Uwe Lucht
- Managing director
- Tel.: +49 (0) 3724 66869 14
Perfect Quality
Electric radiators are an efficient heating solution.
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Independent tests and studies
on the efficiency of our electric radiators
Lucht LHZ electric radiators are ERP-compliant and fulfil the highest European standards for energy efficiency in accordance with the EU Ecodesign Directive. Independent tests and scientific studies by institutions such as SLG Prüf- und Zertifizierungs GmbH, the Technical University of Dresden and other experts confirm the energy efficiency and performance of our products.
We offer OEM partners the opportunity to use our technology and production capacities to develop and offer customised electric radiators. With a continuous production chain and a modern ERP system, we guarantee high quality standards and delivery reliability.
Discover our wide range of products and become part of an efficient and future-proof heating solution.
Scientific studies
Comparison of room heating with infrared and surface storage heaters (TU Dresden)
As part of a joint study by TU Dresden and Lucht LHZ Elektroheizung GmbH & Co. KG, a metrological comparison was carried out between a surface storage heater and an infrared heater.
The scientists developed a detailed test setup in the Combined Energy Lab at TU Dresden to analyse the performance and heat distribution of the two types of heating. They used a specially temperature-controlled room in which various scenarios were tested.
The result: surface storage heating ensures even temperature distribution and requires around 34% less energy than infrared heating to maintain the desired room temperature. Infrared heating mainly emits radiant heat and is better suited for targeted heating of occupied zones, but shows an uneven temperature distribution in the room.
Find out more about the study (PDF – in German)
Download: Test report (PDF – in German)
Find out more about surface storage heaters and infrared heaters from Lucht LHZ
Metrological comparison of the heating energy consumption of a conventionally heated detached house with a building with infrared heaters (Fraunhofer Institute)
The study commissioned by IG Infrarot from the Fraunhofer Institute shows: Infrared heaters consume 32% less final energy than gas condensing boilers.
The tests on two identical buildings clearly showed that the thermal comfort of both heating systems was similar. However, infrared heaters are more energy efficient. The study comes to the clear conclusion that the technology offers great potential for energy savings and improved heating performance, particularly in existing buildings.
In order to exploit the full potential, further studies on economic efficiency and energy balance are planned. The only weak point is the slightly higher carbon footprint of infrared heaters compared to gas heaters. This is due to the generation of electricity from fossil fuels, although a significant reduction is expected in the future due to the increasing use of renewable energies.
Find out more about the study (in German)
Download the study: Test results (PDF – in German)
Measurement of the heat output of the partial storage heater (TU Dresden)
As part of a joint study by TU Dresden and Lucht LHZ Elektroheizung GmbH & Co. KG, the scientists carried out a metrological analysis to determine the proportions of heat dissipated by convection and radiation in a partial storage heater. To do this, they designed a test rig concept and implemented it in the indoor climate room of the Combined Energy Lab at TU Dresden. They then carried out stationary tests under various load conditions. Using the measurement data obtained, they calculated the radiation and convection heat flows of our partial storage heater.
The result: approx. 41% of the heat dissipation in the entire room is caused by radiation and approx. 59% by convection – regardless of the load conditions of the partial storage heater.
Download: Test results (PDF)
Study: Evaluation of the potential of infrared heating systems to cover peak loads (TU Dresden)
The industry association IG Infrarot commissioned a study in which scientists at TU Dresden investigated whether an existing water-bearing heating system with high flow temperatures (i.e. a conventional oil or gas heating system) can be upgraded for operation with a heat pump at low temperatures by combining it with an infrared heating system.
The result: Prof. Dr.-Ing. habil. Joachim Seifert, Head of Building Energy Technology at the Institute of Energy Technology at TU Dresden, summarises the results as follows: “Heat pump systems in combination with electric infrared heaters represent a technological option for old buildings. The fulfilment of the heating task and thermal comfort can be guaranteed with this system combination.”
Download: Final report of the study (PDF)
Study: Comparison of an air-to-water heat pump system with an infrared system
Prof. Dipl.-Ing. Timo Leukefeld et. al. compare infrared heaters with air-to-water heat pump heating systems based on the following criteria:
1. operating principle
2. grey energy
3. electricity consumption
4. total costs
The result: A heat pump heating system has significantly higher grey energy for production and disposal than an infrared heating system. Heat pumps require less electricity to operate, Nevertheless, the infrared variants 1b (heating with ceiling infrared panels and electric hot water boiler) and 2b (heating with ceiling infrared panels and electric hot water boiler in combination with a PV system with a nominal output of 10 kW and a battery system with a capacity of 10 kWh) are more economical than the heat pump variants 1a (heating and hot water preparation with an air-to-water heat pump) and 2a (heating and hot water preparation with an air-to-water heat pump in combination with a PV system) when comparing the systems. The service life of the heat pump is shorter than its static amortisation period (35 and 47 years respectively). Amortisation is therefore impossible. The required technical area of the variants is around 2 m² less if the heat pump can be omitted.
Independent tests of our electric radiators
Testing energy consumption at specified temperatures (SLG)
The testing experts at SLG Prüf- und Zertifizierungs GmbH (SLG) tested the energy consumption of our electric heaters at an ambient temperature of 5 °C and a room temperature of 21 °C with an air exchange rate in the test chamber of 1.0/h.
Protocols of the independent tests
Partial storage heater: Test report (PDF)
Experience reports of our electric radiators
Experience Report: Three Years of Heating with Lucht LHZ Partial Storage Heaters in a Renovated Old Single-Family Home
Lucht LHZ is proud to present a detailed experience report from one of our OEM customers who have successfully used our partial storage heaters (also known as surface storage heaters) in their renovated old single-family home.
The M. family, consisting of two adults and two children, has lived in a semi-detached house in the Erzgebirge foothills near Chemnitz since spring 2021. The following report summarizes the results and experiences from three years of heating practice.
ERP-compliant electric radiators
The ERP-compliant electric radiators from Lucht LHZ impress with their energy efficiency. ERP stands for “Energy-related Products”. Our products fulfil the strictest European standards for energy-related products in accordance with the EU Ecodesign Directive. This guarantees that every electric radiator in our range not only minimises energy consumption, but also reduces the environmental impact throughout its entire service life.
As an OEM partner, you offer your customers the latest technology and sustainability – and therefore real energy cost savings.
Choose Lucht LHZ for an environmentally friendly heating solution that is efficient and responsible. Join us in our commitment to a greener future.
Become an OEM partner and benefit from these advantages:
- 35 years of experience: We are a manufacturer of innovative electric radiators made in Germany.
- Highest quality standards: We produce high-quality, durable and safe electric radiators for you in compliance with all specifications of national and international standards, directives and laws.
- Full range of electric radiators: We produce all types of electric radiators for you and develop new products for you and with you.
- Modern and efficient production: We reliably produce even large quantities of electric radiators for well-known OEM partners, have a large warehouse incl. dropshipping.
- White label electric radiators: We supply you as a reseller with electric radiators with your brand label.
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