Optimal heating and ventilation in the seed production process

About the investor — Poznań Plant Breeding

Poznańska Hodowla Roślin is a renowned company specialising in the production of high-quality seeds. Thanks to its many years of experience and professionalism, the company supplies seeds to farmers and farms in Poland and abroad. Its activities require precise control of conditions — both during production and storage — in order to maintain high seed quality parameters. That is why investing in effective and reliable heating for the production hall at the Nagradowice branch was crucial for stable, continuous and efficient production.

Facility profile and challenge

The Nagradowice branch is a modern seed production hall measuring approximately 20 × 40 m. The facility operates year-round, and stable temperature conditions are crucial both for process continuity and for the protection of advanced production machinery.

In previous years, the plant faced serious problems related to low temperatures:

• temperature drops even below 0°C during severe frosts,
• water condensation on cold machine components, which endangered the controllers,
• freezing of water pipes, leading to failure,
• oil thickening in actuators and problems with hydraulics,
• production stoppages due to weather conditions.

The investor's goal was to ensure uninterrupted, efficient operation of the production line, increase employee comfort, and eliminate the risk of temperature-related failures.

The solution applied

Two Master BV 471SRE oil heaters with exhaust gas discharge were used to heat the hall. Thanks to their design and technical parameters, they perfectly meet the requirements of the facility. The devices are equipped with:

• four-way warm air outlet, enabling the air flow to be directed evenly in several directions simultaneously,
• radial fans with a pressure of 400 Pa, enabling effective air delivery to supply systems with higher resistance,
• additional fuel tanks mounted under the heaters, which simplified the fuel system and increased the operating autonomy of the devices.

As part of the installation, the heat generated by the heaters was partly directed to different areas of the hall using appropriately installed diffusers, and partly distributed over the entire production line through a steel air duct. A small amount of air was also fed through a flexible duct to an adjacent room to slightly increase the temperature there.

This solution allowed heated air to be delivered precisely where it was most needed, ensuring stable working conditions.

In addition, a complete exhaust gas extraction system was installed – exhaust gases are directed outside the building through a chimney system, thanks to which the interior of the hall remains 100% clean, free of pollutants and safe, which is crucial for the production process as well as for comfort and safety at work.

The investor purchased the equipment from Master's authorised distributor, FUH Wichtowski, which, together with experts from the Dantherm Group, provided full support during the selection and installation of the technology.

The person responsible for implementation on the PHR side was Mr Bartosz Siwek, who emphasises his satisfaction with the cooperation and the quality of the equipment supplied. As he himself says:

"We are very pleased with our choice of BV 471SRE heaters, as they turned out to be exactly the solution we needed for our hall. The high fan pressure in these units was crucial for us, as it enabled the effective delivery of warm air through the supply duct above the production line and to other parts of the facility. This has eliminated the previous problems associated with low temperatures, and the temperature throughout the hall has become more stable."

Bartosz Siwek, Seed Production and Warehouse Management Manager, OPN Nagradowice

Self-sufficient heating system for the entire building

Master heaters serve as the sole and primary source of heating for the hall, which means that they are fully responsible for maintaining the appropriate temperature throughout the facility. Thanks to their high heating power and stable operating parameters, BV 471SRE heaters are able to independently provide the required level of heat even during severe frosts.

The solution eliminates the need for additional support systems, while ensuring the continuity of technological processes and full protection of machinery against the effects of low temperatures.

Effects and benefits

• Stable and predictable hall operation – uniform heat distribution ensures optimal conditions for the entire production process.
• Full performance of technological equipment – the right temperature supports the uninterrupted operation of hydraulic systems and control elements.
• Higher operational efficiency – fewer unplanned interruptions and greater continuity of production during the winter season.
• Better conditions for employees – thermal comfort translates into greater convenience and safety at work.
• Multifunctionality throughout the year – in summer, the units operate in ventilation mode, improving air circulation and quality in the hall.

System development plans

The investor plans to further modernise the heating system by:

• purchase of TH-5 room thermostats, which will enable more precise temperature control,
• implementation of the InfoAir system – remote monitoring of operating parameters and fuel levels, enabling ongoing supervision of equipment without the need for physical presence at the installation site

Why this solution works

BV 471SRE heaters, as the sole source of heat in the hall, ensure stable working conditions, uniform heating of the entire space and full protection of processes and machinery. With a power output of 136 kW and an efficient design, the units maintain the required temperature even during severe frosts. In addition, a wide range of accessories allows the configuration of the heaters to be precisely adapted to the individual requirements of the facility.

The units operate economically — fuel consumption of approx. 12.9 l/h ensures predictable operating costs, and the absence of additional heating systems translates into lower investment costs and simpler temperature management in the hall.

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