How much does a good generator for an RV cost?

Answer 1

A generator varies greatly based on the model of RV and generator desired. A cheap generator will run you about 175.00 while a more expensive option could go all the way up to 1959.00

What are you trying to power? That is the pertinent question. You'll need to calculate the watts required to safely run everything you want it to. The formula is simple; Volts, multiplied by Amps, equals Watts, or "V x A = W". For example: The Coleman Mach3 plus is a popular 13,500BTU roof air conditioner which draws 12.4 amps under normal conditions, 13.1amps in "high cool" mode, and 15.4 amps in desert conditions. The other popular brand is Dometic; the BriskAir II is also a 13,500BTU A/C it draws 12.4 amps for just the compressor. Add 2.7 amps more for the fan motor. The tech sheet says 15.3 amps. And the Dometic Corp. recommends a 3.5KW, or 3500Watt generator to run one unit, and a 5KW for two. PLUS all the other appliances and accessories. Personally, I wouldn't go that small. Minimum 4KW for one, and 6.5KW for two.

The next question that needs answered is: What style of generator? Portable? Built in? What type of fuel? Gasoline? Diesel? LPG? The built-ins are quieter. Does it need a spark arrest muffler? What brand? Honda? Generac? Or do you go for the best? (That would be Onan). Lots of questions, hope this provided some answers.