Those of you with portable generators..... I plan on building a little "generator house" that will be open for intake and exhaust to keep it out if the weather and to quiet it down a bit as well as chaining it down to the concrete pad. I currently have a 15' 30 amp power cord that came with the genny..... Any of you purchase a longer cord, maybe 30 to 50 ft worth of cord? I want to get this thing down on the property a bit. Any power loss with longer extension cord? Any other tips will be helpful, thx alot!