Generator sizing issues?

pnichols wrote:

Gdetrailer wrote:
Acutally 69DB is LESS than any builtin RV gen like Onans and a heck of a lot less cost..

Hmmm ... I wonder where this came from?

Click around on this website until to get to a common RV Onan generator's specs like their RV QG 4000 model: https://www.cummins.com/generators/rv-qg-4000

Here's a clip out of the .pdf specification for their 4000 watt model from the above website:

"Sound: 68 dB(A) readings at 10 ft (3 m) half load

* Meets National Park Service sound level requirements
(60 dB(A) @ 50 ft) for use in national parks.

* Typical installation will further reduce sound level."

The last sentence is important. Since the noise spec is for the "naked" Onan generator sitting there in only it's included case ... when it's well mounted and additionally enclosed inside an RV's outside cabinet (but open at the bottom for air flow) the actual noise heard by others outside the RV in most camping situations should be very bearable when within generator hours.

Our built-in 4000 watt Onan's sound seems nicely muffled (well below 60 dB(A)) from 50 ft away outside the RV - just a steady 3600 RPM low hum regardless of the load it's delivering. Winnebago sound-isolated it's noise output such that when inside the coach - with respect to the camping independence it's providing - we can easily tolerate it's humming. We have even run it nearly all night for A/C while we were drycamp sleeping in hot and humid conditions.

Obviously, YOU have NEVER had to SLEEP beside a motorhome RUNNING an Onan..

I CAN easily HEAR a Onan running in a busy Walmart parking lot well over 100 car spaces away (1000 ft at 10ft spaces) INSIDE MY RV.

I would rather listen to a Refrigeration ("reefer") truck parked next to me..

YOU might "think" your "built in" is quiet, but your neighbors may not have the same opinion.