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About Us

Guangdong Wotech Renewable Energy & Technology Co., Ltd.

Guangdong Wotech Renewable Energy & Technology Co., Ltd.(hereinafter referred to as Wotech) was founded in 2005, integrating research and development, manufacturing, marketing, and after-sales service of heat pumps. FOSHAN SHUNDE HUAMING RENEWABLE ENERGY&TECHNOLOGY CO.,LTD. (hereinafter referred to as DUHM) is a subsidiary of Wotech，was founded in 2011. We combine renewable energy with new technology to offer efficient solutions so that we can create a more sustainable future together!

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HIGH QUALITY

100% Inspection of incoming materials, Production Line test，Random test & Field test Using well-known brand qualified materials and spare parts.

DEVELOPMENT

More than 19 years of Heat Pump Experience with 35+ R&D Engineers CNAS Laboratory Accreditation We can cooperate to develop the products you need.

MANUFACTURING

3 Manufacture Bases, Daily Capacity more than 800 Units Heat Pumps We can manufacture qualified heat pumps beyond your demand.

100% SERVICE

Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

Why Are Heat Pumps Typically Limited to 55–60°C Water Temperature?

Let’s be straightforward: the 55–60°C supply temperature in heat pump systems is not an arbitrary setting. It is the result of years of engineering optimization and field experience, balancing four critical factors: efficiency, durability, system compatibility, and safety. 1. Efficiency First: Work With the Heat Pump, Not Against It A heat pump doesn’t generate heat—it transfers (or “moves”) heat from ambient air into water. This process is highly sensitive to temperature lift. As the water temperature increases, the compressor must work harder The compression ratio rises, leading to higher discharge temperatures The COP (Coefficient of Performance) drops significantly In practice: every +1°C increase in water temperature can reduce COP by ~3–5%. At 55–60°C, the system operates within a balanced compression ratio (≈3–5): Stable performance Lower energy consumption Longer compressor lifespan Push beyond 60°C, and efficiency drops sharply—more electricity, less useful heat. That defeats the purpose of using a heat pump in the first place. 2. System Compatibility: One Temperature, Multiple Applications The 55–60°C range is essentially a “universal compatibility zone” for most heating terminals: Radiators (especially in retrofits) Require ~55–70°C → 55–60°C is sufficient without replacement Underfloor heating Needs only 35–45°C → easily adjusted via mixing valves Fan coil units & domestic hot water (DHW) Typically operate at 45–55°C → fully covered This means: ✔ No need for costly system redesign ✔ Suitable for both new builds and renovation projects ✔ Enables heating + DHW in one system 3. Equipment Longevity: Avoid the Hidden Killers Higher temperatures accelerate two major risks: (1) Scale Formation Water contains calcium and magnesium ions. Above 60°C, scaling increases rapidly: Heat exchanger efficiency ↓ (can drop >30%) Pipe blockage risk ↑ Maintenance frequency ↑ Keeping water below 60°C significantly slows down scale buildup. (2) Component Stress Excessive temperatures lead to: Compressor discharge >100°C Oil degradation Seal aging Increased system pressure Operating within 55–60°C protects critical components and extends system life. 4. Safety & Hygiene: A Practical Balance This temperature range also addresses real-world usage concerns: Legionella control Bacteria are effectively suppressed above 55°C Scalding prevention Water above 60°C increases burn risk significantly Operational stability Most systems have high-temperature protection at 65–70°C → 55–60°C ensures safe margin without triggering shutdowns Final Takeaway The 55–60°C range is not a compromise—it is a strategic equilibrium point: ✔ High energy efficiency (optimized COP) ✔ Broad system compatibility ✔ Reduced scaling and longer equipment life ✔ Safe and hygienic operation This standard is not defined by any single manufacturer. It is the result of industry-wide engineering validation and real-world performance data. If you’re designing or selecting a heat pump system, remember: the goal isn’t the highest temperature—it’s the smartest temperature.

2026-03-11

Tajikistan Client Visits Wotech Factory and Shows Strong Interest in Heating Heat Pumps

Today, Wotech welcomed a valued client from Tajikistan to visit our manufacturing facility in China. The visit aimed to gain a deeper understanding of Wotech’s heat pump technology, production capabilities, and product performance in residential heating applications. During the visit, our technical and sales teams provided a comprehensive introduction to Wotech’s air-to-water heat pump systems, focusing particularly on our high-efficiency heating heat pump series designed for cold climates. In-Depth Factory Tour and Technical Discussion The Tajikistan client toured several key areas of our factory, including: Heat pump production lines Quality inspection and testing facilities R&D laboratories Product assembly workshops Our engineers introduced the core technologies behind Wotech heat pumps, including: High-efficiency inverter compressors Intelligent control systems Low-temperature stable heating performance Energy-saving design for residential heating applications The client showed particular interest in the air-to-water heating heat pump units suitable for residential houses in Central Asian regions where winter temperatures can drop significantly. Initial Purchase for Residential Installation After detailed technical discussions, the client decided to purchase two heating heat pump units for installation in his private residence. These units will serve as pilot installations to evaluate system performance in the local climate conditions of Tajikistan. The testing phase will focus on: Heating performance during winter Energy efficiency and electricity consumption System stability and reliability Compatibility with local heating systems Potential Future Cooperation If the test installations deliver satisfactory results, the client plans to move forward with larger volume purchases and potential distribution cooperation in the Tajikistan market. With the growing demand for energy-efficient heating solutions in Central Asia, heat pump technology is becoming an increasingly attractive alternative to traditional heating systems. Commitment to Global Partnerships Wotech remains committed to supporting international partners by providing: High-quality heat pump products Professional technical support Reliable manufacturing capacity Flexible cooperation models for distributors and installers We look forward to strengthening our cooperation with partners from Tajikistan and expanding the adoption of energy-efficient heat pump heating solutions in Central Asia.

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Address

No.34, South Road, Yongfeng Industrial Park, Shunde District, Foshan 528000, Guangdong Province, P.R. China

Tel

86-757-22860323

E-mail

luke@ecoheat-pump.com

+8618666366485

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