2025-11-24
A Condensing Heat Exchanger is a core component used in advanced heating systems to significantly increase thermal efficiency and reduce energy waste. In many industries, users want reliable, compact, and high-performance heat recovery solutions that can operate under demanding conditions. Zhejiang Hec Machinery Co., Ltd. specializes in manufacturing durable, precision-engineered exchangers that maximize heat utilization while minimizing emissions. The following content explains how the product works, why it matters, and what parameters customers should consider when selecting the right model.
A Condensing Heat Exchanger captures latent heat from exhaust gases by cooling them below the dew point so that water vapor condenses. This phase change releases a substantial amount of additional heat that traditional heat exchangers fail to recover. As a result, this technology can push system efficiency from the typical 80% range to well above 95%.
Key functional advantages include:
Recovering both sensible and latent heat
Lowering flue gas temperatures
Reducing carbon emissions
Improving overall system performance
Enhancing long-term cost savings
By integrating a high-efficiency Condensing Heat Exchanger, industries such as HVAC, boilers, gas appliances, and industrial processing gain superior thermal output without increasing fuel consumption.
In real-world applications, the heat exchanger uses a multi-pass flow system to maximize contact between hot exhaust gases and the cooling medium (water or another fluid). As the gases cool, moisture condenses on the heat transfer surfaces—typically stainless steel or aluminum alloy—releasing additional heat.
Operational flow includes:
Hot flue gas enters the exchanger chamber.
Heat transfers to the working fluid through optimized surface geometry.
Temperature drops below the dew point.
Condensate forms, releasing extra heat that is captured and reused.
Cooler, cleaner exhaust gas exits, reducing environmental impact.
This process helps companies meet higher energy-saving standards and supports sustainability goals.
To help users evaluate the right product, Zhejiang Hec Machinery Co., Ltd. provides clearly defined practical parameters for every Condensing Heat Exchanger.
Materials: Stainless Steel 304/316L, Aluminum Alloy
Heat Transfer Efficiency: 90%–98%
Operating Temperature Range: 30°C–250°C
Working Pressure: 0.1–1.2 MPa
Flow Channels: Single-pass / multi-pass optional
Surface Treatment: Anti-corrosion coating / polished finish
Connection Method: Flanged / threaded / customized interface
Application Scope: Gas boilers, water heaters, industrial furnaces, waste heat recovery equipment
| Parameter | Specification Range |
|---|---|
| Heat Exchange Capacity | 10 kW – 500 kW |
| Gas Inlet Temperature | 80°C – 350°C |
| Water Inlet Temperature | 5°C – 60°C |
| Material Thickness | 0.6 mm – 1.2 mm |
| Condensate Outlet Design | Standard / custom drainage |
| Mounting Orientation | Vertical / horizontal |
These parameters can be customized depending on industry requirements, environmental conditions, and installation space.
The importance of using a Condensing Heat Exchanger lies in its ability to improve efficiency without upgrading fuel systems or significantly increasing operational costs.
Core benefits include:
Higher efficiency: Up to 15–20% more heat recovered compared to non-condensing systems.
Lower fuel consumption: Companies can reduce yearly energy bills.
Environmental protection: Lower exhaust temperatures and reduced CO₂ output.
Extended equipment lifespan: Properly designed heat exchangers reduce thermal shock and stabilize heating loads.
Compliance with regulations: Many regions require high-efficiency heat recovery systems for industrial boilers.
For manufacturers like Zhejiang Hec Machinery Co., Ltd., delivering reliable long-term performance is central to supporting customers in meeting these goals.
The system improves performance by:
Enhancing heat extraction through optimized flow structures
Reducing exhaust gas temperature to safe, eco-friendly levels
Improving combustion efficiency indirectly
Providing consistent thermal stability during peak demand
Reducing scaling and corrosion with advanced materials
This combination leads to more stable heating, lower operational noise, and more predictable maintenance cycles.
Below is a set of common questions to help customers better understand the product and its applications.
It is used to recover heat from exhaust gases, increasing the thermal efficiency of boilers, heaters, and industrial heat recovery systems. By condensing moisture in the exhaust, it extracts additional heat that would otherwise be lost.
It captures latent heat during condensation, enabling systems to achieve over 95% efficiency. This reduces fuel consumption and lowers operating costs across residential, commercial, and industrial equipment.
Stainless steel 316L and high-grade aluminum are commonly used due to their corrosion resistance, durability, and ability to withstand acidic condensate produced during operation.
Yes. Zhejiang Hec Machinery Co., Ltd. provides customized designs based on pressure levels, installation space, gas composition, and thermal requirements to ensure optimal performance in any system.
For detailed technical support, tailored specifications, or project-based consultation, you may contact Zhejiang Hec Machinery Co., Ltd. directly. Their engineering team provides guidance on heat exchange performance, material selection, and system design to ensure you choose the ideal Condensing Heat Exchanger for your application.