hi les,
1. my muffler has a dent in the bottom too. i will not replace it because of the dent.
2. my prosine3000 inverter/charger has a fairly strong cooling fan on it but i can only hear it if the bay doors are open.
3. that was a steal for synthetic oil.
4. your central vacuum should work on either genny or shore power
please share pictures with us on your tv install.
later
tom
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