You need to do your own research to see if this will fit your needs. I believe that it will fit ours as I have researched the pro's and cons of the various fuel systems.
1. We will rarely use a generator.
2. We have had problems in the past with a gummed up carb on a gas Onan (lousy Onans).
3. We are willing and able to carry extra LP with us.
4. Converting one ourselves will save us a hefty chunk of change.
So with that in mind, here is my response, for what it's worth...
The way I understand it, by going with a no drill conversion kit, the running watts output will stay the same. I'm not sure how but I was exchanging PMs with a guy who had converted a total of 4 gas generators to tri-fuel. He loves the set up. Measured output on all and claims to have not lost any power with the conversion. Also claims to have gotten better mileage out of a 20 lb tank than what the naysayers claim you get. From all the info of folks who have done this, you can change oil less frequently. Unlike RV generators, contractor gennys do not have oil filters, they just use a magnet in the oil.
So following his example... I need Kit C ($187)
, a Gas generator with electric start (on sale $600)
and misc bolts and gas lines. NOT INCLUDING THE IRON PIPE FOR GAS. We have to run the iron pipe back there anyway. We figure on carrying up to 5 or 6 20lb LP tanks under the bus. The generator will also need a small (better) muffler added for our sanity. I have read that gold wing motor cycle mufflers (motorcycle muffler for a 4 stroke 100 to 200cc bike) will work nicely on a contractor generator. Makes them very quiet. We also have to remove the gas tank and cut down the frame in order for it to mount under the bus. We will see if we can add some baffling that will absorb some of the enigine noise without restricting the air flow as this type of generator need lots of air flow around it. Most of the noise is attributed to the engine not the exhaust. I'm hoping we can install a permanent mount genuri to suck the exhaust up above the bus since we will be using the generator mostly in parking lots, truck stops, rest areas or on a wide shoulder of the road if necessary (been there, done that, wish we had been better set up for it).
The Predator generators are under the name of Century
. They sell already converted tri-fuel generators.
Just one of the many "conversations" I've had on this subject. (so many were in PMs)
I called both Central Marine Diesel and US Carburetion today and priced out 2 Yamaha 2000 with shipping, 2 low pressure hoses, and cable for RV. First I bought my Honda kit from US Carburetion and was impressed then with their support. Today, Central Marine support was not as effective on questions I asked between both vendors. There was a $174 difference between both with US Carburetion being the most expensive. However they also sell their units with the optional Tach and hour meter as standard so that is most of the difference.
I did run a test in South Texas when I had my Honda 2000. I had made a 5 gal gas tank for it. I ran a run down test using first 5 gal gas and then a BBQ propane tank with 4.7 gal of propane. I was using our Casita and keeping it cool with the A/C. I got just under 3 days with both and the propane was just under and hour less total run time than the gas. Now I could not control all the variables but I was quite pleased as all the reports say propane is not as efficient. That seems to be what I saw also but not by enough to be an issue for me.
You may want to back up and read the whole thread on potable generators. Keep in mind, this is from the Escapees forum, the place where they advocate and encourage damaging a generator
simply because it is too loud for them under the guise of "just joking". But if you read the replies, they are not joking. Fair warning! Should I EVER end up having my personal property damaged deliberately, I advocate getting their tag number (so I can post it all over the internet), taking photos of the multiple flat tires that "Karma" visited upon them for their destructive deed and posting it on the internet with a warning to others who may park near them. I also plan on having a sign that reads "WARNING! KEEP YOUR DISTANCE! LOUD NOISY CONTRACTOR GENERATOR ON BOARD & I'M NOT AFRAID TO USE IT." Going to make it into a couple of bumper stickers and put it on both bumpers. Or make big, really big... stick it in the front windshield to use as a privacy curtain.
Don't park next to us in a parking lot.
On edit: another
that shows the genny we plan on buying and how loud it is. I keeps seeing that the engine is a Honda clone. Made from the same casting forms. That means they most likely put a dirt cheap muffler on the unit which is why it's so loud.