BEST Costco GENERATOR Two Years Later 

Check out my video on hooking up The Firman Generator to Natural Gas ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GDuipkRdZBc.html

I live in SE Fla. I purchased this for $699 June 2021. I run it on reg gas. My suggestions for others that ONLY use it for Hurricane power outage backup. Like all my gas eng equipment that’s for emergency use during a season like Hurricane. After using it and preparing it for a hopefully long term outage. Drain the gas tank of gas. Run the engine to drain the carb and fuel lines. Drop the carburetor fuel bowl and empty any remaining gas and reinstall. Lastly. Pull the spark pull and add a 1/4 cup of engine oil. Slowly rotate the engine using the pull cord a few good revolutions. Install the spark plug and remove the battery power lead. Pull the start cord over slowly every quarter. Charge the battery a few times a year, but don’t trickle or otherwise leave it charging. Do these simple things and it can sit for years if stored out of the weather. I’ve got 50 years experience doing this. Starting it every few months is wasteful and a pain, but will also work. Side comment: Firman now says fuel use is 12 hrs for 8 gallons at 25% load. They did say 50% load 3 years ago. Nobody has published or shared actual gasoline usage from use under higher loads or any measured avg load. So at 60-80% average power, it’s anyone’s guess how long it runs on an 8 gal tank.

I make my Firman Tri-Fuel a little quieter by making a tent out of two 4x4 sheets of plywood. Lean them against the two sides to deflect the sound to the ground. Trying to line up the plug with the inlet at night? Take a marker, or white-out, and make a line on the plug & socket to line up the two before you twist it. Keep battery charged. Install emergency lights that come on when power goes out. Install them where you set up the generator and at the panel. Have an extra spark plug. Maintenance is easier when using natural gas to power the generator. The oil town I live near is Houston.

Thanks for doing a follow up video on this. It’s the few posters like you that make this information so valuable to the rest of us. Much respect for follow ups.

Hey thanks for the reviews on this generator. Decided to upgrade my 20 year old gen this year to a propane set up and went with this model. FYI found it on ebays firman store on sale for 499. It was refurbished by firman but came with 2year warranty. Thats delivered. Keep a eye out for the ebay sales and save some $$

Thank you. Costco is running their June coupons with $100 (US) off of these. Here in the South 48, $699. I am in on one of these. Thanks for your update!

I have the grey one that I purchased in April 2022. I just had to run my house for almost 4 hours a few days ago. It ran my central AC with no problem, on both propane and gasoline. Good job on the 50amp upgrade. That is what I went with from the beginning. It runs great.

I bought this 2 years ago. We lose power often. I haveitrunning on NG. Starts well and has been a life saver. Very good generator. I recommend.

The manual will have a long-term storage process. If you do not need it for months on end, consider placing it into long term storage mode. That is similar to the way it was stored prior to you buying it. I do this for my 1998 Generac XL5500. Last summer when I ran a test, I checked the oil, added Stabilized gas, and it started on the first pull. Ran it under load, then placed it back into long term storage mode. As for your Generator interlock at the Pannel. I might not always be home when power is needed. So, I wrote a protocol to follow, placed it next to the breaker box and taught my family to follow the protocol. That way, during an emergency, it is not a guess as to whether I started things up correctly, I just follow the steps in the protocol.

Just bought mine from Costco for 990 canadian$ can't wait to put this baby on test .always own 1

Thank you very much for sharing your knowledge. Living in Houston and I am thinking of buying this generator

Adding a safety to your fuse box is smart. Simple slide safety, to switch on the fuse to the generator you have to turn off the main and it blocks the main from being closed. Tag out so you can’t backfeed the power lines coming into your home.

Great video! Incredibly efficient with answering all the questions. Thanks for putting this together. Earned yourself a new subscriber.

Send off for sand bags and make a sandbag 'dog house' for your generator. If needed you could always move the doghouse to a different location.

About 4 weeks ago I bought the new Gray model for 699 at Costco, and am very pleased with it so far

I keep my Firman under a canopy. I have to say the automatic CO sensor works like it should. Saves lives. The cover has four corner “stretchable” keeping the cove from flying off on windy days ( “da best thing” Propane burns super clean ,but burns more fuel…good for those who use it just a few times a year or less.

I just got mine today for $699 in Texas! Super excited!

I have one and never ran it on gasoline yet. I only run mine off natural gas and i love it

I have a 4 ton Trane variable speed hvac that the Firman powers with no problem since the start-up isnt for the full 4 tons. Just be smart and dont try to cool down an 80 degree home by setting your thermostat at 70 degrees. Cool it down in 2 degree increments. The main reason I boight this Firman was it was able to run my hvac, also because I can quick connect it into my NG source. Closest thing to a whole home genearator for a lot less money.

Good vid. I’m subscribed. Like the info and presentation.

Power from the grid is less than 5% distortion, don’t know what level will cause damage to appliances but there’s a chance it will. An inverter generator might be another possibility.

You nailed all the relevant questions! Subbed!

I have the champion duel fuel 7000 w I bought at Costco back in 2016 I think I paid around 400 in Ca. I live in Baja California I have been through 3 hurricanes had to use it for days does the job but it is super loud I need to upgrade I seen Honda has a fuel injected super expensive 7000w

Watched multiple videos on this generator and so far this is my favorite

Thanks for the video. I've owned this generator for a couple of years now and am very happy with it. I run it on propane but I am considering using it with natural gas. How much should I expect to spend on getting a natural gas line tapped into my main gas line?

Great video! you explain everything very well! 10/10 I'm going to pick one up once it gets on sale !

Wow just found your channel I’m glad I did Good information

We have gone through 5 of these in 2 years trying to use it in RV living…😢 not ok for 14 hours!

Great review Tim.

This is a great product for a power outage!

I have just bought the same one.

Can you use propane to run it , as opposed to natural gas?

Thank you for this info. Great stuff

Runs well on propane during an outage.

What model # are u explaining

Just picked it up today from Costco In Missouri for 699.00

Thanks for the details only approach, watched too many others with lots of filler, few answers!

great review man

What about running laptops and electronics? Firman has an inverter generator for this. How well does this one do with electronics maybe through a battery?

Thanks for the video it is extremely informative. I am upgrading my 5000 watt Craftsman generator converted for Propane to the Firman 7500. Did you remove the flared 3/8” fitting on the unit to install the bigger one for the longer hose or just use adapters to step it up. I use a 20 foot 3/4 hose similar to the one you use for natural gas to connect to my inground propane tank. My other question is how do you prime the long hose. My conversion kit has a prime button on the back but the Firman does not. Thanks so much for your help. Jeff

Natural gas line - I bought a 3/4” ID - do I need to use the 1/2” ID sold by firman?

I tried to find your gas hookup video but no luck. I have the same generator with a plan to hook it into my whole house, stand alone propane tank. Guys that hooked up the tank said that the generator requires a high pressure gas feed line and that's not the same as what they install for the houses' cook top and water heater. Have you heard this from Firman or experienced it anything like this?

snatched 2 up last week for $699 each.

Thx for the video! I’m enjoying the same Gen. Question - when you run it through its paces what kind of load to you put on it?

Just bought mine today (6/24/23) at Costco (Mobile, AL). Paid $700 + tax. So excited. Thank you for your video. Just out of curiosity, what do you think is the most efficient form of power, the gas, propane, or natural? I appreciate your time.

I don't know if you'll read this because it's a bit of an older video but I was wondering if you have any tips for starting the generator on NG. I find it always takes me a while of cranking and waiting around until it finally goes, and I think it may be due to the air in the 25 feet 1/2" hose. Is there any good way to purge the hose?

Where can I find that trickle charger that you have listed in the video?

Can I hook this up to my natural gas BBQ outlet and then plug into my Generlink?

So I can run on gas? I don't know how I would do a natural gas hook up..

Just picked it up today $699 USD. Yes $699 which was $200 off

Great video but I have a question about the little ground screw under the 30amp plug. I checked the manual and it says consult with an electrician. Do I need to use this ground to be able to run my furnace or other appliances? I bought the Dual Fuel model, now $1299.99 cad shipping included

I just got one at costco for $699.

Would you have links to the quick connect fittings?

Does it have a fuel shut off valve?

What is it???? No description of what it is

I'm two years into my Costco Firman dual fuel. I have a 5 ton AC and put a soft start on it. The AC starts up and runs for about 5 to 10 minutes then I hear the generator bog and it dies. At first I thought it was something else kicking on and causing it but I turned off every breaker but the AC and it still did it two more times. Not sure what is going on but it don't run the AC for very long. My AC neighbor said it was the AC not seeing stable voltage but to me its the compressor that is bogging and dyeing so not sure that is the AC causing the issue as he states. What say you?

can you parallel connect to another Firman?

It is not an inverter generator which is NOT clean power for running electronics. It is VERY LOUD!

That THD is pretty high. There’s a chance it could fry electronics.

Some crackhead won't steal it 😅😂 it's 300 pounds with a full tank of gas

is this big enough to run my house incase of power outage in CA?

I like (NOT) how they do not use BTU rating on this unit.

With all warranty and extended warranty available for next to nothing. I have 3 100x100 foot “warehouses of them with new one’s coming in daily

Mine are not refurbished

I wholesale/retail these and many others direct!! I make money selling at 579.99 12-13k watt dual fuel or just gas and I can put on trie fuel kits for cheaper than you can imagine. (big names brands) for the same price as these if not cheaper. Reach out if interested

Costco is now a slacker in this market. Home Depot now sells a 9KW TRIFUEL Inverter Genny for $1550! You can't beat that.

Terrible THD…..don’t use this crude generator for powering any electronics only power tools

I don’t understand why you keep showing the gray one in your thumbnail if you don’t have that one. I’m doing research on the gray one. Your channel is somewhat misleading.

That THD is a deal killer. TERRIBLE. Never buy anything that even comes close to exceeding 10% THD. >5 is a MUCH better option. Don't even know why this video/creator is 'recommending' this. Logistically, it may 'give' you power, but not clean and not conditional to more common electronics today. It's basically a multi-powered use generator. Clean power needs? Don't even think about this one.

What’s the output