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China Maanshan Leonon Energy Saving Technology Co., Ltd.
About Us
Maanshan Leonon Energy Saving Technology Co., Ltd.
As one of the largest heat pump manufacturers in China, Leomon produces a wide range of air source heat pumps for residential and commercial applications, including:* CO2 heat pumps* High-temperature heat pumps* Inverter heat pumps* Pool heat pumps* Heat pump water heaters* Ground-source heat pumpsOur heat pumps comply with international standards such as EN14511 and EN14825, and hold comprehensive certifications including CE, ErP, Keymark, MCS, CB, and SAA.Leomon boasts three major production ...
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Lastest company news about What Factors Influence the Decision to Repair or Replace An Air Source Heat Pump?
What Factors Influence the Decision to Repair or Replace An Air Source Heat Pump?

2026-07-27

The decision to repair or replace an air source heat pump (ASHP) depends on a combination of factors, including financial, technical, and comfort considerations. Here are the key elements to consider when making this decision:   1. System Lifespan If your system is 10 to 15 years old or more, its reliable lifespan is nearing its end, making system replacement a more practical long-term investment.   2. Repair Costs vs. Replacement Costs 1) The 50% Rule: If the estimated repair cost is 50% or more of the price of a new system, replacement is generally recommended to avoid wasting money on aging equipment. 2) If the cost exceeds $5,000, you should seriously consider replacement; if it's below $5,000, repair is usually a wiser choice. 3. Frequency of Failure Frequent failures strongly indicate that cumulative repair costs will quickly exceed the investment in a new, reliable device.   4. Energy Efficiency and Operating Costs 1) Modern systems can improve energy efficiency by 20% to 40%, which can significantly reduce your monthly utility bills and help offset the upfront costs of replacing the system. 2) A sudden, unexplained spike in energy bills is usually a warning sign of component failure or decreased efficiency.   5. Refrigerant Type and Environmental Regulations 1) Older heat pumps may use R-22 (Freon) refrigerant, which is being phased out due to its ozone-depleting properties. 2) Newer systems use environmentally friendly refrigerants, such as R-410A or the newer R-454B standard, which are more sustainable and have lower maintenance costs.   6. Comfort and Performance Degradation Pay attention to the comfort of your home. Warning signs that repairs may only provide temporary relief include: insufficient heating or cooling, continuous operation but failure to reach the set temperature, frequent start-stop cycles (starting and stopping every few minutes), unusual grinding or screeching sounds, or outdoor unit icing.   7. Warranty Coverage 1) If your air source heat pump is 5 to 10 years old, it may still be under the manufacturer's warranty. 2) Warranties typically cover the cost of major replacement parts (such as the compressor), making repairs significantly less expensive compared to out-of-warranty systems.   8. Safety Issues Safety is always paramount. If your system poses any potential hazard—such as electrical problems, a burning smell, or a carbon monoxide poisoning risk from auxiliary emergency heaters—replacement is the only sensible option.   9. Available Incentives and Grants Homeowners can often take advantage of federal tax credits, state grants, and local utility company incentives, which can add up to thousands of dollars in savings, effectively reducing the net cost of a new installation.   Decision Matrix Summary Repair is recommended if the following conditions are met: the system is less than 10 years old, repair costs are low (below the $5,000 threshold), it is well-maintained, and it is still under warranty.   Replacement is recommended if the following conditions are met: the system is over 15 years old, repair costs exceed 50% of the price of new equipment, it uses R-22 refrigerant, it experiences frequent malfunctions, or you are eligible for substantial energy-saving subsidies.
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Lastest company news about How Do You Clean the Filter of An Air Source Heat Pump?
How Do You Clean the Filter of An Air Source Heat Pump?

2026-07-26

Cleaning the filter of an air source heat pump is a simple DIY task that can significantly improve system efficiency and indoor air quality while extending the equipment's lifespan.   Here is a step-by-step guide to cleaning it safely and effectively: Step 1: Turn off the system For safety and to prevent the fan from blowing dust around, turn off the heat pump first.   Step 2: Locate the filter The filter is always located on the indoor unit (air handler), never on the outdoor condensing unit.   Step 3: Remove the filter Carefully slide the filter out.   Step 4: Check the filter type Disposable filters (fiberglass or pleated paper): These are not washable. If they are dirty, clogged, or have been used for more than 1–3 months, replace them with a new filter of the exact same size and MERV rating.   Step 5: Clean reusable filters 1) Vacuum first: Take the filter outside or near a trash can. Use a vacuum cleaner with a soft brush attachment to gently remove loose dust, pet hair, and debris from both sides of the filter. 2) Rinse with water: Take the filter to a sink or bathtub, or use a garden hose. Rinse with warm water.   Step 6: Dry thoroughly This is the most critical step. The filter must be completely dry before reinstallation. Shake off any excess water.   Step 7: Reinstall the filter Once the filter is completely dry, slide it back into the slot. Ensure the airflow indicator arrow points toward the air handler/blower motor (i.e., the direction of airflow).   Step 8: Turn the system back on Restore power at the circuit breaker (if it was previously cut off) and reset the thermostat to the desired heating or cooling mode. Expert tips for heat pump filter maintenance 1. Frequency: Check the filter once a month. Clean or replace it every 1 to 3 months, depending on usage.   2. Do not blindly upgrade the MERV rating: When replacing the filter, follow the manufacturer's recommended MERV rating (usually MERV 8–11).   3. Outdoor Unit Maintenance: Although the filter is located indoors, be sure to keep the area around the outdoor unit clean. Remove fallen leaves, snow, and debris (maintaining a clearance of at least 2–3 feet) to ensure unobstructed airflow.   Tip: If issues such as weak airflow, abnormal noise, or rising energy costs persist after cleaning the filter, please contact a licensed HVAC technician for a professional inspection.
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Lastest company news about What Happens During the Installation of An Air Source Heat Pump?
What Happens During the Installation of An Air Source Heat Pump?

2026-07-20

Installing an air source heat pump can take several days, as there are many factors to consider. Here is an overview of what you need to know:   1. The air source heat pump unit itself must be installed outdoors on a level concrete base. Unlike ground-source heat pumps, no excavation is required. Installers will ensure there is adequate airflow and that the unit is positioned at a suitable distance from neighbors.   2. Installers will connect the heating flow and return pipes, as well as the electrical wiring, to the exterior of your home. Once this is done, they will move indoors to continue the installation. 3. Most heat pumps require the installation of a new hot water tank inside the home.   4. In most cases, you will need to replace some or all of your radiators. The main exception is if the house is already set up for a heat pump; in that scenario, installers would replace existing radiators and connect the new air source heat pump. Alternatively, if you use underfloor heating, the installers would either install a new system or connect the air source heat pump to your existing one.   5. All controls and thermostats will need to be installed inside your home.   6. Installers will tidy up the site and explain how the system works. They will also start up the system to ensure it operates according to the manufacturer's standards.   As you can see, installing an air source heat pump is a significant undertaking. However, the impact on your home depends on your current system. If your existing pipework is relatively new and compatible with the new setup, the installation might take just 2 to 3 days with minimal disruption to your daily life.   Conversely, if your pipes and radiators need replacing, work will be required in every room, involving the lifting of carpets and flooring.   Regardless of your current system, it will need to be disconnected while the new system is being installed. This means you will be without heating and hot water for at least one day.
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Lastest company news about Consequences of Neglecting Air Source Heat Pump Maintenance
Consequences of Neglecting Air Source Heat Pump Maintenance

2026-07-17

An air source heat pump (ASHP) is a highly efficient, eco-friendly solution for year-round home comfort, providing heating in the winter and cooling in the summer. However, due to their heavier operational loads and extended run times, they require regular maintenance.   Neglecting ASHP maintenance might seem like a way to save time and money in the short term, but it ultimately leads to a host of problems. Here are the primary risks associated with ignoring maintenance needs:   1. Sharp Drop in Energy Efficiency and Skyrocketing Electricity Bills The most immediate consequence of neglecting maintenance is a decline in energy efficiency.   1) Restricted Airflow: Dirty air filters and clogged outdoor coils force the system to work harder to intake air and transfer heat.   2) Refrigerant Issues: Insufficient refrigerant—often caused by undetected minor leaks—severely impairs the system's ability to absorb and release heat.   3) The Result: A poorly maintained ASHP may consume 20% to 30% more energy to achieve the same level of comfort. Any energy costs you "saved" by skipping maintenance will quickly be offset by rising monthly electricity bills. 2. Frequent Breakdowns and High Repair Costs Regular maintenance allows technicians to identify and resolve minor issues before they escalate into catastrophic failures. Without it, small problems accumulate:   1) Loose electrical connections can cause control boards to burn out.   2) Slightly worn capacitors can lead to compressor failure.   3) Inadequate lubrication can cause motor bearings to seize.   Once these components fail, you face steep emergency repair costs. Even worse, if the system breaks down during the sweltering heat of summer or the freezing cold of winter, you might have to wait days for necessary parts and a technician, leaving you without heating or cooling in the meantime.   3. Significantly Reduced System Lifespan A well-maintained ASHP can last 15 to 20 years (sometimes even longer). Because ASHPs operate year-round—functioning as air conditioners in the summer and heaters in the winter—they experience roughly twice the wear and tear of a standard air conditioner. If maintenance is neglected, the excessive strain placed on the compressor and other moving parts can cause the system to burn out in as little as 7 to 10 years, forcing a premature replacement that costs thousands of dollars.   4. Voiding the Manufacturer's Warranty Many homeowners are completely unaware of this risk. Most major air source heat pump manufacturers require proof of annual professional maintenance to keep the equipment warranty valid.   If your compressor or a major component fails during the fourth year of a 10-year warranty, the manufacturer will likely ask for maintenance records. If you cannot provide them, the warranty will be voided, and you will have to pay the full cost of replacement parts and labor out of pocket.   5. Reduced Indoor Comfort and Air Quality A poorly functioning heat pump will struggle to maintain consistent temperature and humidity levels.   1) Uneven Heating and Cooling: You may notice temperature fluctuations throughout your home and frequent system starts and stops (short cycling).   2) Poor Air Quality: If filters are never changed and the indoor evaporator coil is never cleaned, the system will circulate dust, pet dander, pollen, and potentially mold spores throughout the house.   3) Unpleasant Odors: Moisture and debris accumulating inside the unit can foster mold growth, causing a musty smell whenever the system starts up.   6. Safety Hazards and Property Damage Although heat pumps are generally very safe, severe neglect can lead to genuine safety hazards:   1) Electrical Fires: Worn wiring, corroded contacts, or rodent damage inside the outdoor unit can cause arcing or short circuits, creating a fire risk.   2) Water Damage: In winter, air source heat pumps rely on a defrost cycle to melt ice accumulating on the outdoor coil. If the defrost sensor or reversing valve malfunctions and isn't addressed, the coil can freeze into a solid block of ice; as it melts, water may overflow the drain pan and seep into the home's foundation or walls.   3) Refrigerant Leaks: Undetected leaks not only reduce system efficiency but can also release environmentally harmful refrigerant into the atmosphere. The Bottom Line   Treating heat pump maintenance as an "optional expense" is ultimately counterproductive. While annual routine maintenance typically costs only a few hundred dollars, it ensures lower energy bills, preserves warranty coverage, maintains home comfort, and extends the system's lifespan.
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Latest company case about Leomon Ships 10 Sets of 45kW Air Source Heat Pumps to Italy
Leomon Ships 10 Sets of 45kW Air Source Heat Pumps to Italy

2025-09-09

On September 9, 2025, Leomon successfully delivered 10 sets of 45kW air source heat pumps to Italy. This delivery further demonstrates Leomon's continued commitment to the Italian residential heating market and its strong supply chain capabilities. Precision Products Designed for Specific Needs The 45kW air source heat pumps delivered this time were specifically designed and manufactured to meet the needs of residential heating. These products strictly adhere to EU standards, offering superior durability and reliability to ensure they meet the stringent requirements of local residential heating and hot water services.   Reliable Capability to Serve the Global Market As one of China's leading air source heat pump manufacturers, Leomon possesses mature production and export capabilities. With its strong production capacity and export-standard wooden packaging, the company ensures that its products are safely delivered to customers worldwide. Leomon's heat pump products have been exported to more than 30 countries and regions, including the United States, Germany, South Africa, and India, accumulating extensive experience in global transportation.   About Leomon Leomon offers a variety of heat pumps, including air source heat pumps, pool heat pumps, high-temperature heat pumps, and CO2 heat pumps. The company's heat pumps range from 10kW to 150kW and hold comprehensive certifications such as CE, ErP, Keymark, MCS, CB, and SAA. Leomon is committed to providing high-quality, highly reliable products and customized solutions to customers worldwide.
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Latest company case about Leomon Delivers 15 Sets of 6kW Air Source Heat Pumps to the Netherlands
Leomon Delivers 15 Sets of 6kW Air Source Heat Pumps to the Netherlands

2025-05-22

In May, Leomon completed the delivery of 15 sets of 6kW air source heat pumps to the Netherlands. This delivery marks another milestone in Leomon's ongoing collaboration with international heating operators and demonstrates the company's ability to provide large-scale, reliable supply solutions for demanding residential and commercial heating projects.   From design to delivery, the 6kW air source heat pumps underwent a complete industrial process on Leomon's production line. Advanced welding technology enhances the reliability of the unit system, potentially preventing refrigerant leaks. Axial fans are available, offering powerful airflow while maintaining low operating noise. Rigorous quality control procedures, including material verification, dimensional inspection, low-temperature testing, and noise testing, ensure that each air source heat pump meets stringent performance requirements before leaving the factory. To ensure the integrity of the products during transportation, the logistics arrangements for this shipment were carefully coordinated. Each air source heat pump was properly packaged to prevent corrosion and deformation and loaded strictly according to operating procedures. Leomon's supply chain team worked closely with logistics partners to optimize shipping routes and schedules, ensuring the safe and timely arrival of the air source heat pumps to support residential heating and hot water needs in the Netherlands.   This delivery will directly support local residential heating and hot water needs, helping to improve heating efficiency and reduce carbon emissions. For Dutch heating operators, replacing existing boilers with 6kW air source heat pumps means better heating stability, more efficient energy use, and longer maintenance intervals—all crucial for both residential and commercial heating.   Leomon's export business spans numerous international markets, including the United States, South Africa, Mexico, Turkey, India, the Netherlands, Kenya, Algeria, Mauritania, Iran, Brazil, Australia, Bangladesh, and Ethiopia. With extensive experience, Leomon can tailor technical and logistical solutions to different climatic conditions while strictly adhering to relevant standards and operational requirements.   Leomon thanks its partners and customers in the Netherlands for their trust and looks forward to continuing technical cooperation and providing after-sales support. For information on specifications, power, or future orders, please contact the Leomon sales team – we are ready to provide you with customized air source heat pump solutions to meet your project needs.
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Latest company case about Leomon Ships 36 Sets of 12kW Air Source Heat Pumps to the US
Leomon Ships 36 Sets of 12kW Air Source Heat Pumps to the US

2025-02-15

On February 15, 2025, Leomon successfully delivered 36 sets of 12kW air source heat pumps to the United States. This delivery marks another significant step forward in Leomon's efforts to expand its position in the international heating and hot water equipment market.   The 12kW air source heat pump is a key product for Leomon, renowned for its energy efficiency, intelligent control, and low-temperature heating. These air source heat pumps are designed to meet the stringent requirements of modern heating systems, ensuring safe and efficient home heating. This shipment to the US underscores the growing demand for high-quality heating equipment in the North American market and reflects Leomon's commitment to providing reliable products to customers worldwide. Leomon has become a trusted supplier in the heating industry, renowned for its innovation and quality. The company possesses advanced production facilities and rigorous quality control processes to ensure that every product meets the highest standards. The 12kW air source heat pump is no exception; it underwent extensive testing and certification before being approved for international export.   This export to the United States is part of Leomon's overall strategy to strengthen its position in the global market. The company has consistently collaborated with international partners and participated in industry exhibitions to showcase its products and capabilities. The successful delivery of the 12kW air source heat pump fully demonstrates Leomon's ability to meet customer needs and adapt to the evolving demands of the rail industry.   As Leomon continues to expand its global business, the company remains committed to innovation, quality, and customer satisfaction. This delivery of 36 sets of 12kW air source heat pumps to the United States marks a significant milestone for Leomon in its pursuit of a leading position in the international heating equipment market.
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WHAT CUSTOMERS SAYS
Mr. Simon
Great heat pumps! Stable performance, economical, keep my swimming pool warmer I will order again!
Mr. Geikki
This was the coldest winter in 30 years, with temperatures dropping to -20°C in most areas and even as low as -25°C in some places. Most heat pumps froze and stopped working. Electricity and gas bills have skyrocketed this winter. Thankfully, my Leomon heat pump is still working well, keeping my home warm.
Mr. Döhler
I installed a Leomon-19A. I considered it more of an adventure. After all, I live in Muldenhammer. I was attracted by the price and the very low installation costs. The results are amazing. The heat pump operates in temperatures as low as -20°C without any heating element support. Hot water is also available in a very short time.
Ms. Emma
Leomon is arguably the best manufacturer we've encountered in the Chinese heat pump industry. We're fortunate to be working with such an outstanding manufacturer. We look forward to even better cooperation next time!
Ms. Elsie
The sales manager was very enthusiastic and professional. They gave us a great discount on bulk heat pump orders. We feel very confident working with this heat pump company. Thank you. We look forward to further cooperation in the future.
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