The green and energy-efficient development of heating tubes in household appliances is shifting from merely improving thermal efficiency to a comprehensive track involving material innovation, energy efficiency classification, and intelligent control. This is not only a technological upgrade but also directly responds to the latest energy efficiency regulatory policies of the country.
The following are the three core development directions:
Disruptive materials: Graphene and carbon fiber
The application of new materials is breaking the performance ceiling of traditional heating tubes.
Graphene “instant heating”: Midea has released heating tubes using graphene, which can reach 1300°C within 0.2 seconds without preheating. This reduces the cooking time of appliances like air fryers by nearly 50%, significantly reducing heat loss and waste.
Carbon fiber “efficient radiation”: As the current mainstream upgrade solution, carbon fiber electric heating tubes have an electrical-to-thermal conversion efficiency of over 95%, which is 30% more energy-efficient than traditional metal heating tubes. Moreover, the emitted far-infrared rays have strong penetrating power and low heat loss.
2. Policy pressure: Energy efficiency levels as a hard threshold
The country is forcing industrial upgrading through regulations, and those that do not meet the standards will face elimination.
Higher standards come into effect: According to the “Energy Efficiency Levels of Key Energy-Consuming Products and Equipment (2024 Edition)”, household appliances must meet stricter energy efficiency requirements and energy-saving standards. Additionally, the 2025 edition of the energy efficiency labeling directory has been released, setting new requirements for kitchen appliances such as rice cookers and microwave ovens.
Elimination and Incentives: The policy strictly prohibits the sale of products that do not meet the entry-level standards. It also guides consumers to prioritize the purchase of Class 1 energy-efficient products through measures such as “trade-in” subsidies.
3. Technological Innovation: Chip Heating and Structural Optimization
Apart from the materials, innovations in the heating principle and physical structure have also led to significant breakthroughs.
Direct chip heating: The chip water heater uses semiconductor heating, with a thermal efficiency of up to 98.9%, far exceeding the 80% of traditional electric heating tubes. Its “instant on, no need for insulation” feature can achieve a comprehensive energy saving of nearly 30%.
Structural optimization: For example, the flat tube snake-shaped layered design increases the heat absorption area, raising the thermal efficiency to 92%-96%; at the same time, to address the problem of traditional metal tubes being prone to scaling and resulting in a 5%-30% reduction in thermal efficiency, new material solutions also show significant improvement.
Summary: Currently, the green path for household heating tubes is very clear – choose carbon fiber/graphene materials and opt for 1st-level energy-efficient products. This is not only about saving electricity, but also aligns with the direction of the country’s large-scale equipment renewal and consumer product trade-in policies.
Post time: Mar-30-2026