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Author Topic: new type 'silent diesel generator" for bus use?  (Read 3268 times)
bevans6
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« on: June 29, 2009, 02:27:38 PM »

Has anyone looked at these new generators?  typically enclosed diesel, look like they would fit in a bay, 3600 rpm, claim to be silent.  Are they a bus option?

For that matter, if you were looking for 4000 - 4500 watts at 120 volt, what would you buy now, with all of your experience?  I have a nearly new Yamaha 6600 watt contractor gennie in the bay that came with the bus, and it's loud, harsh, and obnoxious.  It only puts out 30 amps at 120 on a single outlet anyway.  I want to get it out and put something I will love in.  What's your pick?
Brian
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cody
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« Reply #1 on: June 29, 2009, 02:35:54 PM »

My pick was a honda 3000watt inverter generator, not a lot of power but enough for my needs, main thing is that it just sips gas, I can go almost 24 hours on a little over 3 gallons and it's whisper quiet, only 49 DB at idle and only slightly over 50 DB at operating speed with a top of 58 DB wide open.  I had one guy ask me how loud it was when he was standing right outside the bay that held it, it was running at the time.  At some point i'll pick up another and use the coupler cord to tie them together for 6000 watts.
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MCI-RICK
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« Reply #2 on: June 29, 2009, 02:39:02 PM »

Cody,

What's the model number of your generator?  What have you been able to run with it? 

Rick
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cody
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« Reply #3 on: June 29, 2009, 02:54:31 PM »

Mine is the EU3000is, I run my house type refrigerator, the microwave, one roof a/c unit, all my outlets for lamps, tv , washer and dryer etc, a person has to manage the power a lot, turn the a/c off if your going to fire up the microwave but for the most part we run what we want as we need it, the tv and computer seem to be on all the time, stuff like that, our roof airs are 15K carrier heat pumps, I've never tryed it on the heat pump setting but it will fire up and run one roof air.
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MCI-RICK
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« Reply #4 on: June 29, 2009, 03:12:11 PM »

Brian,

Sorry, I wasn't trying to high jack your thread. Smiley  Do you have a link for the new 3600 diesel gen?  I'd like to take a look.

Cody,

Sounds like a gas gen.  Where did you set up the fuel tank for it?  or do you just fill the tank it came with and go?

Rick
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cody
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« Reply #5 on: June 29, 2009, 03:48:11 PM »

It is a gas generator, it comes with a 3.8 gallon tank built in, what I like is the economy of it and the quiet.   http://www.hondapowerequipment.com/products/modeldetail.aspx?page=modeldetail&section=P2GG&modelname=EU3000IS&modelid=EU3000ISAN
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WEC4104
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« Reply #6 on: June 29, 2009, 06:04:46 PM »

The concept of having two Honda 3000s with the interconnect cable is an intriguing concept.  5600 watts continuous, and 6000 peak would suit a lot of folks needs.  I've always been a strong believer in redundant systems, so being able to limp on one if the other fails is really nice. 

My generator sees quite a bit of run time at less than half load.  Being able to "kill" one unit and conserve fuel.   If I connected the 4104's old air conditioner gas tank to the Hondas, and only ran one unit, I figure I'd be good for about 6 days of continuous run time.  Of course, I'd never run 24/7, so I'd really see a couple weeks of bus use between fill ups.

I'll admit, not having the remote start, and having to deal with the fuel feed and exhaust changes would probably keep be from truely considering the Honda 3000 duo, but it does present some nice advantages.
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John316
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« Reply #7 on: June 29, 2009, 06:11:36 PM »

WEC, Interesting concept of killing one generator and running only one to conserve fuel. I don't really know, but I saw in our research of generators, that if it isn't running load, then it uses next to now fuel (at least that is with a diesel kubota). I don't know if the same is true with gas gensets or not.

We don't run our genset any longer than necessary. The inverters kick on the genny, and it runs until the batteries are full, and then the generator shuts off. The only other time we run the gen is when we have the roof airs on. 

For redundancy we will have a tap into the bus engines alternator. That way when we are driving it will keep the batteries charged, keeping generator usage minimal.

God bless,

John
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gumpy
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« Reply #8 on: June 29, 2009, 06:15:51 PM »

I had a Coleman contractors unit that I packed for several years. It sucked. Last year I stumbled on a used/nearly new Onan 7.5 Quietdiesel and installed it.  So far it's been great, and I just got the autostart connected to my inverter, so after this summer's trip I'm hoping I will love it even more!

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Craig Shepard
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« Reply #9 on: June 29, 2009, 06:31:26 PM »

Wec4104,

I did a little research on this today.  They do make a wireless remote control system for that gen.  There's a good description with a price on ebay.  Here's the info - Item number: 390058874232.  

There's are several parallel power kits listed for that gen too.

I think you can get two new gens, the parallel power kit and the wireless remote set up for about $3500.

Rick
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MCI-RICK
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« Reply #10 on: June 29, 2009, 06:35:46 PM »

Gumpy,

Your gen run everything ok?  or do you have to do some power management?

Rick 
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WEC4104
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« Reply #11 on: June 29, 2009, 07:13:36 PM »

Wec4104,

I did a little research on this today.  They do make a wireless remote control system for that gen.  There's a good description with a price on ebay.  Here's the info - Item number: 390058874232.  

There's are several parallel power kits listed for that gen too.

I think you can get two new gens, the parallel power kit and the wireless remote set up for about $3500.

Rick

Interesting, Rick.   There is no mention of anything like that on Honda's website, even where they list the available options for the EU3000iSA.    Apparently, the remote start package is something that was put together and offered by a third party.   Also interesting that they opted to use a handheld wireless key fob to control it, rather than a hardwired panel.
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cody
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« Reply #12 on: June 29, 2009, 07:18:32 PM »

I have the wireless remote for mine, I got it at RV Surplus for 125 and it's like a remote start for a car, a keyfob.
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MCI-RICK
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« Reply #13 on: June 29, 2009, 07:32:20 PM »

Cody,

I saw the keyfob set up on ebay but for twice the price.  You got a great deal on it! 

Do you fill up the existing tank and go or do you have some other setup?

Rick 
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cody
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« Reply #14 on: June 29, 2009, 07:36:15 PM »

I use the existing tank, at some point I may add a bigger tank but for now i'll use this one, it's been a good generator for a couple of years now.
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« Reply #15 on: June 30, 2009, 04:47:31 AM »

I had the same set-up as Cody in my 04 and it worked well. Mine was a Yamaha 3000 with the boost feature. picture here

http://i734.photobucket.com/albums/ww347/Michigander_Bob/My%20First%20Conversion/9-Generator.jpg

The Yamaha will start a bigger load than the honda and the wheels are included but otherwise identical. If you have propane you can convert it to dual fuel (gas/propane) If I had to do it all over again I would have got a Honda 6010 gas unit.
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gumpy
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« Reply #16 on: June 30, 2009, 05:02:15 AM »

Gumpy,

Your gen run everything ok?  or do you have to do some power management?

Rick 

So far, I have not had a problem running everything I need to run. It will run my basement air just fine and charge the batteries as well. That's really the only
things I need it for. The stove / oven is gas and I don't run my water heater element on the generator electric.

I figured I could get by with a 4 Kw generator. I had found a 3 Kw at Powertech, but had not found a 4 Kw anywhere. Then I stumbled on this unit. It came from a wrecked high end sticks and staples that had less than 4000 miles on it. I doubt it had 20 hours on it. I got it for a deep discount.

The only thing I don't like about the ONAN is trying to get parts for it. You can't order them directly, and the only place close to me that is a dealer is Camping World, and they have a huge markup on drop shipped parts.

craig
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Craig Shepard
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« Reply #17 on: June 30, 2009, 05:50:03 AM »

Here is a quiet diesel 8k in michigan on craigs list for 2500  http://flint.craigslist.org/rvs/1229462946.html
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« Reply #18 on: June 30, 2009, 06:22:08 AM »

Brian,

I would avoid any of these so called quiet diesel's that are running at 3600 rpm.

You would be money ahead to buy a name brand, water cooled diesel, that runs at 1800 rpm, and that also provides support and parts into the future.

No offense meant, but this is one of those "Buy cheap, Buy twice" situations.

I have had both gas and diesel, and I am glad (overjoyed) to be rid of having to carry the second fuel.

Best of luck on your search,

Cliff
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« Reply #19 on: June 30, 2009, 06:35:16 AM »

Guys, lot of good diesel genearators out there in 4 to 7 kw range, when rental stores replace their light stand those can be bought at a good price I bought 5 a few years back and paid very little for the 5 from RSC and they have a low db rating also.          good luck
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bigjohnkub
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« Reply #20 on: June 30, 2009, 06:48:56 AM »

I use two Honda 3000isu generators. They are hooked together with a parallel kit . it gives me enough
power to run everything at same time Except hot water heater. I have to turn off one  A/c unit to use hot water heater.  Hooked together, they will only give 5500 watts at 120 volt, which is about 29.amps.
They will run 12 hr on 5 gallons of fuel. I really like them.
  That being stated, I am purchasing a 6000isu. About same fuel consumption, but has remote start capabilities, and a smaller footprint than 2 3000.
  I had thought about separate zones , but could not puzzle it out to meet my needs.
  These generators put out a "pure sine wave" which is important to computer folks, but I don't use computers on vacation.
  If you have any concerns about their operation, PM me . I have used this set up two years.

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cody
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« Reply #21 on: June 30, 2009, 06:49:53 AM »

I'm using my honda because thats what I have, I'm slowly working my way into a different setup tho. I bought a 2800 watt pure sine wave inverter and I'm looking at several solar options, I'm also running 4 AGM batteries, I'd like 8 but that all takes time, the best generator for my application would be about a 8K diesel, the 1800RPM in a quiet box so I could back away from such strict power management practices and relax and run all my electrical crap at will lol.  My honda works great but it was a stopgap measure at the beginning to buy time to see what I really needed and wanted.  As I bring the rest of the conversion around and expand on what I want, I'll review my needs and make a better determination of what I'll eventually end up with.
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bevans6
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« Reply #22 on: June 30, 2009, 12:34:45 PM »

I called a large dealer of these types of silent diesel generators.  He said that even though they are enclosed they need to be in open air to cool.  So doesn't recommend a bus bay.  He likes watercooled for that.  He does say that a single cylinder is smoother at 3600 rpm than at low rpm, which makes some sense, but I have crossed these off my list.

Brian
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gumpy
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« Reply #23 on: June 30, 2009, 08:25:42 PM »

Here is a quiet diesel 8k in michigan on craigs list for 2500  http://http://flint.craigslist.org/rvs/1229462946.html


That could be one heck of a buy for someone!
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Craig Shepard
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TomC
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« Reply #24 on: July 01, 2009, 06:21:39 AM »

Just a bit about the "Quiet" Diesel's from Onan.  I've experienced several installations on sticks and staples-they typically install them behind the front bumper (or what they call a bumper) without another enclosure around them.  If the Quiet Diesel is parked across from us, and my genset is on (10kw Powertech Diesel in a compartment I made), you won't be able to hear my genset until you're within 10ft of my bus-compared to the noise the Quiet Diesel makes.
Powertech makes a nifty 8kw Diesel that uses a 3 cylinder Kubota that is layed over on its' side for lower clearance.  I had a friend that had this unit on his big rig and it had over 23,000 hrs on it when he sold the bus (with one gen overhaul, but not the engine [that's like over 900,000 miles]).  The unit has it's own sound cover on the engine and a squirrel cage blower to suck the air through the radiator and blow the hot air down to the ground.
I use a 10kw since I have 3 roof airs, 2-elec water heaters, electric heat in my bathroom-the only propane I have is my stove and furnace.
I realize that the gen is the next most expensive piece of equipment from the purchase price of the bus.  Please get a quality unit that you know will be able to get factory backing when the unit goes south.  I am using a Wrico International 13kw (same basic size as the 10kw) for my next conversion and will be making my own enclosure.  My goal is to have as near to a silent running genset as possible (think studio gensets). 
Remember-there is no such thing as a too quiet genset.  Good Luck, TomC
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« Reply #25 on: July 01, 2009, 04:28:18 PM »

I would really have a problem trading my Honda EV 6010 propane powered gen for something else. I have an 80 gallon propane tank mounted in the front bay on the street side behind the gen. The only downfall is I can't throw a 20 lb tank in the truck, run downtown and refill it but at 80 gallons........ they'll come fill me if need be. I can run both airs off of it at the same time but as with even a 50 amp shoreline I can't run the ac's, water heater and microwave all at the same time. Power management even when plugged in. I have the remote start (not wireless). It's pretty quiet and from inside the bus it's quiter than the ac units for sure. I really like the propane to run the engine as it eliminates dual fuels (you're already carrying propane) and you don't have to contend with what gas does to the carbs over the winter. I just hit the start and it fires up. After all my years of dealing with motorcycles I've found that it's pretty hard to beat the reliability of anything with the word Honda on it and liquid cooled. Sorry Harley fans.  Later
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