1. A Major Overhaul for Northern China’s Urban Heating Network
Summer is the prime season for overhauling district heating pipelines in Northern cities—an initiative known locally as “treating winter’s illness in summer.” Since 2024, national policies such as the “Two New, Two Heavy” infrastructure programs have prioritized the upgrade of underground networks for heating, gas, and water as key components of urban modernization.
The 2024–2025 Energy-Saving and Carbon Reduction Action Plan mandates a 2% decrease in urban heating pipeline heat loss by 2025 compared to 2020 levels. As of 2023, centralized heating coverage reached 14.32 billion square meters, but average heat loss remained high at 20%, with over 40% of pipes in service for more than 15 years. Aging infrastructure and frequent failures signal the need for systemic reconstruction—not just repairs.
2. Why Melamine Foam Can Replace Glass Wool
Glass wool, a traditional pipe insulation material, suffers from major drawbacks:
- High moisture absorption and condensation lead to elevated heat loss
- Brittle and dusty, creating poor working environments and health concerns
- Short lifespan and high maintenance costs
- Limited insulation performance that no longer meets energy efficiency standards

By contrast, melamine foam from SINOYQX surpasses glass wool across all key performance metrics, making it the ideal upgrade for district heating:
| Performance Index | Glass Wool | Melamine Foam |
| Thermal Conductivity | ~0.040–0.045 W/m·K | As low as 0.035 W/m·K |
| Fire Resistance | A1-grade | Intrinsic B1-grade |
| Water Absorption | <1%, ultra-low | High; prone to condensation |
| Operating Temp. Range | -40°C to +120°C | -180°C to +240°C |
| Environmental Safety | Fibrous dust, irritating | Dust-free, eco-friendly, biodegradable |
| Service Life | 5–10 years | Over 15 years |
📍 Case Studies: In cities like Yanbian (Jilin), Hohhot (Inner Mongolia), and Handan (Hebei), SINOYQX melamine foam pipe shells have been successfully adopted for underground heating pipeline retrofits. When paired with smart control systems, heat loss was reduced by over 18%, earning formal recognition by local authorities.
3. Supporting Carbon Reduction and Energy Efficiency Goals
Northern China’s heating sector emits nearly 1 billion tons of CO₂ annually, about 10% of China’s total emissions, comparable to the transport sector. Although district heating is not the largest source, high heat loss and inefficiency remain critical issues.
Melamine foam enables a shift from the pipe level:
- ✅ Reduces heat loss by 2–4 percentage points
- ✅ Increases system operating efficiency by 8–15%
- ✅ Indirectly reduces fuel consumption (natural gas or other heat sources)
- ✅ Supports demand-based smart heating

In combination with AI-driven regulation and intelligent monitoring, melamine foam evolves from a simple insulator into a smart, energy-efficient system solution.
4. Fit for the New Generation of Heat Sources and Long-Distance Networks
With China’s shift toward industrial waste heat and renewables as heat sources, transmission distances are growing—raising the bar for insulation performance. Glass wool is increasingly unfit for long-distance pipelines due to compression, insulation decay, and complex maintenance.
SINOYQX melamine foam offers:
- ✅ Ultra-lightweight (8–12 kg/m³)—no added load to the structure
- ✅ Non-compressible, suitable for CHP, incineration, and nuclear residual heat pipelines
- ✅ Stable thermal insulation, ideal for high-temp gradients and complex installation sites
🔧 Planned Demonstration: In the Qingdao nuclear heating project, melamine foam is set to insulate a 100 km transmission line from plant to city. Forecasts show a 25% reduction in heat loss and 15% cut in operating costs.
5. Policy Backing and Market Momentum
Government investment and subsidies are increasing for modernizing heating infrastructure:
- Cities like Beijing, Jinan, Shenyang, and Harbin have included new insulation materials in approved renovation directories
- In Beijing, government-funded projects receive up to 50% subsidies, district-level projects up to 15%
- Numerous pilot cities now encourage “inherently flame-retardant insulation materials” as glass wool alternatives
✅ Industry Action Plan:
- Advocate for inclusion of melamine foam in the Government Energy-Efficient Product Procurement Catalog
- Launch demonstration projects to highlight energy-saving impact
- Build full-lifecycle cost-benefit evaluation frameworks to shift perception from initial cost to long-term value
Conclusion: Melamine Foam—A Cornerstone for Low-Carbon Heating Networks
Upgrading Northern China’s district heating systems is vital for achieving sustainable, low-carbon urban living. Melamine foam is not just an innovative material—it’s a pathway to smarter, greener, and more efficient heating infrastructure. By enabling point-level transformation that scales, it is poised to become a core material for heating system upgrades, carbon reduction, and smart city development.
📞 Contact Us for Technical Data and Samples
SINOYQX
📍 Address: 29/F, Unit 3, Building 3, No. 388 Huazhaobi Xishun Street, Jinniu District, Chengdu, Sichuan, China (Postcode: 610000)
📧 Email: [email protected]
📞 Tel/ WeChat: +86-28-8411-1861 | +86-135-4070-2776
🌐 Website: www.sinoyqx.com