Forum Thread

Firman 2900W Running / 3200W Peak Electric Start Gasoline or Propane Fuel Powered Inverter Generator Gas and LP $629.99

$629.99
+4 Deal Score
3,683 Views
Costco has this dual fuel inverter generator $150 off (valid til 21-Jan) with free shipping. Things I like about this:

1. Dual fuel - running mine on propane so it's clean and I don't have to worry about stale gas when I store it
2. Electric start
3. Costco 3 year warranty

The only negative for me was the noise but it didn't seem so bad in the youtube review.

Here's a youtube review: https://www.youtube.com/watch?v=BrfRlADS798

https://www.costco.com/firman-290...81637.html

Shipping & Handling Included*

Features:
171 cc Dual Fuel Engine with Low Oil Shut Off and Cast Iron Sleeve
1.8 Gallon Tank Provides 9 Hours of Runtime. Propane Tank Not Included
RV Ready Multi Feature Control Panel with Covered Outlets
5.5" Heavy Duty Never-Flat wheels and High Leverage U-shape Folding Handle
3 Year Warranty

Owner's manual:
https://www.firmanpowerequipment....anual-.pdf

Firman 1101 30 Amp Generator Power Cord (TT-30P to 3x5-20R) - $66.54
https://www.walmart.com/ip/Firman.../591540718

For reference: A good propane conversion kit for a gas inverter generator runs $200-$250 .. and you have to install the kit (or pay extra for an installer).
Share
Good deal?
You gave thanks to david3808 for this post.
Thank you!
david3808 posted this deal. Say thanks!
Add Comment
Created 01-11-2020 at 11:33 AM by david3808
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.
Deal
Score
+4
3,683 Views
$629.99

14 Comments

1

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2018
L3: Novice
109 Posts
110 Reputation
#2
Couple of comments for those who might not be generator savvy.

2900/3200W when running on gas, 2600/2900W when running on propane.

The rated 9 hour runtime on gas is at 1/4 load (2900 / 4 = 725W) when in eco mode. Running higher loads will throttle up the engine and reduce run time.

Cannot use gas with more than 10% ethanol, also recommend the use of fuel stabilizers.
Reply Helpful Comment? 1 0
This comment has been rated as unhelpful by Slickdeals users
Joined Aug 2006
L10: Grand Master
11,242 Posts
2,531 Reputation
#3
I guess the duel fuel option worth the extra $130 over the previous deal on the gas only model.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Apr 2008
L3: Novice
234 Posts
46 Reputation
#4
This is such a stupid good deal. We can't even buy the Firman generator directly from Firman for this price at my work.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2008
L10: Grand Master
7,609 Posts
1,646 Reputation
#5
Quote from billcsho
:
I guess the duel fuel option worth the extra $130 over the previous deal on the gas only model.

It is to me. I hate storing all that gas, since it goes bad so quickly. Propane does not go bad.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2018
L3: Novice
109 Posts
110 Reputation
#6
Quote from billcsho
:
I guess the duel fuel option worth the extra $130 over the previous deal on the gas only model.
I think it ultimately depends on your preference. Is it worth an extra $130 to you?

Personally, I find gas to be more convenient and readily available than propane. I only use propane for my gas grill. I currently buy gas for my small engines (snowblower, lawnmower, weed whacker, etc) so it's already necessary to store gas.

I've had portable generators for 14 years and have never had issues with gas gumming up my carburetors in generators or small engines.

1) I always use fuel stabilizers. I used to use Sta-bil but recently switched to Star Tron enzyme gas treatment based on overall reviews.

2) My generators and lawnmower have a fuel shut off valve. I always shut it off and let it run *dry*. I know there's some fuel left in the bowl but in my experience, this hasn't caused any gumming problems when used with stabilizers. Knock on wood, I've had engines that have never need a carb tune up even after 15 years.

3) I switched to ethanol free gas which even though it costs more, it avoids the risk of gumming up that is associated with ethanol blend gas. Probably Overkill but I do add stabilizers to it as well. You can find ethanol free gas stations at www.pure-gas.org

Living in Michigan, I use gas year round for lawn equipment or snowblowing and gas will sit in the tank of my lawn/snow equipment for 5 - 8 months with no problems.

For my needs, I have three 5 gallon gas cans and typically have between 10-15 gallons available for emergencies at any given time, all are treated with stabilizers.
- two 5 gallon cans to store ethanol free gas (typically exhausted in 12-18 months). Refilled when any can runs empty.
- one 5 gallon can with regular ethanol 10% blend solely for extended emergencies. The gas is cycled yearly by dumping it in my car's gas tank and replacing with fresh gas.

I have two Champion inverter generators 1600/2000W through a previous SD, used for emergency backup. House is wired up with a generator interlock kit and a 30A power inlet so that I can power my furnace, lights, fan, fridge, freezer and even run laundry. I have the parallel kit and run it in single or parallel based on load requirements. I like the redundancy of two smaller units (in case one won't start). It's nice to have one running and another on standby so I just need to switch generators instead of refueling a hot generator (especially when it runs out of gas in the middle of the night). Also love the portability as the smaller units weigh around 45 lbs and can be stored on a shelf instead of on the floor, also portable for camping, etc.

I've already put them to the test, last outage was for 3.5 days due to bad storms and my combined generator use of approximately 60 hours burned through 10 gallons of gas. I feel that having enough gas to last over 3 days is pretty comfortable and in a pinch, I can always siphon gas out of my car or get more gas if any nearby stations have power and are open.
Reply Helpful Comment? 1 0
This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2018
L3: Novice
109 Posts
110 Reputation
#7
Quote from steppedinit
:
It is to me. I hate storing all that gas, since it goes bad so quickly. Propane does not go bad.
If you use stabilizers, gas will easily last up to 2 years. Not using stabilizers and using ethanol blend gas is what gums up your carb.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2018
L3: Novice
109 Posts
110 Reputation
#8
I came across one comment online that this generator is pretty loud (almost as loud as an open frame generator) and isn't great if you need something quieter. Firman doesn't post their dBA levels so if you need something quieter, might need to confirm this.

http://forums.goodsamclub.com/ind...m#29906788
Reply Helpful Comment? 2 0

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2010
Slick green alien
309 Posts
520 Reputation
Original Poster
Pro
#9
Quote from springchicken
:
I came across one comment online that this generator is pretty loud (almost as loud as an open frame generator) and isn't great if you need something quieter. Firman doesn't post their dBA levels so if you need something quieter, might need to confirm this.

http://forums.goodsamclub.com/ind...m#29906788 [goodsamclub.com]
Did you watch the youtube video that I posted? What are your thoughts about his sound tests? He even said it's "a very quiet generator." Noise was a concern for me as well but it sounds like it's noisiest in the back.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2018
L3: Novice
109 Posts
110 Reputation
Our community has rated this post as helpful. If you agree, why not thank ?
#10
Quote from david3808
:
Did you watch the youtube video that I posted? What are your thoughts about his sound tests? He even said it's "a very quiet generator." Noise was a concern for me as well but it sounds like it's noisiest in the back.
I did watch it, I think noise is somewhat subjective because it depends on what you're expecting. This Firman's "quietest" is as loud as the "loudest" of benchmark portable inverter generators.

This Firman is 58 dB at 25% load (725W) but doesn't mention how loud it is at higher loads, I'm going to guess that it's closer to 65 dB at full load since Champion has a similar sized inverter generator with a similar dB rating.

Honda and Yamaha make arguably the quietest inverter generators but they're pricey. A Honda EU2000i (1600/2000W) is 53 dB (1/4 load) - 59 dB (full load). The larger EU3000i (2800/3000W) is 50 dB (1/4 load) - 57 dB (max load). If you've seen and heard these in person, then use those as your reference.

My Champion 100565 (1600/2000W) is 53 dB at 25% load (400W) and probably closer to 59-60 dB at full load (1600W) by my best guesstimate. Subjectively, I would have no issues standing 3' away and having a conversation with someone when it's running or camping adjacent to a site with it when at 1/4 load (53 dB) but wouldn't appreciate being stuck to one overnight when running at full load (59 - 60 dB). Angling the exhaust away from people certainly directs the sound away but it's still going to be audible. Running two in parallel won't double the noise but probably increase it by around 3 dB.

So that said, the Firman is still going to be loud if you are restricted by the noise level. However, it is going to be quieter than a standard open frame non inverter generator that can easily be 65 - 75 dB which would irritate even the deaf.

Remember dB is logarithmic.
A 3 dB increase is about 25% louder, 6 dB is about 50% louder and 10 dB is about twice as loud.

So depending on how much you're loading it and how much it gets to idle or rev up will dictate how loud it'll be for your use.
Reply Helpful Comment? 4 0
Last edited by springchicken January 11, 2020 at 08:17 PM.
This comment has been rated as unhelpful by Slickdeals users
Joined Mar 2011
L3: Novice
139 Posts
36 Reputation
#11
Quote from springchicken
:
I did watch it, I think noise is somewhat subjective because it depends on what you're expecting. This Firman's "quietest" is as loud as the "loudest" of benchmark portable inverter generators.

This Firman is 58 dB at 25% load (725W) but doesn't mention how loud it is at higher loads, I'm going to guess that it's closer to 65 dB at full load since Champion has a similar sized inverter generator with a similar dB rating.

Honda and Yamaha make arguably the quietest inverter generators but they're pricey. A Honda EU2000i (1600/2000W) is 53 dB (1/4 load) - 59 dB (full load). The larger EU3000i (2800/3000W) is 50 dB (1/4 load) - 57 dB (max load). If you've seen and heard these in person, then use those as your reference.

My Champion 100565 (1600/2000W) is 53 dB at 25% load (400W) and probably closer to 59-60 dB at full load (1600W) by my best guesstimate. Subjectively, I would have no issues standing 3' away and having a conversation with someone when it's running or camping adjacent to a site with it when at 1/4 load (53 dB) but wouldn't appreciate being stuck to one overnight when running at full load (59 - 60 dB). Angling the exhaust away from people certainly directs the sound away but it's still going to be audible. Running two in parallel won't double the noise but probably increase it by around 3 dB.

So that said, the Firman is still going to be loud if you are restricted by the noise level. However, it is going to be quieter than a standard open frame non inverter generator that can easily be 65 - 75 dB which would irritate even the deaf.

Remember dB is logarithmic.
A 3 dB increase is about 25% louder, 6 dB is about 50% louder and 10 dB is about twice as loud.

So depending on how much you're loading it and how much it gets to idle or rev up will dictate how loud it'll be for your use.
Great comment and sharing! Thank you very much.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined May 2017
New User
12 Posts
#12
Anyone know what size magnetic drain plug or dipstick is needed for this model? Also, I shopped around and if you are interested in the Firman 25ft TT30 to 3 outlet extension cord Walmart.com had the best price (firman model number is 1101).
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Oct 2009
L3: Novice
160 Posts
50 Reputation
#13
Really considering getting this for our cabin. Would be nice to hook it up to our 200 gallon propane tank and have it ready to fire up when power is out. Need to run an RV style furnace, a full size fridge/freezer and some led lights in a pinch.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2010
Slick green alien
309 Posts
520 Reputation
Original Poster
Pro
#14
Quote from 99greenjeeper
:
Really considering getting this for our cabin. Would be nice to hook it up to our 200 gallon propane tank and have it ready to fire up when power is out. Need to run an RV style furnace, a full size fridge/freezer and some led lights in a pinch.
Received mine yesterday. Will do the 5 hr break-in this weekend.
Reply Helpful Comment? 0 0
This comment has been rated as unhelpful by Slickdeals users
Joined Oct 2009
L3: Novice
160 Posts
50 Reputation
#15
Quote from david3808
:
Received mine yesterday. Will do the 5 hr break-in this weekend.
Sweet, post your impressions when you have a chance.
Reply Helpful Comment? 0 0
Page 1 of 1
1
Join the Conversation
Add a Comment
 
Link Copied to Clipboard