Forum Discussion

Samantha525's avatar
Samantha525
Explorer
May 05, 2015

Sleeping over generator

What does it feel like to sleep over a generator? We are looking at class c's and I'm concerned about generators under the bed. Do they vibrate the bed? How much? What is the noise like, is it consistent or does it change frequently? TIA for any input!!

48 Replies

  • I have a genn under my bed in a class A an old class A at that and after a few minutes I fall asleep. Think of it as white noise. I have run mine all night in a truck stop when it was hot or very cold I have a CO2 detector. No problems so far sleep like a log. Trucks around me are all running at night as well
  • Samantha525 wrote:
    Thank you, Bill, what about vibration?
    I was told by an RV dealer that most class C's carry their generator under the bed, as a selling point for the one we were looking at that did NOT have the generator under the bed. So, perhaps its not true that most have them under the bed?

    There would likely be few intances where we would need the air conditioner at night.


    Yes most Cs have the generator in the rear because that's where the most room is for it after the engine takes up the front end space. And for weight balance to offset the engine weight up front. There are some with the generator on the rear side. Often they're mounted "under" some sort of cabinetry inside of the MH. This is because they're usually too tall to fit completely under the floor.

    I can't speak as to the vibration because my MH is a DP with the gen set up front. There's no problem to sleep in the rear due to either noise or vibration. I will say that in our DP it's too noisy to sleep back there over the transmission always shifting gears, and therefore the engine always changing RPMs when driving the Alcan. We had two drivers because we were just making time to home after buying the MH.

    Bill
  • NOT having the generator under the bed was the selling feature, which got me wondering how it feels to HAVE the generator under the bed. It's starting to sound like I asked a dumb question in the sense that you really shouldn't use a generator at night.
  • I've had 4 Class Cs, none of which had the generator under the bed.
  • It all depends on the mounting of the generator, acoustic insulation used, if the pipes and wires are places so they don't carry vibrations, and if they used the Onan resonator. Badly done, it will be like a magic fingers bed. Done right, it will be noticable, but you can still sleep.

    I highly recommend having at least two CO monitors, one that shows PPM just in case, as well as considering a Gen-Turi or similar unit to disperse exhaust gases above the roof.
  • Thank you, Bill, what about vibration?
    I was told by an RV dealer that most class C's carry their generator under the bed, as a selling point for the one we were looking at that did NOT have the generator under the bed. So, perhaps its not true that most have them under the bed?

    There would likely be few intances where we would need the air conditioner at night.
  • j-d's avatar
    j-d
    Explorer II
    You'll know it's running, but I don't think the vibration will be much different at the genny vs. near the genny. That said, I don't think too many of us sleep with genny running unless it's a daytime nap while other people are dong other things. Thoughts that come to mind:

    1. Unless you add a vent kit, there's risk of carbon monoxide entering the non-moving coach.

    2. Many (most, actually) campgrounds have night time quiet hours when you are not allowed to run your genset.

    Class C we have uses the ONAN 4KY and that's what I base the above on. Previous coach didn't come with a genny and I added an old ONAN BFA. Both were 4KW and the BFA was a longer-lasting genny, but it was rough and loud in comparison. Like we had a garden tractor in our closet - trying to get out.
  • The noise consistency will depend on what it's powering. As an example, you know how microwaves power themselves on and off depending on what power setting they're set on - our generator, if absolutely nothing else is drawing power, will rev up when the microwave power cycle kicks on and then go back to an idle when the microwave power cycle kicks off. So the noise level goes up and down and the microwave power cycle kicks on and off.

    If you're running it at night, I'm assuming it will be for air conditioning? So yes, it could change its noise level as the AC kicks on and off if there's nothing else drawing power from the gen set to keep it's revolutions up producing the power.

    I wouldn't want to listen to a gen set under my bed all night and it will add some heat to the bedroom over it. The heat increase could be a little or a lot depending on the build of the generator compartment.

    Bill