Electric Radiant Heater: Suitable for spaces where a natural gas supply is not available. It runs on single-phase 220V electricity and can be installed on a wall, ceiling, or stand. Its elements turn red when on and quickly create a thermal umbrella.
Where can radiant heaters be used?
Due to their high efficiency in open spaces, radiant heaters are suitable for a wide range of venues, including: restaurants, cafes, terraces, gazebos, rooftops, industrial halls, sports halls, repair shops, greenhouses, public places (like mosques and prayer halls), poultry farms, cattle farms, stone-cutting shops, villas (including those in Mazandaran), and even in neighboring countries. This extensive range of applications demonstrates the flexibility and efficiency of these heating systems.
What are the main advantages of using a radiant heater for outdoor heating?
Using a radiant heater in outdoor spaces has several advantages:
- Zonal heating: It provides targeted heating to specific parts of the space.
- Cost savings: It saves on gas and electricity consumption and lowers maintenance and repair costs.
- Space efficiency: Since it’s installed at a height, it doesn’t take up any physical space.
- Thermal comfort: It creates a pleasant thermal umbrella that gives a feeling of warmth similar to the sun.
- Health and hygiene: It prevents air circulation and the dispersal of dust and pollutants.
- High safety: It’s produced with original, high-quality components that comply with international and national standards.
What factors are important when buying a radiant heater?
When buying a radiant heater, the quality and safety of the device are of high importance. It is essential to use original and high-quality components that are manufactured according to Iranian national and European standards. This not only increases the device’s lifespan but also provides a higher level of safety. Components such as the radiant tubes, reflectors, fans, and the burner’s solenoid valve and air switch should be sourced from reputable European manufacturers. Additionally, after-sales services—including on-site visits and expert assessments, installation, startup, maintenance, and a long-term warranty (5 years for the fan and burner and 10 years for the tubes)—are important factors to consider when choosing an outdoor space heating system.
How much energy (gas and electricity) do radiant heaters consume?
The energy consumption of radiant heaters varies depending on their type and capacity:
- Gas consumption: Ceramic radiant heaters consume about one cubic meter of gas per hour. Tubular radiant heaters consume between two and six cubic meters of gas per hour, depending on the model and heating capacity.
- Electricity consumption: Outdoor radiant heaters run on single-phase electricity and consume a very low amount, between 40 and 100 watts. This consumption is mainly for the startup of the device.
Is a restaurant radiant heater’s temperature adjustable, and what is the proper installation height?
Yes, radiant heaters are available in two models: with a fixed-temperature burner and with an adjustable temperature. In the adjustable model, you can use a remote control to set the device to 70% or 100% capacity, which is very useful for days when the weather is a bit warmer.
The proper installation height for a radiant heater in an outdoor space is generally 2.5 meters and above. The installation height must be high enough to prevent people from bumping their heads on it and must be proportional to the device’s heating capacity. In other words, the higher the heating capacity of the tubular ceiling radiant heater, the higher it should be installed. Choosing the right model and installation height for an outdoor space heating system is a specialized task performed by a technical team.
Other Dadman Tahvieh Radiant Heater Products
Here is a list of other radiant heater products from Dadman Tahvieh:
- Radiant Heater for Livestock and Cattle Farms
- Radiant Heater for Poultry Farms
- Industrial Electric Radiant Heater
- Sports Hall Heating
- Industrial Warehouse Heating
- Radiant Heater for Greenhouses