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地暖机VS空气能：技术对比与优势剖析

福禄装修家居
2025-10-09 12:26

Understanding Ground-Source Heat Pumps: The Ultimate Guide Understanding Ground-Source Heat Pumps: The Ultimate Guide

In recent years, air-source heat pumps and ground-source heating systems have been gaining popularity in the home heating market as clean energy solutions. Ground-source heat pumps, as an upgraded version of air-source heat pumps, are increasingly being regarded as a premium choice by many users. Compared to air-source heat pumps, ground-source heating systems have significant advantages in terms of extreme cold adaptation, economic operation, comfort, and system stability. This article will delve into the technology, real-world data, cost analysis, comfort, and installation and maintenance of ground-source heat pumps.

Core Technology: The Breakthrough of EVI Jetting Enhancement

Ground-source heat pumps equipped with EVI (Enhanced Vapor Injection) technology is a key upgrade for coping with low-temperature environments. The principle is to use a combination of an enhanced compression system and an efficient cooler to achieve segmented compression and mixing of the refrigerant under different pressures, thus improving heating efficiency.

Dual-stage compression system: At -35℃ extreme cold, the ground-source heat pump can still maintain a COP value of 4.25, meaning 1 unit of electricity can produce 4.25 times the heat; whereas air-source heat pumps often have a COP below 2.5 at -10℃.

Dynamic thermal balance system: Optimizes refrigerant circulation, maintaining the outlet temperature at above 45℃ even at -35℃.

Full DC inverter technology: Automatically adjusts power according to the load, maintaining ultra-first-class energy efficiency at -20℃.

This means that the heating efficiency and low-temperature stability of ground-source heat pumps have far exceeded traditional air-source heat pumps.

Extreme Cold Testing: Stable at -35℃

Multiple extreme environment tests have proven the reliability of ground-source heat pumps:

Mohe Test: At -50℃ conditions, the indoor temperature remains stable at 22℃, whereas air-source heat pumps require auxiliary heating, resulting in a 300% increase in energy consumption.

High Altitude Test: At an altitude of 5,000 meters, a 70㎡ room consumes 38.6 degrees of electricity in 24 hours, saving more than 60% compared to electric heating.

Nordic Long-term Verification: Norwegian users have been using the system for 20 consecutive years, with pipes remaining unfrozen at -45℃ environments, significantly exceeding the stability of air-source heat pumps.

Defrosting Efficiency: AI intelligent defrosting takes only 40 seconds to complete, whereas air-source heat pumps frequently stop to defrost, resulting in a poor heating experience.

Long-term Economic Efficiency: 3-5 Years to Recoup Costs

From a life cycle perspective, the economic advantages of ground-source heat pumps are very significant.

Comparison of dimensions and differences between ground-source heat pumps and air-source heat pumps

Dimension Ground-Source Heat Pump Air-Source Heat Pump Initial Cost 50,000-80,000 yuan 70,000-90,000 yuan Annual Operation Cost (100㎡) 2,000-2,700 yuan 3,600-5,000 yuan Maintenance Cycle 20 years no maintenance Every 3 years to replace antifreeze 10-Year Total Cost About 70,000 yuan About 120,000 yuan

The key advantage lies in:

Energy saving: Saving 1,500-2,500 yuan annually, with a payback period of 3-5 years. No maintenance: The water circulation system does not require antifreeze, avoiding additional costs. Policy benefits: Northeast regions provide a maximum subsidy of up to 30% for ground-source heat pumps.

Comfort: Supported by Scientific Data

The comfort of ground-source heat pumps is not only an experience but also has scientific evidence:

Uniform temperature distribution: Floor radiation heating, with a vertical temperature difference ≤2℃/m, avoids "hot head and cold feet"; whereas air conditioning heating can have a top temperature of 35℃ and a ground temperature of only 18℃. Appropriate humidity: The water circulation maintains humidity between 45%-55%, 27% higher than air conditioning, reducing respiratory and skin dryness issues. Noise performance: The space-decoupling noise reduction technology keeps the running noise as low as 42dB, equivalent to a library environment; whereas the air-source heat pump outdoor unit is often ≥55dB. Health benefits: Compliant with the traditional Chinese medicine concept of "warm feet and cool head," which is more friendly to the elderly, children, and patients with rheumatism. Comfort Features of Ground-Source Heat Pumps

Comfort Features of Ground-Source Heat Pumps

Installation and Maintenance: The Foundation for Long-term Security

Installation points: The ground level flatness must be controlled within ±5mm, the boundary insulation strips must be tightly spliced, and the pipeline uses a 5-point positioning technology to ensure uniform heat transfer.

Maintenance advantages: The water circulation system does not require antifreeze, with 20 years of no maintenance; the system has built-in frost protection design, eliminating the need for frequent manual handling.

After-sales guarantee: The main unit has a warranty of 3-5 years, the piping has a warranty of 50 years, and the professional installation team ensures long-term stability.

Conclusion: The Inevitable Choice for High-end Living

In summary, from technology, testing, cost, and user experience, ground-source heat pumps undoubtedly demonstrate irreplaceable value in cold regions, long-term residential families, and high-quality life demand groups.

Cold regions: Stable operation at -35℃, far surpassing air-source heat pumps. Long-term residence: Payback in 3-5 years, saving more than 50,000 yuan in 10 years. Health needs: More comfortable for elderly, children, and families with rheumatism. Whole-house system: An integrated heating, cooling, dehumidification, and hot water solution, saving space and cost compared to air-source heat pumps plus water heaters.

For southern regions where winter temperatures are greater than -10℃, air-source heat pumps are still a cost-effective choice. However, if you追求extreme energy saving, silent operation, and low-temperature performance, ground-source heat pumps are the true high-end solution.

Air-source heat pumps solve the heating problem, while ground-source heat pumps bring comfort to the whole house.