Hi. Thank you for your contribution , especially from someone with actual experience. We find it difficult to pry the construction details from those who manufacture heater
matrix boxes. This is in stark contrast to those who produce water to air heat exchangers for non marine
applications. Thermatrom and Lytron, for example, provide full details whereas so called marine
matrix boxes provide only basic ...non construction, information. Tube type, thickness, pressure test, true measured performance results...it’s the old, just trust us. Or better, hire us to design your whole system !
If anyone has endured his tortured path before, an old manatee would deeply appreciate your acquired experience.
Kindest always. Mark the manatee