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rkdus 120K Views
Jun 16, 2021 8:38 PM

Costco Members: Firman 7500W Running / 9400W Peak Tri-Fuel Generator

$700

$1,000

30% off
(in Warehouse only)at Costco Wholesale
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Deal Details
Costco Wholesale (link for information only) has for their Members: Firman 7500W Running / 9400W Peak Tri-Fuel Generator (T07571) for $699.99 valid for in-warehouse purchase only (warehouse locator).

Thanks to community member rkdus for finding this deal.

Note: Sale is valid in-warehouse only; item is available online but for $100 more ($799.99 after instant discount).

Features:
  • Runs on Gasoline, Propane Fuel or Natural Gas, for Flexibility on the Road or During Emergencies
  • 9400 Starting Watts / 7500 Running Watts - Gasoline
  • 8450 Starting Watts / 6750 Running Watts - LPG
  • 6900 Starting Watts / 5500 Running Watts - Natural Gas

Editor's Notes

Written by StrawMan86 | Staff
  • About this deal:
    • Sale valid through 7/25/21, while supplies last.
  • About this product:
    • Rated 4.5 stars out of 5 overall based on 700+ reviews on Costco
  • About this store:
    • Costco Wholesale Return Policy may be found here

Original Post

Written by rkdus
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale (link for information only) has for their Members: Firman 7500W Running / 9400W Peak Tri-Fuel Generator (T07571) for $699.99 valid for in-warehouse purchase only (warehouse locator).

Thanks to community member rkdus for finding this deal.

Note: Sale is valid in-warehouse only; item is available online but for $100 more ($799.99 after instant discount).

Features:
  • Runs on Gasoline, Propane Fuel or Natural Gas, for Flexibility on the Road or During Emergencies
  • 9400 Starting Watts / 7500 Running Watts - Gasoline
  • 8450 Starting Watts / 6750 Running Watts - LPG
  • 6900 Starting Watts / 5500 Running Watts - Natural Gas

Editor's Notes

Written by StrawMan86 | Staff
  • About this deal:
    • Sale valid through 7/25/21, while supplies last.
  • About this product:
    • Rated 4.5 stars out of 5 overall based on 700+ reviews on Costco
  • About this store:
    • Costco Wholesale Return Policy may be found here

Original Post

Written by rkdus

Community Voting

Deal Score
+87
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259 Comments

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Jun 17, 2021 12:17 AM
211 Comments
Joined Mar 2014
live_by_the_dealsJun 17, 2021 12:17 AM
211 Comments
Quote from Ransom View quoted comment :
This review is a serious issue for home use:



I wouldn't trust plugging that thing into just about anything anymore. Everything uses chips and sensitive electronics these days. Even your Fridge, Washer/Dryer, and Thermostat.

Probably fine for running tools at the job site, but not sure why you'd want a tri-fuel in those situations though. Wish they made more LNG/Propane inverters for home use.
Can anyone else corroborate this? I'm researching the THD level
Jun 17, 2021 12:56 AM
1.1K Comments
Joined Oct 2005
Irons82Jun 17, 2021 12:56 AM
1.1K Comments
Quote from FreeCake View quoted comment :
Can this run an ac unit?
^^ My question as well. Have a 3 ton central AC. Can it run it?

Also, about THD, all my sensitive electronics (TV, Computer, modem, router...etc...) are plugged into UPS sinewave unit. I understand the sinewave output is only when internal battery is being used. What about dirty power from generator? Peace

I will appreciate any input. Deciding between this unit, or the Champion Trifuel which is a couple hundred more, but reportedly a little lower THD.
Jun 17, 2021 12:59 AM
139 Comments
Joined Jul 2007
simiglenJun 17, 2021 12:59 AM
139 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from live_by_the_deals View quoted comment :
Can anyone else corroborate this? I'm researching the THD level
I had the Firman dual fuel and got the following results
1. Lights flickered
2. UPS beeped every minute due to power fluctuations. Battery died due to not being able to charge. Had to plug computers directly into wall.
3. Very noisy
4. Fuel selector switch broke after 1 year. Got a replacement from Firman (took them 3 months and constant emails). Then it broke while I was trying to install it.

Returned it to Costco. No issues.

Got myself the Predator 8750 Inverter (with Warranty). Costs more, but I can run my computers on this without having to worry.
https://www.harborfreight.com/875...+generator
2
Jun 17, 2021 1:13 AM
1.2K Comments
Joined Oct 2012
edcantu9Jun 17, 2021 1:13 AM
1.2K Comments
I used this unit last summer during a 2 week long power outage. I have a switch in the house and it delivers power to everything as if there was not a power outage except the outdoor 2ton ac unit. I ran all my sensitive electronics and we have many, Google homes, desktops, laptops, tablets, phones, tvs, wifi router, and everything ran fine and still does.
Jun 17, 2021 2:03 AM
26 Comments
Joined Sep 2014
spaceoceanJun 17, 2021 2:03 AM
26 Comments
Quote from edcantu9 View quoted comment :
I used this unit last summer during a 2 week long power outage. I have a switch in the house and it delivers power to everything as if there was not a power outage except the outdoor 2ton ac unit. I ran all my sensitive electronics and we have many, Google homes, desktops, laptops, tablets, phones, tvs, wifi router, and everything ran fine and still does.
Add a MicroAir soft start and you should be able to run AC. Mine is running on NG (which delivers 5900w continuous watt) and it powers up everything (we have a interlock system+50A generator inlet, we our heater, stove and dryer are on NG) including 3.5ton AC. I'm super excited considering I spent a fraction of a Generac standby system.
Jun 17, 2021 2:05 AM
26 Comments
Joined Sep 2014
spaceoceanJun 17, 2021 2:05 AM
26 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from TenseMeerkat7106 View quoted comment :
I bought one last summer when it was down to $599 in store. We get sporadic power outages and I've used it 4 times i think? About 20hrs on it, all propane.
I run our 240v well pump, lights, fridge, freezer, everything except the HVAC.
It's been great. Some lights flicker a bit but have not noticed any other issues.
It's been a great investment, having water when the power goes out is huge. No lights, i can deal with but no water to flush, wash, etc with a new baby would have been not fun.
Add a MicroAir soft start and you can run AC. I can run my 3.5 ton AC with Firman on NG along with everything else in the house. It is the best investment I have spent, a fraction of a whole house backup generator.
2
Jun 17, 2021 2:08 AM
26 Comments
Joined Sep 2014
spaceoceanJun 17, 2021 2:08 AM
26 Comments
Quote from FreeCake View quoted comment :
Can this run an ac unit?
Yes, with a soft start you can.

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Jun 17, 2021 6:58 AM
14 Comments
Joined Jan 2017
phillyboi84Jun 17, 2021 6:58 AM
14 Comments
These used to be $799 regular price and now $899.
Jun 17, 2021 12:23 PM
338 Comments
Joined Aug 2011
sovandara_cheaJun 17, 2021 12:23 PM
338 Comments
Quote from Ransom View quoted comment :
This review is a serious issue for home use:



I wouldn't trust plugging that thing into just about anything anymore. Everything uses chips and sensitive electronics these days. Even your Fridge, Washer/Dryer, and Thermostat.

Probably fine for running tools at the job site, but not sure why you'd want a tri-fuel in those situations though. Wish they made more LNG/Propane inverters for home use.
They do made the inverter closed frame duel fuel (propane/gas). It's a lot quieter and can run 10 hrs ish on a propane tank. It was on sale 600$ around this time last year too. However, it only has 2900 W power on propane (can safely run a portable AC, fridge, and charges for phones and such)
Jun 17, 2021 1:15 PM
45 Comments
Joined Dec 2019
TenseMeerkat7106Jun 17, 2021 1:15 PM
45 Comments
Quote from agblue View quoted comment :
Looking to buy this time around as well since I missed out last year. I would think this unit is capable of powering a window ac unit 10,000 btu along with a fridge and freezer.

How are the noise levels on this when using propane or any other fuel?

Also I see lots of comments praising inverter generators over standard ones since they produce a cleaner sine wave. Any issues with running the fridge or freezer?
It's loud, as in I wear earplugs when i start it up. Not a big deal when you are inside and it's outside, but if you are in town this might disturb your neighbors.
Zero issues with fridge or freezer or any other devices so far.
I shut off all my breakers before starting it up, then turn each back on one at a time so it's not as big of a load all at once.
Pro
Jun 17, 2021 2:04 PM
873 Comments
Joined Nov 2007
thenewyorkgod
Pro
Jun 17, 2021 2:04 PM
873 Comments
DO NOT GET THIS GENERATOR if you plan on using it for anything other than a job site. This is not suitable for home use and will flicker your lights, damage your electronics and provide very poor power.

INSTEAD - get either an inverter generator, OR a non inverter generaetor that has a THD of less than 5%.

I have both of those and they work wonderfully to power my entire home and provides clean power to all my delicate devices:

My inverter generator: https://www.amazon.com/Champion-6...175&sr=8-3

My non inverter but good THD: https://www.costco.com/generac-8%...46706.html

I would be glad to answer questions about either.
1
Jun 17, 2021 2:27 PM
988 Comments
Joined Jun 2004
galetsJun 17, 2021 2:27 PM
988 Comments
Quote from simiglen View quoted comment :
I had the Firman dual fuel and got the following results
1. Lights flickered
2. UPS beeped every minute due to power fluctuations. Battery died due to not being able to charge. Had to plug computers directly into wall.
3. Very noisy
4. Fuel selector switch broke after 1 year. Got a replacement from Firman (took them 3 months and constant emails). Then it broke while I was trying to install it.

Returned it to Costco. No issues.

Got myself the Predator 8750 Inverter (with Warranty). Costs more, but I can run my computers on this without having to worry.
https://www.harborfreight.com/875...+generator
I had this of very similar predator. Couldn't run ups on it either.
Jun 17, 2021 2:41 PM
666 Comments
Joined Jun 2012
deniboy2brJun 17, 2021 2:41 PM
666 Comments
Quote from jennsell811 View quoted comment :
Does anyone know if these are available in store?
i saw a bunch in the store in SF , skipped on this because is not an inverter.
Jun 17, 2021 3:01 PM
582 Comments
Joined Jul 2006
wethead4Jun 17, 2021 3:01 PM
582 Comments
Quote from TenseMeerkat7106 View quoted comment :
It's loud, as in I wear earplugs when i start it up. Not a big deal when you are inside and it's outside, but if you are in town this might disturb your neighbors.
Zero issues with fridge or freezer or any other devices so far.
I shut off all my breakers before starting it up, then turn each back on one at a time so it's not as big of a load all at once.
Do you use this with hvac central air?

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Jun 17, 2021 3:32 PM
45 Comments
Joined Dec 2019
TenseMeerkat7106Jun 17, 2021 3:32 PM
45 Comments
Quote from wethead4 View quoted comment :
Do you use this with hvac central air?
I do not. I run everything except the HVAC. My Hvac is on a separate panel in anther part of the house and i have this generator set up on an interlock/backfeed on my main panel.
Zero issues with 240v well pump and the rest of my 2000sq/ft house, except for some bulbs flicker.

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