You may have trouble finding how the Firman T07571 and T07573 vary and/or wonder whether you are not missing anything.
The main differences between the Firman T07571 and T07573 are that the Firman T07573 has a carbon monoxide sensor, a different design, and a price that is a tiny amount higher.
This carbon monoxide sensor stops the Firman T07573 if the levels of this lethal gas get too high around the generator.
Since the price difference is so small and the negative situations this helps you avoid are so grave, you likely just want to invest a bit more into the Firman T07573.
At the same time, there are many good generators without a CO-minder.
The Firman T07571 may be an older iteration of the Firman 7500w running / 9400w peak tri fuel generators but it is still a good option too.
Differences Firman T07571 vs T07573
The comparison between the Firman T07571 and T07573 is relatively straightforward since this second option is just the newer iteration.
According to Jesse the customer support rep, the main difference is that the Firman T07573 has a CO sensor and a slightly higher price.
Additionally, the designs of these Firman firman 7500w running / 9400w peak tri fuel generators are slightly different.
I expect that over time the Firman T07571 will just not become an option anymore.
However, for now, you can get a more easy-to-digest version of this comparison in the table below.
| Feature | Firman T07571 | Firman T07573 |
|---|---|---|
| Design | Different | Different |
| CO-Minder | No | Yes |
| Price Category* | $$$$ | $$$$ (A Bit Higher) |
| Check Current Price | Check Current Price |
*Price category at the time of writing
Other features Firman T07571 and T07573
You may also want to take another look at the common features of the Firman T07571 and T07573 before making your final decision.
| Feature | Firman T07571 | Firman T07573 |
|---|---|---|
| Running Watts | 7500 Running Watts (Varies For Different Fuel Types) | 7500 Running Watts (Varies For Different Fuel Types) |
| Starting Watts | 9400 Starting Watts (Varies For Different Fuel Types) | 9400 Starting Watts (Varies For Different Fuel Types) |
| Fuel Type | Tri Fuel: Gasoline, Natural Gas, And Propane | Tri Fuel: Gasoline, Natural Gas, And Propane |
| Voltage | 120/240 VAC | 120/240 VAC |
| Portable | Yes | Yes |
| Fuel Tank Capacity | 8 Gallons | 8 Gallons |
| Run Time @50% Load | 12 Hours | 12 Hours |
| Sound And Noise levels @50% Load | 74 dB | 74 dB |
| Fuel Efficiency (kWh Per Gallon) | 5.625 | 5.625 |
| Outlets | (1) 5-20R 120V 20A DUPLEX GFCI , (1) L5-30R 120V 30A TWISTLOCK, (1) L14-30R 120V/240V 30A TWISTLOCK, (1) 14-50R 120V/240V 50A | (1) 5-20R 120V 20A DUPLEX GFCI , (1) L5-30R 120V 30A TWISTLOCK, (1) L14-30R 120V/240V 30A TWISTLOCK, (1) 14-50R 120V/240V 50A |
| Fuel Gauge | Yes | Yes |
| Recoil Pull Start | Yes | Yes |
| Electric Start | Yes | Yes |
| Low Oil Shutdown | Yes | Yes |
| AC Frequency | 60 Hz | 60 Hz |
| Engine Displacement | 439cc | 439cc |
| 3-1 Data-Minder | Yes | Yes |
| Run Time Remaining | No | No |
| THD @ Full Load | 11%-14% | 11%-14% |
| Engine Type | 4 Stroke | 4 Stroke |
| Enclosed Design | No | No |
| Remote Generator Operation | No | No |
| Outlet Covers | Yes | Yes |
| Weight | 213 lbs (96.6 kg) | 213 lbs (96.6 kg) |
| Parallel Ready | No | No |
| Dimensions | 29.8″ L x 27.5″ W x 26.1″ H | 29.8″ L x 27.5″ W x 26.1″ H |
| Wheels | Yes | Yes |
| Warranties* | 3 Years Limited Warranty | 3 Years Limited Warranty |
| Check Current Price | Check Current Price |
*Warranties can vary from seller to seller
What can the CO-minder do for you?
It is possible that you are not entirely sure what the CO-minder aka the carbon monoxide shutdown alert system is and whether it is worth the extra investment of the Firman T07573.
When turning fuel into electricity both the Firman T07571 and T07573 generators tend to produce carbon monoxide which is an odorless gas that can be lethal.
For this reason, you don’t want to use generators inside or even close to your house.
Even then, you want to point the exhaust away from your home and take the other required safety precautions.
The CO-minder of the Firman T07573 adds a layer of safety in this area.
This is basically a sensor that measures the concentration of carbon monoxide around the sensor/generator.
When this concentration gets too higher, the Firman T07573 turns off.
On the one hand, there are plenty of good generators that don’t have a CO-minder because smart usage typically helps you avoid this issue.
On the other hand, a slightly bigger investment adds an extra layer of safety that can help you avoid grave negative consequences in case something does go wrong.
Your choice ultimately depends on details like your budget but the Firman T07573 does have the upper hand in this area.
Winner: Firman T07573
Price Firman T07571 vs T07573
Your next question could then be how much of a price difference the CO-minder involves.
At the time of writing, this difference is relatively small if you look at the overall investment requirements for the Firman T07571 and T07573 but in favor of the T07571.
Since this can vary over time and depend on where you get them, I’m not going to mention any specific numbers in this area.
Instead, you can check out the current price differences below.
Winner: Firman T07571
User reviews Firman T07571 vs T07573
Customer support rep Jesse did not mention any other big differences between the Firman T07571 and T07573.
However, there are sometimes cases where brands also change smaller details in iteration generations.
These can sometimes show up in customer reviews regarding things like durability.
That being said, the customer reviews of the Firman T07571 and T07573 are very similar.
There are a good amount of people that mention these generators are relatively loud.
Additionally, there are a few individuals that did not expect the somewhat higher THD which is suboptimal for smaller electronic devices.
Lastly, there are a few exceptional shipping issues here and there.
Overall, customers are still relatively happy with the Firman T07571 and T07573 but you do want to keep the things above in mind.
Is the Firman T07573 worth it over the T07571?
In short, the Firman T07573 is mainly different from the T07571 in that it comes with a CO-minder, a different design, and a price that is just a bit higher.
Whether or not this is worth it depends on your budget and how much you fear gathering too much CO around the generators.
It is fair to say that the price difference is not that big in the bigger picture and that the CO-minder can help you avoid some very negative situations.
In simpler words, the Firman T07573 is likely worth the extra investment.
At the same time, a generator can also be good without a CO-minder.
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