Pulsar Products GD400BN, 4000W Portable super-quiet Dual Fuel & Parallel Capability, RV-Ready, CARB Compliant

*Update 1/17/24* Still working great, still running it only on propane. We have been having single digit temperature weather and I have been able to get the generator started relatively easy to run the block heater on my truck. Truck is parked far enough from an outlet that it's easier to turn on the generator to get power by the truck that way. When power went out it was also great to have the electronic safe power that this provided. Starlink internet kept the home entertained, the generator ran other electronics, and propane kept us heated. Overall, still very happy with the generator.Have not run the generator on gas, only have ran mine on propane. Generator ships with all you need to get started, except the fuel source. Oil funnel is also used to drain the oil. Makes it very mess free for oil changes. Which I recommend changing after the first hour, since there's all kind of glitter in the first oil change. I then ran it another couple hours and changed again. Much cleaner this time. Holds 15 ounces of oil so a standard quart of oil can do two oil changes. In total I changed the oil three times during the break in before switching in full synthetic oil.It runs very quiet and stays pretty quiet under load. Quieter than a smaller 700 watt inverter generator I have and while not as fuel efficient it is still very economical with how much propane it uses. Revs up to produce power and has run my 10,000 btu window ac without issue. Ran a 5,000 btu and small .7 cubic foot microwave at the same time off of it. I love the size of this unit for the amount of power it produces. You can parallel two of them if you need more power. Really the only downsides I have would be no electric start, and the outlet selection is sparse. Got mine with coupon off of Amazon and have no regrets so far. Will update if anything negative happens

Full disclosure- i've only owned this 4000W Duel Fuel generator for 3 weeks, but I've already had some good use from it and I've been very impressed thus far! I bought this to power my truck camper, and specifically my A/C on the truck camper when it's very hot. I had been carrying a 2000W Firman gas-only generator prior, and while I can run the A/C on the camper from that, it is nearly maxxed out when I do so I don't think I could run it for long if necessary, and there is the issue of carrying gas. The storage compartment of my camper requires laying the generator almost on its side to get it in/out of the compartment, and I've had gasoline leak into the compartment prior when doing so. No Bueno!!So I bought this generator, which is virtually the same size and weight as my Firman (which otherwise I've been very impressed with as well, btw) but allows me to operate from the on-board propane tanks located in my truck camper. It's clean and convenient to do so, and this generator runs pretty quietly given it can put out 3,200W continuously and 4,000 surge watts if necessary! It also produces a clean sine wave signal, so I don't have to worry about frying my cellphone, laptops, etc while charging. It is a few decibels louder than a Honda 2000i or 2200i, but close to 2 x's the output for a few decibels more. And at lighter loads on eco mode it is still very quiet (which is where it will operate most of the time I'm using it; less than 50% load.)I bought it and broke it in and tucked it away in the camper to take to the Sierra for one last skiing weekend, and lo and behold, it saved my butt when my diesel fuel gelled and I had to run the Pulsar for 3 hours to power my truck's block heater to get it started! My Firman could have handled the 700-800W draw as well, but again, nice to pull it out, hook it to the propane extension and fire it up. On that note, with propane I do need to give it a pull or two on choke before it starts on propane, but it runs perfectly once I do so.I'm at the 5 hour mark so I'll change the oil again tomorrow which should be the last maintenance I need for awhile. I really can't believe I found a propane generator with twice the capacity as my Firman 2k/1,600W gas generator for $500 (caught a sale on Amazon.) If my experience changes over time I'll update, but so far I'm very satisfied with this Pulsar Dual Fuel generator!

I've had this genny a year now. I'm here to tell you, this is an unequivocal piece of garbage. I was attracted to the dual fuel and supposed wattage capacity. A genny of this capacity should easily run a 15k BTU RV camper with a soft start installed...but it doesn't. Well, not consistently. If it's cool outside, the genny does fine, but you don't need the AC when it's cool. This genny is Loud. Much louder than Honda counterpart. This genny is near impossible to restart when it's hot. This must be a known issue, there are special instructions on how to start the Gen on propane when it's hot, doesn't help at all when you're on gasoline. Once you get it restarted when it's hot, this genny will idle erratically even without a load connected. A generator that cannot provide consistent, flat, power is useless.

This unit was perfect size for what we needed works great but is a bit tricky to start on propane .We don't put gas in it as we keep it in back seat when traveling.On propane you have to be patient when starting start with choke make several pulls if it kicks switch to start should start up and run .Sometimes it doesn't kick when pulling with choke on if it doesn't after several pulls go to start pull few times may start if not back to choke few pulls should kick then back to start should start .The manual recommends starting on gas and switching to propane once running but not a option for us .Other than that purrs like a kitten soon will change the break in oil we have about 20 hrs on it

My use case is a travel trailer hooked up to a Bluetti AC300 Solar Battery system. I don't have a large enough solar array (yet) on the RV to charge the batteries to full but enough solar to cover our normal usage inside (not counting things like A/C). So my intent for the generator is to charge the batteries in a few hours a day so we can make it through the night with some medical machines inside when there isn't shore power. The generator isn't too loud, but it is louder under load than we expected it to be.As for our use case, this claims 4000W peak, 3200 Continuous on Gas and 3600W peak / 2800 W on propane. I have only used it on Propane.We just took this setup out for our first trip. The AC300 lets me change what my "Grid" power is rated at (15A, 20A, 25A or 30A). Here is how this worked out:At 30A setting on the AC300 (connected to the 30A on the generator) the AC300 tries to pull 3000W. The Generator quits, never gets to the full power. In fact, the Generator quits right around 2200-2400W, cuts the power, and resets itself.At 25A setting on the AC300, it tries to pull 2500-2800 Watts. Theoretically, this generator can do that. It doesn't, still resets and cuts power.At 20A setting, the AC300 will pull around 2200-2400W. This works for about 5 minutes, then again the generator cuts power.At 15A, it pulls around 1800W. This is stable, while plugged into the 30A port. This will charge my batteries in a couple hours, but not if I'm running A/C.All in all, it does work, runs on propane (all I've tested), is not too expensive for a Dual Fuel, and I will likely purchase a second to run in Parallel which is a nice feature and I think would solve my issues. My electrical knowledge is limited, I'm not sure why I can't get the rated wattage, but it's getting us through our "boondocking" trip for now.Since I will need two of them though, at $500+ each, there is probably $1000 generators that would have been a better purchase for my use case.