The Nefit ProLine III is a new compact combi boiler available in three models. The unit is designed for hybrid heating, is H₂-ready, and is easy to maintain.
The stainless steel heat exchanger with a cooled burner door in the ProLine was developed entirely in-house by Nefit Bosch. According to the manufacturer, it contributes to higher efficiency, lower emissions, and less wear and tear. The single water-carrying coil ensures good flow and venting. The hydraulic components are made of glass-fiber-reinforced polyamide.
Easy maintenance
The Proline III is easy to maintain. All essential components are easily accessible from the front. The stainless steel heat exchanger can be cleaned quickly and easily from the front. A key advantage is that during periodic maintenance, only one burner gasket needs to be replaced instead of two.
According to the manufacturer, the ProLine III offers a good solution for renovation projects in high-rise buildings. Thanks in part to its high allowable pressure drop (Pmax), the unit can effectively handle long individual flue gas exhausts and small diameters. The integrated flue gas check valve provides optimal safety in projects with collective flue gas exhaust systems.
European regulations
The ProLine III is also compliant with European requirements that will take effect in 2027. The European Drinking Water Directive (DWD) imposes stricter requirements on materials that come into contact with drinking water, including hydraulic components in central heating appliances. The unit also complies with the stricter RoHS requirements that will take effect on July 1, 2027, which limit the use of hazardous substances in electrical and electronic equipment. The unit is also designed for hybrid heating and is H₂-ready: it can accommodate a hydrogen blend of up to 20 percent.
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