Junkers Hydro 4200 Natural Gas Atmospheric Water Heater

The Junkers Hydro 4200 WR10-4 KB 23 JU, reference 7736504534, is a natural gas atmospheric water heater with a capacity of 10 liters per minute, belonging to the new generation of low NOx heaters that comply with the European ErP 2020 standards. Its exclusive, compact, and efficient design makes it an ideal solution for replacing old models without the need to modify the existing gas exhaust installation.

This model incorporates advanced technologies such as automatic flame modulation, which adjusts gas consumption according to demand, optimizing performance and reducing energy costs. The electronic ignition with batteries allows for a quiet and smooth start-up without the need for electrical connection. The device also features an LED operation indicator and several internal safety sensors for greater reliability in daily use.

With an energy efficiency class A and a performance of up to 88%, the Junkers Hydro 4200 is designed to offer greater comfort, efficiency, and environmental respect, significantly reducing nitrogen oxide (NOx) emissions to 35 mg/kWh.

Highlighted Advantages

• Low NOx: reduced emissions to comply with environmental regulations
• Easy installation: compatible with traditional heater gas outlets
• Automatic ignition: with 2 batteries, no electrical connection
• Flame modulation: greater control, efficiency, and savings
• LED indicator: to check the device status at a glance
• Installable indoors or in protected outdoor areas (balconies, terraces)

Technical Specifications

• Type: Low NOx atmospheric heater
• Gas: Natural
• Hot Water Capacity: 10 L/min
• Useful Power: 7.9 – 17.4 kW
• Natural Gas Consumption: 2.3 m³/h
• Energy Efficiency: Class A (up to 88%)
• NOx Emissions: 35 mg/kWh
• Ignition: Battery-powered electronic (2 × type D)
• Exhaust Type: Natural draft
• Exhaust Diameter: 110 mm
• Dimensions (H × W × D): 655 × 310 × 225 mm
• Weight: Approx. 10–12 kg

Installation and Regulations

• Easy replacement of old models without changing the exhaust outlet
• Installation allowed in protected indoor and outdoor areas
• No coaxial double-flow pipe required
• Not allowed for new construction (according to ErP 2020 regulations)

Available Options

• 11-liter model: WR11-4 KB (Ref. 7736504534)
• Outdoor version: WR10-4 KBR (Ref. 7736507057), dimensions 580 × 310 × 225 mm

The Junkers Hydro 4200 10L heater is a reliable, efficient, and economical solution for domestic hot water production in homes with existing installations. Thanks to its compact design, easy installation, and low-emission technology, it offers the perfect balance between sustainability, performance, and energy savings.