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Old 02-12-2018, 05:45 PM   #1
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Champion Dual Fuel Inverter Q.C. to RV On Board Propane

In a previous thread, forum member 'clutchD' posted photos and experience from adapting his Champion Dual Fuel Inverter to run off his RV's onboard propane Quick Connect (the port typically used for a BBQ grill). That thread is here: ClutchD's Champion Dual Fuel Propane Q.C. Solution.

I communicated with 'clutchD' and assembled the photos and parts list into a single reference sheet. Perhaps this will help someone.

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Old 02-13-2018, 05:10 PM   #2
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Followup

My initial concern was that the RV Quick Connect system flows thru a 1/4 inch Quick Connect adapter. The Champion fuel feed passes thru a reducer just as it enters the Safety Valve (1/4" to 1/8"). Forum member "clutchD" and others have been reporting good success with the Champion Dual Fuel Inverters for quite some time so this stuff is probably moot but just for grins, I continued my research working to ensure that the trailer's On Board Propane port would provide sufficient flow. I contacted Champion, Forest River, a Propane Equipment Supplier and a few others I've forgotten now. The only thing left to do if one wants to be even more accurate would be to buy/borrow a Propane Pressure test guage. Those gauges cost about $100 and come with a male quick connect that would plug right into the QC port. In the mean time, this may be helpful to go along with the diagram:

Champion Inverter Gas Supply required: “You need 1/2 PSI with a flow rate of at least 76,000 BTU/hour”

From Propane Gas Expert: “Most Propane equipment runs at 1/2 PSI and equals approximately 14 WC with maximum flow of 200 BTU/hour”

Typical RV Propane QC Port Delivers: .39 psi equals approximately 10” to 11” Water Column and provides 160,000 BTU/hour

F.R. Suburban RV furnace Install Guide: “Gas supply pressure for purposes of input adjustment: Minimum – 11” WC / Maximum 13” WC
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Old 02-14-2018, 01:03 PM   #3
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That's good info. However, if the generator requires 76,000 btu/h, but the port only provides 160 btu/h, how does the generator even run? But according to Clutch's thread, it does.

Using the above value and given the energy of a gallon of propane, that generator uses about a gallon and hour of propane. According to the champion site that generator should run 14.5 hours on 5 gallons of propane, which is about 1/3rd gal/hr, or about 31,500 btu/h. Looks like the run time was figured on all idle time, and the required flow rate was calculated on full load.
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Old 02-14-2018, 02:27 PM   #4
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Originally Posted by Bama Rambler View Post
That's good info. However, if the generator requires 76,000 btu/h, but the port only provides 160 btu/h, how does the generator even run? But according to Clutch's thread, it does.

Using the above value and given the energy of a gallon of propane, that generator uses about a gallon and hour of propane. According to the champion site that generator should run 14.5 hours on 5 gallons of propane, which is about 1/3rd gal/hr, or about 31,500 btu/h. Looks like the run time was figured on all idle time, and the required flow rate was calculated on full load.
Might that be 160k but per hour. Forgot the K.
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Old 02-14-2018, 02:39 PM   #5
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Might that be 160k but per hour. Forgot the K.
160K or 160,000 is Correct. My typo.

Wish the .moderator could let me go back and fix it. There are several users I have been in contact with that are running fine using the onboard propane.
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Old 02-14-2018, 03:06 PM   #6
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I think this is a great setup but consider that running the gen/inverter for long periods of time will deplete your onboard Propane much quicker.

I prefer to just carry a couple of 20# tanks in the pickup for the gen/inverter. Easier to deal with when I need to get more propane than removing the 30# tanks from the trailer. Also less risk of running out of propane when you really need the furnace.

I guess it's just a matter of choice, use the smaller tanks and save the mounted tanks for furnace, stove, etc or deal with moving the heavier tanks when they need filling.
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Old 02-14-2018, 03:19 PM   #7
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160K or 160,000 is Correct. My typo.

Wish the .moderator could let me go back and fix it. There are several users I have been in contact with that are running fine using the onboard propane.
Well... that makes a lot more sense! I should have caught that to begin with.

Started to run the calc to see what 11" WC through a 1/4" orifice would flow, but my program wouldn't run, and I got busy and forgot about it.
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Old 02-14-2018, 04:47 PM   #8
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Originally Posted by TitanMike View Post
I think this is a great setup but consider that running the gen/inverter for long periods of time will deplete your onboard Propane much quicker.

I prefer to just carry a couple of 20# tanks in the pickup for the gen/inverter. Easier to deal with when I need to get more propane than removing the 30# tanks from the trailer. Also less risk of running out of propane when you really need the furnace.

I guess it's just a matter of choice, use the smaller tanks and save the mounted tanks for furnace, stove, etc or deal with moving the heavier tanks when they need filling.
Mike, I somewhat in agreement with you here. I can't see using the onboard QC for a long period (especially in the winter). I like to use the Q.C. just for a short period, say a battery recharge cycle or perhaps a shot of A/C in the afternoon before the weather cools down. If I were pulling a Travel Trailer, I could see running it in the truck bed while taking a break at a roadside highway stop.
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Old 02-14-2018, 06:08 PM   #9
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The generator runs with zero problems on the quick connect at low idle and high idle. Works at low loads and high Max watt loads, no problem. Runs at macs load with furnace and hot water tank running and a grill off the quick connect (I installed a "t" and have 2 connections, no problems.

It works great, one of the best mods I did.

Now, I bought the generator to run the AC in the summer. I don't use it in the cold much other than to recharge batteries. I dry camp with the occasional electric only site. I have 1200 hrs with propane and a few hundred on gasoline. I don't run it around the clock like some do, I keep it on when I need it, off when I don't.

Any questions pm me or somehow get me to pay attention to a post.

I keep my generator in my truck bed so I use an extension for from the trailer to the truck.
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Old 02-19-2018, 12:25 AM   #10
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By the way, if you don't care about retaining the tank option then just ignore the left half of the graphic and don't assemble the pieces for tank. All you will need is the 2 parts on the upper right and a premade extension hose if you want to be running further away from the trailer.
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Old 01-03-2019, 09:08 PM   #11
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Thank-you for the post, looking in purchasing the dual fuel champion inverter and I was wondering if anyone has tried to connect it to the quick connect on a TT. Looking at the photo I'm trying to figure out what exactly is needed as the picture isn't really clear. I will be sourcing the stuff from Amazon.

Thanks
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Old 01-04-2019, 12:32 PM   #12
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Several have done what your attempting. Here's a pretty detailed thread about it from someone who is doing it.

Click Here for Link to ClutchD Thread

Also as relates to the picture in my post above, there are two boxes with parts at the top of the picture. Parts on the left box are needed if you want to retain the option of not only connecting to your trailer but also connect to a tank. Those parts are installed in the setup just below that box (closeup of the regulator modded and closeup showing what it looks like connected to the tank.

If you just want to convert to trailer connect only, then you just need those parts in the right box (and the closeup's just below on the right side of pic). You will be adapting the Champion supplied regulator so that it can plug right into your trailer. There are 2 pieces, the quick connect plug that fits your standard trailer quick connect and a reducer that adapts the female hole on the regulator so it can accept the QC plug.
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Old 01-04-2019, 12:59 PM   #13
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Several have done what your attempting. Here's a pretty detailed thread about it from someone who is doing it.

Click Here for Link to ClutchD Thread

Also as relates to the picture in my post above, there are two boxes with parts at the top of the picture. Parts on the left box are needed if you want to retain the option of not only connecting to your trailer but also connect to a tank. Those parts are installed in the setup just below that box (closeup of the regulator modded and closeup showing what it looks like connected to the tank.

If you just want to convert to trailer connect only, then you just need those parts in the right box (and the closeup's just below on the right side of pic). You will be adapting the Champion supplied regulator so that it can plug right into your trailer. There are 2 pieces, the quick connect plug that fits your standard trailer quick connect and a reducer that adapts the female hole on the regulator so it can accept the QC plug.

Thank you so much, if I want to add an extension hose between the Safety Value inlet and the Regulator, do you know what fittings I need to make it work. Looking in purchasing this hose https://www.amazon.com/SHINESTAR-Pro.../dp/B07F1QN9TH. Thanks
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