junkers

Junkers: Bosch Quality in HVAC and DHW

With over a century of history, Junkers has earned the trust of installers and renovators for its German quality and constant innovation. As part of the Bosch Group, the Junkers brand combines tradition and cutting-edge technology to offer heating and domestic hot water systems with maximum performance. Its global presence and extensive experience in the sector make Junkers synonymous with reliability. At GroupSumi, we offer a complete catalog of Junkers equipment so that professionals and maintenance companies have the best solutions in boilers, gas water heaters, electric water heaters, and more, ensuring comfort and efficiency in every project.

Advantages of Junkers Products

Experience and Support from the Bosch Group

Buying Junkers means benefiting from German technology and the backing of one of the largest industrial groups in the world, Bosch. The brand brings decades of experience in HVAC: its boilers and water heaters have been perfected over the years, incorporating Bosch's characteristic precision engineering. This translates into robust products with optimized designs and current functionalities (such as connectivity and smart controls in certain Bosch Junkers models). The confidence offered by a brand with such a long history is key for professionals: they know that behind every Junkers unit there is extensive technical support, long-term spare parts availability, and training for installers, thanks to the Bosch network. In summary, Junkers provides the peace of mind of working with a world-renowned brand with proven reliability.

Energy Efficiency and Consumption Savings

Junkers products stand out for their energy efficiency, a priority factor today. Their condensing boilers achieve very high seasonal efficiencies (over 90%), utilizing the latent heat of water vapor and reducing gas consumption. Likewise, Junkers gas water heaters feature modulation systems that adjust the flame to the actual hot water demand, avoiding unnecessary waste. In the electric range, Junkers Elacell water heaters incorporate high-density thermal insulation to maintain temperature with minimal electrical consumption. All this translates into lower energy bills for the end user. By choosing Junkers, you are opting for equipment designed to meet the most demanding ecodesign (ErP) standards, reducing emissions and promoting sustainable savings without compromising comfort.

Recognized Reliability and Safety

Junkers has positioned itself as a reliable and safe brand, something fundamental in gas and heat appliances. Their boilers and water heaters integrate multiple safety systems: flame sensors, overheating thermostats, forced gas evacuation, leak detection, etc., ensuring safe operation at all times. The reliability of Junkers is evident in the long lifespan of their products; many Junkers installations remain operational for decades with proper maintenance. This is the result of quality construction (durable heat exchangers, high-end Bosch components) and exhaustive factory testing. Installers especially value the low failure rate of Junkers and the speed of their technical service when needed. In everyday use, choosing Junkers ensures that your heating or DHW system will work when you need it most, without surprises, thanks to the robustness that has made this brand famous.

Wide Range for All Needs

One of the great advantages of Junkers is the variety of solutions it offers, covering virtually any HVAC or hot water need. The range of Junkers boilers includes everything from wall-mounted condensing boilers for apartments and houses (series like Junkers Cerapur, very popular for their balance between price and performance) to high-power floor-standing boilers for communities or light industry. In domestic hot water, Junkers offers sealed gas water heaters in multiple capacities (from compact models of 5-6 liters/minute ideal for a single water point, to 11-15 l/min to supply several showers simultaneously). If there is no gas supply, Junkers electric water heaters come to meet that need with options of 30L, 50L, 80L… up to 200L, ensuring hot water in homes without gas installation. Even in renewable energies, Junkers (Bosch) offers heat pumps for DHW and solar thermal systems that can be combined with their accumulators. Thanks to this variety, any professional can find the exact solution in Junkers for their project, whether installing heating in a single-family home, equipping a restaurant with hot water, or implementing aerothermal energy in a sustainable renovation.

Popular Junkers Products

Junkers Gas Boilers

Junkers boilers are recognized as some of the best on the market for domestic and light commercial heating. In particular, their condensing boilers stand out for their efficiency and quiet performance. Models like the Junkers Cerapur have become very popular among installers: they offer wide modulation (which avoids constant start/stop cycles), high-durability aluminum-silicon alloy heat exchangers, and compatibility with modulating controllers to optimize consumption. With typical outputs of 24kW to 30kW, a Junkers gas boiler can provide heating to homes up to 200 m² while supplying abundant DHW. Additionally, they feature intuitive control panels and, in recent models, wifi connectivity (with the Bosch EasyControl app) for remote control and scheduling. Junkers offers both wall-mounted and floor-standing solutions, and mixed boilers (heating + DHW) or heating-only, adapting to new installations or replacement of old equipment. If you are looking for reliable, efficient gas boilers with guaranteed technical support, Junkers is a safe choice.

Junkers Gas Water Heaters

Junkers is a pioneer in gas water heaters for hot water, providing equipment that combines performance and safety. Their sealed water heaters with a closed chamber take air from the outside and safely expel combustion gases, making them suitable for interiors complying with regulations. An example is the Junkers Hydronext water heater, highly demanded for its electronic ignition without a pilot flame (gas savings) and its digital display for adjusting the temperature degree by degree. Junkers water heaters are available for both natural gas and butane/propane, in capacities of 6, 10, 12, 15 liters per minute, covering from a small apartment to a home with several showers. They incorporate thermostatic modulation: the heater automatically regulates the power to maintain a constant outlet temperature even if the flow or inlet water temperature varies. This avoids the classic "very hot water" initial surge and provides immediate comfort. Due to their easy installation and reliability (many professionals recommend them for their low maintenance), Junkers water heaters remain top sellers for those needing instant hot water with a gas supply.

Junkers Electric Water Heaters

In places without a gas supply or as a backup during high demand periods, Junkers electric water heaters offer a practical DHW solution. The Junkers Elacell line is especially popular: water heaters of various capacities (from compact 30–50 L to large 150–200 L) designed with Bosch quality. These water heaters feature fast-recovery electric resistance and reinforced insulation to minimize heat loss. Some models include a scheduling function or savings modes, allowing water heating during off-peak electricity tariff hours to save on the bill. Installers appreciate the ease of installation of the Elacell, with robust supports and standardized connections, as well as their simple maintenance (the resistance and anode are accessible for replacement). Additionally, Junkers offers official spare parts like magnesium anodes and gaskets, ensuring the water heater can have a long lifespan with proper care. A Junkers electric water heater is synonymous with safe and stable hot water, ideal for homes, studios, offices, or small businesses that need to be independent of gas while maintaining comfort.

Junkers Controllers and Accessories

To complete the installation, Junkers offers modulating thermostats and chronothermostats optimized for their boilers, as well as other HVAC accessories. Notable is the Junkers modulating chronothermostat CW100 or the more modern Bosch EasyControl wifi controller, which allow intelligent heating management, programming temperatures by time slots, and obtaining maximum efficiency from the Junkers boiler. With these controllers, professionals can offer their clients an extra level of home automation and efficient control, integrating the boiler into a smart home. Additionally, the brand supplies flue kits, mounting accessories, and specific parts to ensure that the installation of a Junkers water heater or boiler is perfect and certified. The compatibility of components within the Bosch Junkers universe facilitates the installer's work and guarantees optimal performance of the complete system.

Applications of Junkers Products

Residential Use

In private homes, Junkers provides solutions tailored to each type of home. For an apartment or flat, a 24 kW Junkers wall-mounted boiler can perfectly cover radiator heating and hot water for bathrooms and kitchen, taking up little space in the gallery or kitchen. For larger houses or chalets, there are higher power boilers and auxiliary Junkers accumulators that guarantee simultaneous hot water in several bathrooms. Junkers electric water heaters are ideal in vacation homes, second homes, or apartments without gas: easy to use, they maintain the DHW supply simply. Residential users will appreciate the convenience of having instant hot water and stable heating, as well as the savings provided by Junkers' efficient technologies (for example, modulating boilers reduce consumption in mild periods). Additionally, the quietness and compactness of Junkers equipment allow them to integrate discreetly into the home. In any home renovation project, choosing Junkers means incorporating high-level thermal comfort with the guarantee of a leading brand.

Commercial Use

Many businesses and establishments trust Junkers for their HVAC needs. In restaurants and bars, having abundant domestic hot water is crucial for kitchens and bathrooms: a high-flow Junkers gas water heater or an industrial water heater can meet that continuous demand without failures. Small hotels and rural houses opt for higher capacity Junkers boilers or several boilers in cascade to serve their guests with uninterrupted hot water and heating. Another area is commercial premises and offices that require reliable heating: Junkers boilers, combined with radiators or fan coils, offer comfortable environments for customers and employees. Thanks to their high efficiency, Junkers systems help businesses save energy, reducing operational costs month by month, which is essential for profitability. Additionally, Bosch's extensive technical service network ensures that, in the event of any eventuality, the business receives quick support, minimizing downtime. Therefore, installers working on commercial renovations often recommend Junkers, knowing they will offer their business clients a durable, safe solution backed by specialists.

Industrial Use and Large Installations

In industrial or large-scale applications, the reliability of Bosch Junkers is especially valuable. Higher power boilers from the Bosch range (formerly Junkers) can heat warehouses or provide hot water for production processes. An example is the Junkers Suprapur floor-standing boilers, intended for boiler rooms in communities, public buildings, or industrial plants that require tens of kW of power. These boilers, with oversized heat exchangers and advanced control systems, guarantee performance even when operating 24/7. Additionally, in combination with renewable energies, Junkers equipment can be integrated into hybrid systems: gas boiler + solar thermal energy (Bosch Solar) + accumulation, to achieve total coverage with maximum efficiency. For large-scale DHW industrial installations, Junkers offers high-volume accumulators that work alongside the boilers to deliver large quantities of hot water in a short time (for example, for showers in sports centers or factories). Each industrial product from Junkers is backed by strict certifications and Bosch Thermotechnology know-how, which translates into safety and regulatory compliance in environments where there is no room for error.

Why Buy Junkers Products at GroupSumi

At GroupSumi, we specialize in providing professionals and companies with the best HVAC equipment, which is why Junkers holds a prominent place in our catalog. We offer you an optimized shopping experience for your projects, with benefits such as:

• Specialized Bosch Junkers Advice: Our team has up-to-date knowledge of the Junkers range. We help you choose between different boiler models (according to square meters to be heated, number of hot water services, etc.), size electric water heaters for a specific use, or decide which gas water heater best suits your client's needs. This expert guidance ensures that you invest in the right equipment from the start, avoiding cost overruns or lack of performance.
• Variety and Immediate Availability: At GroupSumi, you can find everything in one place: from a Junkers Cerapur boiler to a compatible modulating thermostat, or from a flue kit to spare parts like anodes for water heaters. We stock the most demanded Junkers products, meaning you can receive your order in record time. We understand that deadlines are tight in construction and maintenance, so we work to ensure you don't have to wait for the material to arrive.
• Competitive Prices and Conditions for Professionals: As a trusted online distributor, we negotiate directly with the brand to offer you adjusted prices on the Junkers range. Additionally, if you are an installer or buy in bulk, we have special rates and volume discounts that will allow you to improve your margins. Equip your projects with Junkers at the best market price and take advantage of our occasional promotions on boilers and water heaters.
• Ease of Purchase and Post-Sale Support: Our platform allows you to place your order easily and securely, with multiple payment and financing options if needed. After the purchase, we don't leave you alone: we have a customer service that will resolve any questions about the installation or warranty of Junkers products. We support you with technical documentation, user manuals, and manage incidents with the manufacturer if they arise, so you can focus on your work.

In short, choosing Junkers at GroupSumi ensures the success of your heating and DHW installations with high-end products and a distributor ally that understands the needs of the professional. Junkers provides quality, efficiency, and reliability, while GroupSumi offers you shopping convenience, price, and expert support. Trust the winning combination for your projects! Explore our Junkers catalog and equip your installations with the latest technology in boilers, water heaters, and water tanks from a world-leading brand.