What should be done if a heat exchanger is no longer in production and needs welding?

Consulting with a master licensee is the appropriate course of action when dealing with a heat exchanger that is no longer in production and requires welding. A master licensee has extensive expertise in the field, as well as knowledge of the specific regulations and guidelines that govern repairs and modifications to heating systems. This is crucial because they can ensure that any modifications made to the equipment meet safety standards and do not compromise the integrity of the system.

Furthermore, they may also be familiar with alternative solutions, such as sourcing compatible parts or suggesting repairs that comply with current codes, which can be particularly important when original components are no longer available. Evaluating any relevant state or local regulations might also lead to a requirement for specialized repairs, making consultation indispensable.