Danfoss Ltd

In Molde, Norway, a homeowner faced the persistent challenge of maintaining a safe and accessible driveway during harsh winter months. Traditional snow removal methods, such as manual shoveling and chemical de-icing, proved labor-intensive and potentially harmful to the environment. Seeking a more efficient and sustainable solution, the homeowner turned to DEVI's electric heating systems.ChallengeThe primary concern was to ensure continuous, safe access to the garage and house entrance without the need for constant manual intervention. The solution needed to be reliable, energy-efficient, and capable of withstanding Norway's severe winter conditions.SolutionTo address this, 160 square meters of DEVIsnow™ heating mats were installed across the entire driveway and entrance areas. These mats are specifically engineered for outdoor applications, providing effective snow and ice melting to keep surfaces clear and safe. The installation was executed by Holms Elektro AS, a certified installer with extensive experience in professional setups. Remarkably, the entire system was installed in just two hours, demonstrating the efficiency of both the product and the installation process. OutcomePost-installation, the homeowner experienced a significant transformation. The driveway remained consistently clear of snow and ice, eliminating the need for manual snow removal or chemical treatments. This not only enhanced safety but also provided peace of mind during the winter season. The DEVI electric heating system proved to be a practical, cost-effective solution, showcasing how modern technology can address common winter challenges efficiently. This case exemplifies the effectiveness of DEVI's outdoor heating solutions in providing maintenance-free, energy-efficient snow melting for residential properties.

In 2017, a near-zero energy housing complex was developed in the Koblenz-Asterstein region of Germany, an area mandating energy-efficient, passive houses. The project involved constructing semi-detached homes, each approximately 90 square meters in size. To meet stringent energy efficiency standards, the builders evaluated various sustainable heating methods and ultimately selected DEVI's electric underfloor heating system, integrated with a photovoltaic (PV) system. ChallengeTraditional perceptions often associate electric heating with high energy costs and environmental concerns. The primary challenge was to implement an electric heating solution that would be both energy-efficient and cost-effective, aligning with the passive house requirements of the region.SolutionThe chosen solution combined DEVI's electric underfloor heating mats with a rooftop PV system. Each home was equipped with DTCE 100T heating mats, controlled by DEVIreg Touch thermostats in every room. The heating mats were configured to provide an output of 35 W/m², while the PV system had a capacity of 5 kWp, complemented by a 5 kWh battery storage unit. This integration allowed the homes to utilize self-generated solar energy for heating, significantly reducing reliance on external power sources. The system's design ensured rapid heating response times due to the lightweight floor construction, and room-specific thermostats offered precise temperature control, enhancing overall energy efficiency. OutcomeThe combination of DEVI's electric underfloor heating and the PV system resulted in homes that not only met but exceeded energy efficiency expectations. The annual electricity consumption for heating, hot water, lighting, and other uses was recorded at 5,948 kWh, with the PV system contributing 1,942 kWh of self-consumed energy. This setup effectively offset energy costs and, in some cases, allowed homeowners to generate surplus energy. Elmar Härter, a Diploma Engineer at Härter Planungsbureau involved in the project, noted, "Heating with electric mats is only economical to operate if you build a building that has low energy costs. The high energy costs can be compensated by a photovoltaic system with storage." This case exemplifies how modern electric heating solutions, when paired with renewable energy sources, can provide sustainable and cost-effective heating in energy-efficient housing developments.

In September 2021, the Woolworths Distribution Centre faced significant condensation issues due to temperature disparities between their cold storage areas and adjacent office spaces. This condensation led to water dripping hazards in meeting rooms, the canteen, and offices, posing safety concerns and potential damage to infrastructure.ChallengeThe primary challenge was to mitigate condensation resulting from the temperature differences between the cold storage facilities and the warmer office environments. An effective solution was needed to prevent moisture accumulation and ensure a safe, dry working environment.SolutionTo address this issue, Heat Zone Distribution supplied DEVI electric heating cables, and NWR Electrical Services managed the installation. The project encompassed a 700.71 m² area, divided into four zones. Thermostats were integrated into the switchboards, creating a "set and forget" system that automatically regulates temperatures to prevent condensation. The installed system had a total power of 2,743.21 W and utilized products such as DEVIsnow™ 30T, DEVIbasic™ Drum Goods, DEVIreg™ 330, and DEVIbasic™ 10S. OutcomePost-installation, the distribution centre successfully eliminated condensation issues, ensuring safe and dry conditions in all affected areas. The DEVI electric heating system proved to be an effective, space-saving, and low-maintenance solution, addressing the temperature disparities between the cold storage and office spaces. This case demonstrates how targeted electric heating solutions can effectively manage environmental control challenges in facilities with varying temperature zones.

In 2016, two apartment buildings in Suzhou, China, comprising 600 units, faced the challenge of providing immediate and safe hot water to residents. The primary concern was the potential growth of Legionella bacteria in stagnant water within the extensive piping network.ChallengeEnsuring a consistent supply of hot water across all apartments without delays, while mitigating the risk of Legionella proliferation, required an effective and reliable solution.SolutionTo address this, a comprehensive pipe tracing system was implemented using self-limiting heating cables. Approximately 10,000 meters of EChotwatt 55 cables were installed, averaging about 20 meters per apartment. These cables maintain the water at a temperature that prevents bacterial growth and ensures immediate hot water availability.OutcomeThe deployment of self-limiting heating cables effectively maintained the desired water temperature throughout the complex. This solution not only provided residents with instant access to hot water but also significantly reduced the risk of Legionella contamination, enhancing overall health and safety standards within the buildings.This case exemplifies how modern electric heating technologies can be leveraged to meet the dual objectives of comfort and health in large residential settings.