Differences between radiant strips, radiant tubes and ceiling radiant heating panels
Radiant strips, radiant tube modules, and ceiling radiant heating panels: how do different radiant heating systems for large industrial spaces work and what are the main differences.
Heating a large industrial warehouse effectively is crucial to ensure a healthy and comfortable working environment for operators during the winter months.
In the market, numerous solutions for industrial heating are offered, including gas or electric infrared radiant systems, convection systems, hot air generators, radiant floor heating, and heat pumps.
Radiant systems are undoubtedly an effective and sustainable solution in terms of energy and management costs. They allow for the natural heating of industrial warehouses, warehouses, and workshops without heat dispersion. Among the most well-known and used systems are gas radiant strips, radiant tubes, and water-based ceiling radiant heating panels.
How do they work, and what are the main differences between these infrared systems? Let’s discover them together in this article.
Gas radiant strips
What is a radiant strip?
It is a system consisting of a heat generator positioned outside the warehouse, a radiant circuit installed on the ceiling, and a temperature control device.
The generator produces a mixture of air and combusted gas that is circulated inside the radiant circuit, comprised of one or more tubes positioned parallel to each other. The tubes are laterally and topically insulated by a frame that incorporates fiberglass to minimize heat loss and, consequently, increase radiant capacity.
Once heated, the pipes emit energy in the form of infrared radiation. This allows for the quick heating of objects within the area, directly affecting the floor, machinery, and people, creating an immediate sensation of warmth.
The radiant circuit, being positioned at the top of the warehouse, does not occupy valuable production space and is composed of pre-assembled modules connected through carbon fiber joints, ensuring a tight seal and tube expansion.
A gas radiant strip heating system has a minimum power of 30 kW and a maximum power of 300 kW, with a potential length of up to 150 meters.
Thanks to gas radiant strips, there is no need for a dedicated boiler room in the company, which would otherwise take up valuable production space.
Each radiant strip is autonomous and can be adjusted according to specific needs to create the right comfort based on the work carried out within that particular area.
Advantages of radiant strips
Gas radiant strips offer numerous advantages:
- Uniform heat distribution: Ensures even heat distribution in the environment without temperature differences within the same zone
- Quick achievement of thermal comfort: Rapidly achieves thermal comfort
- Long-term energy savings: Provides energy savings in the long run
- Targeted temperature control: Allows precise temperature control based on specific needs
- Flexible placement of radiant lines: Enables flexible positioning of radiant lines according to the space requirements of the production area
- Silent operation: Operates quietly
If you want to delve deeper into the advantages offered by gas radiant strips, read the dedicated blog article.
Radiant strips for industry: operation and benefits
Sector of application for radiant strips
Radiant strips are ideal for industrial environments such as warehouses and storage facilities with a height exceeding 5 meters, capable of heating spaces with heights greater than 10 meters.
They can also be used to heat railway workshops, hangars, and medium to large sports facilities.
Radiant tube modules
The operation of radiant tubes is very similar to that of radiant strips, although they are constructed differently.
Radiant tubes are high-efficiency standalone heaters, consisting of a burner unit, calorized aluminum-coated steel radiant tubes, and a flue gas extractor that completes the circuit.
Like radiant strips, the radiant tube system is installed in the upper part of the building, avoiding occupying valuable ground production space. The power range varies from a minimum of 15 kW to a maximum of 52 kW.
The radiant circuit can have a minimum length of 3 meters up to a maximum of 18 meters.
While radiant strips are suitable for heating entire structures, ensuring even heat distribution over the entire surface, radiant tube heating systems are particularly suitable for zone heating.They provide excellent performance with minimal consumption, thanks to the ability to direct the radiant beam towards specific areas.
Similar to radiant strips, the burner unit in radiant tubes burns a mixture of air and gas circulated inside the radiant tubes. As the tubes heat up, they emit heat in the form of infrared waves directly and without dispersion, warming the people inside the environment, the floor, and the machinery.
Above the radiant tubes, reflective parabolic shields made of aluminum or stainless steel are installed. These elements are crucial for concentrating and reflecting radiation downward, as well as for preventing the dispersion of the minimal amount of heat generated by convective effects. The greater the amount of heat reaching the floor, the higher the energy savings will be.
Advantages of radiant tubes
Radiant tube modules offer numerous advantages in terms of comfort and economic savings.
Among the main benefits are:
- Quick heating: Rapid heating in a short period
- No air and dust movement in the environment
- Comfortable temperatures with minimal heat loss: Maintains comfortable temperatures without heat dispersion
- No additional noise in the work area: No additional noise spread in the work area
Industrial sectors for radiant tubes
Radiant tubes are the most effective radiant heating solution for industrial spaces with a height exceeding 5 meters and reaching heights greater than 10 meters. These heating systems are ideal for warehouses, storage facilities, railway workshops, hangars, and sports spaces.
Ceiling radiant heating panels
What are ceiling radiant heating panels?
Ceiling radiant heating panels are ceiling-based radiant heating systems composed of panels that operate with hot water, overheated water, or steam. The water used for these panels can be heated in various ways, including with a gas boiler, pellet boiler, through photovoltaic panels, heat pump, and so on.
The structure of ceiling radiant heating panels is made of high-quality steel with a surface treatment of thermosetting epoxy powders, providing long-lasting durability to the panels and ensuring high radiant emission.
Water ceiling radiant heating panels are a natural heating system: the transmission of heat from the fluid to the emitting plates and from these to the environment does not require specific mechanical or electrical components but occurs according to the physical laws governing heat transmission.
Available in various lengths and widths, these panels can be joined together using sleeves, allowing for the creation of radiant heating systems with ceiling radiant heating panels of the desired length.
Additionally, radiant panels ensure a consistent temperature across the entire radiant surface, promoting even heat distribution in the heated area.
Advantages of water radiant panels
Water radiant panels have numerous advantages, among the main ones are:
- Heat distribution: Ensures uniform heat distribution within the building
- Noise-free environment: Absence of noise in the environment
- No circulation of air and dust
- Energy savings and reduced operating costs
- Possibility of cooling work areas in summer
- Requires minimal maintenance
Sector of application for radiant water panels
Unlike radiant strips and tubes, radiant water strips are ideal for industrial environments with heights even less than 5 meters and are the optimal choice for warehouses with a high risk of fire or explosion. They are suitable for heating warehouses, storage facilities, workshops, commercial spaces, sports facilities, and hangars.
Thanks to their minimal design and the standard white/gray color, tones that easily adapt to any environment, radiant water strips are ideal for industrial, sports, and commercial spaces where aesthetics are important, or there are architectural constraints.
In summary: radiant strips offer uniform heat distribution, radiant tubes provide a flexible solution, and radiant water panels present a targeted and efficient approach, especially for environments at high risk of fire. The choice among these technologies will depend on the specific needs of the environment in question, considering factors such as energy efficiency, heating speed, and ease of installation.