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20 40kw wall mounted high efficiency plate heat exchanger underfloor heating gas combi boiler-2

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20-40kW Wall Mounted High Efficiency Plate Heat Exchanger Underfloor Heating Gas Combi Boiler

20-40kW Wall Mounted High Efficiency Plate Heat Exchanger Underfloor Heating Gas Combi Boiler, Helping You Achieve Reliable Home Heating, Instant Hot Water and Lower Energy Consumption

Description

Reliable Hot Water for Kitchens and Bathrooms

Designed to meet the daily hot water needs of modern households, the boiler provides a stable supply for kitchens, bathrooms and multiple water outlets, ensuring you enjoy comfort throughout your home.

Perfect for Multi-Bathroom Homes

Whether your family is showering, washing dishes or doing laundry at the same time, you can enjoy consistent hot water performance without sudden temperature fluctuations.

360° Sealed Quiet Operation

The fully sealed combustion chamber design minimizes operating noise while improving safety and efficiency, allowing you to enjoy a peaceful and comfortable living environment.

Advanced Noise Reduction Technology

Integrated sound insulation, vibration reduction and optimized airflow design help create a quieter home, making it ideal for apartments, villas and family houses.

Attention

Multiple Safety Protection System

Built with comprehensive safety technologies to protect you and your family during everyday operation, including:
✔ Anti-Freeze Protection
✔ Dry-Burn Protection
✔ Overheat Protection
✔ Flame Failure Protection
✔ Water Pressure Protection
✔ Pump Anti-Seizure Protection
✔ Leakage Protection
✔ Automatic Fault Detection
✔ Safety Pressure Relief

Dual-Purpose Heating and Hot Water

One compact system provides both central heating and domestic hot water, helping you save space while meeting all your household comfort requirements.

Compatible with Underfloor Heating and Radiators

Works seamlessly with underfloor heating systems and radiator networks, giving you flexible installation options for various home layouts and heating preferences.

Adjustable Room Temperature Control

You can easily set your preferred indoor temperature according to weather conditions and personal comfort needs, creating a warm and enjoyable living environment during winter.

Intelligent Constant Temperature Technology

Advanced sensors continuously monitor water and room temperatures, automatically adjusting system output to ensure consistent comfort.

Fast Hot Water Delivery

Quick-response heating technology delivers hot water rapidly, reducing waiting time and enhancing convenience for daily household use.

Save Water and Gas Consumption

Efficient heating performance shortens water delivery time and reduces unnecessary energy waste, helping you lower operating costs.

Rapid Heating Performance

The powerful heating system quickly warms living spaces after startup, allowing you to enjoy comfort sooner during cold weather.

Even and Comfortable Underfloor Heating

When connected to an underfloor heating system, heat is distributed evenly across the floor, creating a comfortable environment without cold spots.

Excellent Heat Retention

The heating system provides stable warmth with strong heat retention, helping maintain a comfortable indoor temperature for longer periods.

Space-Saving Wall-Mounted Design

The compact wall-hung structure frees up valuable floor space and integrates neatly into kitchens, utility rooms and service areas.

Easy Installation and Maintenance

Designed for convenient installation and servicing, making it suitable for both new construction projects and heating system upgrades.

Ideal for Apartments

A practical solution for apartment owners looking for efficient heating and hot water without sacrificing living space.

Perfect for Villas and Family Houses

Provides whole-home heating and reliable hot water for larger households, ensuring comfort in every room throughout the year.

Suitable for Cold Winter Climates

The built-in anti-freeze system helps protect internal components during freezing temperatures, making it suitable for regions with long heating seasons.

Comfortable Living Starts with You

Whether you live in an apartment, villa or family house, this gas combi boiler helps you enjoy reliable heating, continuous hot water and year-round comfort for the entire family.

Parameter
Parameter SB1P20-G SB1P24-G
Model SB1P20-G SB1P24-G
Gas Type & Supply Pressure Natural Gas 12T / 2000Pa Natural Gas 12T / 2000Pa
Applicable Gas Pressure Range 1500Pa – 3000Pa 1500Pa – 3000Pa
Rated Heat Input 20kW 24kW
Rated Heat Output 18.1kW 21.6kW
Minimum Heat Input 8kW 9.6kW
Minimum Heat Output 6.8kW 8.16kW
Radiator Heating Temperature Range 30°C – 85°C 30°C – 85°C
Underfloor Heating Temperature Range 30°C – 60°C 30°C – 60°C
Heating System Pressure Range 0.05MPa – 0.3MPa 0.05MPa – 0.3MPa
Expansion Tank Capacity 6L 6L
Maximum Heating System Water Volume 100L 100L
Pump Head 5m 5m
Recommended Heating Area 80㎡ – 108㎡ 80㎡ – 108㎡
Power Supply 220V / 50Hz 220V / 50Hz
Maximum Electrical Input Power 120W 120W
Coaxial Air Intake & Exhaust Flue Φ60 / Φ100 mm Φ60 / Φ100 mm
Waterproof Rating IPX4 IPX4
Product Dimensions (W × H × D) 740 × 400 × 270 mm 740 × 400 × 270 mm
Package Dimensions 810 × 460 × 310 mm 810 × 460 × 310 mm
Net Weight / Gross Weight 30kg / 33kg 31kg / 34kg
Desire

22 Years of Manufacturing Experience

You work with a company that has been focused on home appliance development and manufacturing for over 22 years. This experience allows us to understand market demands, improve product performance, and maintain stable production standards. Whether you are launching a new product line or expanding your existing business, you can rely on a partner with proven industry expertise.

Strict ISO 9001 Quality Management

You can have confidence in every product you receive. Our ISO 9001-certified quality management system covers every stage of production, from raw material inspection and component testing to in-process quality control and final product inspection. This helps ensure consistent quality and reduces the risk of after-sales issues for your business.

Trusted by Customers Worldwide

You benefit from products that are already serving customers across North America, South America, Europe, Russia, Africa, and other international markets. This global experience helps us better understand different market requirements and allows you to source products with proven acceptance and performance.

One-Stop OEM & ODM Service

You can simplify your sourcing process with complete OEM and ODM support. From product design and component selection to packaging, branding, and final production, our team works closely with you to develop products that match your market needs and brand positioning.

Modern Production Facilities

You benefit from advanced production equipment and well-organized manufacturing lines designed to improve efficiency and product consistency. This helps ensure stable quality and reliable production schedules, even during peak seasons.

Professional Research and Development Team

You gain access to an experienced engineering team focused on product innovation and continuous improvement. Whether you need product customization, technical upgrades, or new product development, we can help turn your ideas into market-ready solutions.

Comprehensive Quality Testing

You receive products that go through multiple testing procedures before shipment. These include performance testing, safety inspections, durability checks, gas leakage testing, and final quality verification. Our goal is to make sure every unit performs as expected when it reaches your customers.

Certification Support for Global Markets

You can source products designed to meet the requirements of different countries and regions. Our team understands international compliance standards and can support certification needs to help you enter new markets more efficiently.

Flexible Customization Options

You can customize product appearance, technical specifications, packaging, manuals, labels, logos, and other details based on your business requirements. This flexibility helps you create products that stand out in your target market.

Stable Production Capacity

You can count on us whether you need a small trial order or a large-volume purchase. Our manufacturing capacity is designed to support growing businesses and long-term cooperation without compromising quality or delivery performance.

Efficient Export and Logistics Support

You benefit from years of export experience and professional logistics coordination. From packaging and documentation to shipment arrangements, our team helps ensure your orders arrive safely and efficiently.

Reliable Spare Parts Supply

You can reduce maintenance concerns with long-term spare parts availability. We provide support for replacement components and accessories, helping you maintain product performance and improve customer satisfaction after purchase.

Responsive After-Sales Service

You are supported by a dedicated team that responds quickly to questions and technical inquiries. Whether you need product information, troubleshooting assistance, or spare parts support, we are committed to helping you resolve issues efficiently.

Multi-Market Business Support

You work with a partner familiar with different customer preferences, product standards, and business practices across global markets. This experience helps you reduce sourcing risks and improve your competitiveness.

Long-Term Partnership Focus

You gain more than a product supplier. You gain a manufacturing partner committed to supporting your business growth, helping you improve operational efficiency, strengthen your brand, and build long-term success in your market.

Pain

High After-Sales Rate

You need products that perform reliably after they reach your customers. Vangood follows strict quality control procedures throughout the entire production process, from component inspection to final product testing. This helps You reduce returns, warranty claims and after-sales costs while improving customer satisfaction.

Unstable Quality

You should never have to worry about inconsistent product quality from one order to the next. Vangood operates under a comprehensive quality management system to ensure every batch meets the same standards, giving You confidence in every shipment.

Insufficient Certifications

You may face challenges when entering different markets without the proper certifications. Vangood provides CE-certified products and supports compliance requirements, helping You bring products to market more smoothly and with fewer obstacles.

Unstable Water Temperature

Your customers expect a comfortable and reliable hot water experience. Vangood uses stable heating and combustion technology to help You provide consistent hot water performance in a wide range of operating conditions.

Poor Low Water Pressure Performance

Many outdoor and remote locations have limited water pressure. Vangood water heaters are designed to operate under low water pressure conditions, allowing You to serve camping, RV, caravan, farm and off-grid markets more effectively.

High Gas Consumption

Rising energy costs can impact both You and Your customers. Vangood focuses on improving thermal efficiency and optimizing combustion performance, helping You offer products that deliver reliable hot water while reducing fuel consumption.

Difficult Installation

Complicated installation can lead to customer complaints and additional support requests. Vangood provides complete accessories, user-friendly designs and clear installation guidance, making setup easier for You and Your customers.

Limited Spare Parts Support

Reliable spare parts availability is essential for long-term business success. Vangood maintains ongoing support for key components and accessories, helping You simplify maintenance, repairs and after-sales service.

Long Lead Times

You need a supplier that can keep up with your business schedule. With mature production management and a stable supply chain, Vangood helps You reduce delays and maintain consistent inventory levels throughout the year.

Limited OEM & ODM Capabilities

Every market is different, and Your products should reflect that. Vangood offers flexible OEM and ODM services, allowing You to customize logos, packaging, product specifications and appearance to better match Your brand and target customers.

Transportation Damage Risks

Damaged products create unnecessary costs and customer dissatisfaction. Vangood uses reinforced packaging solutions and export-ready packing standards to help You minimize shipping damage and ensure products arrive in good condition.

Slow After-Sales Response

When issues arise, You need support you can count on. Vangood provides responsive communication and professional customer service, helping You get answers quickly and resolve problems efficiently so Your business can keep moving forward.

Action

Take Action Now

If You are looking for a reliable gas water heater supplier, now is a great time to get in touch. Simply share Your product requirements, target market or project details, and our team will provide detailed specifications, product recommendations and suitable OEM/ODM solutions to help You move forward with confidence.

Request a Quote

Whether You are sourcing for distribution, retail, e-commerce or project procurement, You are welcome to send us an inquiry at any time. We will provide competitive pricing, product information and professional support, helping You evaluate the best solution for Your business needs.

Start Your Business Partnership

You deserve a manufacturing partner that supports Your long-term growth. By working with Vangood, You gain access to stable production capacity, reliable product quality and responsive service. We are committed to building long-term cooperation that helps Your business grow steadily and sustainably.

Get Customized Solutions

Every market has different requirements, and every brand has unique goals. If You need customized specifications, packaging, logos, accessories or product features, simply share Your ideas with us. Our team will work closely with You to develop a solution that fits Your market and strengthens Your brand identity.

Contact Us Today

If You have questions about products, certifications, lead times or customization options, our team is ready to help. You can contact us directly for fast communication, technical support, product catalogs and professional recommendations based on Your specific requirements.

Discuss Your Project With Us

Whether You are launching a new product line, expanding Your distribution network or sourcing for a large project, we would be happy to learn more about Your plans. By understanding Your business goals, we can recommend the most suitable products and services to help You achieve better results.

Grow Your Business With Confidence

Choosing the right supplier can make a significant difference to Your success. With years of manufacturing experience, strict quality control and global export expertise, Vangood is ready to support You with reliable products and dependable service every step of the way.

FAQ

Q: Are you a trading company or a manufacturer?
A: We are a professional manufacturer located in Dongfeng Town, Zhongshan City, Guangdong, China. With more than 22 years of experience in home appliance production and R&D, we specialize in gas water heaters, electric water heaters, gas boilers, gas stoves, range hoods, and other kitchen appliances. We warmly welcome customers from around the world to visit our factory and discuss cooperation opportunities.

Q: What is your MOQ?
A: Our MOQ depends on the product model and customization requirements. We offer flexible MOQ options and support trial orders, allowing you to evaluate product quality and market potential before placing larger orders.

Q: What is your lead time?
A: For first-time orders, the production lead time is usually 35–45 days after confirming all order details. For repeat orders, the lead time is typically 25–35 days. The exact schedule depends on order quantity, product specifications, and customization requirements.

Q: Do you provide samples? Are they free?
A: Yes, we provide samples for quality evaluation and testing. The sample price is usually 1.5 times the unit price. However, the sample cost can be refunded in your first bulk production order, helping reduce your initial purchasing risk.

Q: What are your payment terms?
A: For payments ≤ USD 1,000, 100% payment is required in advance. For payments ≥ USD 1,000, we accept 30% T/T deposit in advance, with the balance paid before shipment. We can also accept 100% L/C at sight for qualified orders.

Q: Do you support OEM and ODM services?
A: Yes. We provide comprehensive OEM and ODM services, including logo printing, packaging design, product appearance customization, technical specification adjustments, and function development. Our professional R&D team can help create products tailored to your market needs.

Q: Can you provide customized packaging?
A: Yes. In addition to standard export packaging, we offer customized color boxes, gift boxes, branded cartons, instruction manuals, labels, and private packaging solutions to support your brand development.

Q: What is your warranty period?
A: We provide a one-year warranty for non-human quality issues. Our technical team also offers after-sales support and spare parts assistance to help ensure long-term product performance.

Q: What certifications do your products have?
A: Our factory operates under a strict ISO 9001 quality management system. Products are manufactured according to international standards, and relevant certifications can be provided based on your target market requirements.

Q: Do you supply spare parts?
A: Yes. We provide long-term spare parts support for maintenance and after-sales service. Spare parts can be supplied together with product orders or separately according to customer requirements.

Q: Do you provide market support?
A: Yes. We can provide product photos, videos, technical specifications, catalogs, promotional materials, and marketing suggestions to help you promote products and expand your local market.

Q: Are all products tested before shipment?
A: Yes. Every product undergoes strict inspections and testing before shipment, including raw material inspection, production process control, safety testing, performance testing, and final quality verification.

Q: How do you control product quality?
A: We follow a complete ISO 9001 quality management system. Quality control covers every stage from raw material sourcing, component inspection, assembly, and product testing to final packaging, ensuring consistent and reliable product quality.

Get a Free Quote

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20 40kw wall mounted high efficiency plate heat exchanger underfloor heating gas combi boiler-11
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