Green fish Company supplies floor heating modules to the core area of Wanzai, Jiangxi

　　1. Project background

　　Regional development needs

　　Wanzai County, Jiangxi Province has launched a plan for urban renewal in the core area, focusing on the renovation of old communities and newly built landmark public buildings (such as Citizen Cultural Center and Health Care Community) built in the 20th century, requiring the floor heating system to meet the following goals:

　　Energy conservation and environmental protection: Respond to the "Carbon Peak Implementation Plan" of Jiangxi Province, adopt low-carbon heating technology to reduce coal-fired pollution in winter;

　　Space optimization: Solve the problem of insufficient floor height (generally ≤2.8 meters) in old communities, and the thickness of the floor heating module must be ≤8cm;

　　Smart Operation and Maintenance: Adapt to Wanzai County's "Smart City" platform to realize remote monitoring of heating systems and energy consumption analysis.

　　Supplier selection

　　Wanzai Urban Investment Group evaluated 8 floor heating companies across the country through public bidding. Green fish Company won the bid with its three core advantages:

　　Ultra-thin technology: independently developed graphene composite thermal conductive layer, achieving equivalent heating efficiency of traditional floor heating (10cm) at a thickness of 6cm;

　　Modular design: Standardized components support rapid assembly, with a single-day construction area of up to 500㎡;

　　Localized services: A regional warehousing center is set up in Yichun City, which can achieve "2-hour emergency response".

　　2. Technical solutions and regional customization innovation

　　Material and structural breakthroughs

　　Ultra-thin and efficient: using "graphene coating + XPS extruded board" composite substrate, the thermal conductivity is increased to 0.032W/(m·K), which saves energy by 30% compared with traditional PE-RT pipes;

　　Silent design: built-in EPP sound insulation layer to eliminate water flow noise and meet the quiet requirements of residential night heating (≤25dB);

　　Fire safety: Passed the GB 8624-2012 B1 level combustion test and adapted to the fire protection specifications of public buildings.

　　Smart IoT Integration

　　Embedded NB-IoT temperature sensor: monitor heating data in each area in real time and automatically adjust the water temperature (Error ±0.5℃);

　　Develop Wanzai Smart Heating APP: Residents can adjust room temperature through their mobile phones, and the property management side can remotely check faults (such as pipeline leakage alarm).

　　Adapt to old communities

　　Designing a detachable maintenance port: solves the pain points of traditional floor heating repairs that require damage to the ground;

　　Provide a lightweight installation solution: the module unit weight is <15kg to avoid the load-bearing of old floor slabs exceeding the limit.

　　3. Implementation process and people's livelihood security

　　Phase delivery

　　Pilot renovation: Three typical communities (brick-concrete structure in the 1980s and frame structure in the 2000s) were selected for model section construction. After testing by Jiangxi Provincial Institute of Building Science, the heating uniformity reached 98% and the residents' satisfaction was 95%;

　　Large-scale promotion: Complete floor heating renovations in 12 communities in the core area (total of 860,000 square meters) and citizen cultural centers (23,000 square meters) before winter 2023.

　　Construction and residents' coordination

　　Off-peak construction: Coordinate with the community, give priority to the transformation of non-residential areas (such as garages and ground-floor shops) to reduce the impact on residents' lives;

　　Charity training: Provide floor heating maintenance courses for property personnel and cultivate local operation and maintenance teams.

　　Emergency support mechanism

　　Reserve mobile emergency heating trucks: provide temporary heating for old communities during extreme cold waves;

　　Open a 24-hour service hotline: Solve emergencies during use by residents (such as thermostat failure).

　　4. Cooperation results and social benefits

　　Project benefits

　　Energy conservation and consumption reduction: The overall energy consumption of the project is reduced by 42% compared with before the transformation, reducing carbon dioxide emissions by 12,000 tons per year;

　　Improvement of people's livelihood: In winter, indoor temperature increased from 14-16℃ to 20-22℃, and the rate of complaints from residents decreased by 87%;

　　Economic driving: Directly drive more than 300 local jobs (including installation, operation and maintenance positions), and indirectly promote the development of upstream and downstream industries such as graphene materials.

　　Policy demonstration value

　　The project was selected as a "Typical Case of Low-Carbon Technology in Urban Renewal" in Jiangxi Province and was cited by the Ministry of Housing and Urban-Rural Development's "Implementation Plan for Carbon Peak in the Field of Urban-Rural Development";

　　Green fish Company and Wanzai County Government have signed a strategic cooperation agreement, and will invest 200 million yuan to build a regional green building materials industrial park in the next three years.

　　Long-term brand impact

　　Green fish Company used this case to expand the central China market, and Jiangxi's regional sales increased by 180% year-on-year in the first half of 2024;

　　The Wanzai core area floor heating project has become a benchmark for the "heating revolution" of county-level urban renewal, attracting more than 20 inspection teams from Hunan, Hubei and other places to visit and study.

　　5. Experience and enlightenment

　　Technology needs to focus on people's livelihood pain points

　　County urban renewal projects pay more attention to cost, space and residents' acceptance, and suppliers need to balance performance and practicality through ultra-thin and modular design.

　　The coordination between government, enterprises and the people is the key

　　The government (policy support), enterprises (technology implementation), and residents (use feedback) need to form a closed loop to avoid "technical islands".

　　Extended value from products to services

　　Through value-added services such as smart IoT and localized operation and maintenance, a sustainable profit model can be built instead of single equipment sales.