How hard is it, I believe the type that is in there now is discontinued, not to mention company is no longer around. If I get a replacement how hard is it to change. Should everything be the same for wiring, power, and ducting? Or is this something I should have a professional do.

Ive put several in boats. Most use flexible ducts and wire in the same basic way. Most likely have to use the control they give you with it rather than just hook yours to the new one but all in all not very difficult at all.

Its easy to do, even if things change, I designed my own system myself works great!

is it a self contained unit ? if so not a big deal, need to know direction main duct comes out, will have to change thermostat I'm a mermaid dealer and can set you up...Rob 540-786-8111

^^^ This is the only thing I for see you having to change. Just order a new one with as close to original size as you can

Tried sending you a pm but your inbox is full.

call him lol