Duromax 12000HX vs 12000EH

Which is better, the Duromax 12000HX or the 12000EH?

Here’s a comprehensive comparison between the Duromax 12000HX and the 12000EH, 12000-watt dual-fuel generators.

I talk about the key differences between the two and whether the additional features of the HX model justify its higher price point.

Read on to learn more about Duromax 12000HX vs 12000EH…

Duromax HX vs EH

When I researched about a dozen or so Duromax Generators, I kept asking myself, “Duromax HX vs. EH portable generators, what’s the difference?”

Well, it turns out that the answer depends on which Duromax dual fuel generators you are comparing.

That’s because Duromax doesn’t have a “standard” set of features for the EH series or the HX series other than the fact the HX series typically has a few additional features and costs more than the EH series.

However, I’ve learned that when it comes to the Duromax HX vs. EH series… it’s not always worth paying extra for the HX portable generators with dual fuel technology.

So, let’s do a quick comparison of two of their top-selling models.

Duromax 12000HX vs 12000EH

Both the XP12000HX vs XP12000EH feature dual-fuel technology, which means they’ll both run on either gasoline or propane.

They both feature a full-featured power panel with numerous ac power outlets, including standard GFCI Outlets.

Both models also feature an AC 120/240V 30A outlet, and an AC 120/240V 50A outlet… these types of outlets can be used for connecting either of the portable generators to a transfer switch for powering your house during a blackout (that’s what I use mine for).

Neither of the models utilizes an inverter, so they may not be the best choice for powering sensitive electronic devices.

Both models have approximately the same runtimes:

Gasoline runtime = 19 hours at 25% load and between 8 – 9 hours at 50% load.

Propane runtime = 14 hours at 25% load and 7 hours at 50% load.

Both models have the same power output:
Gasoline = Peak Wattage: 12,000 watts Running Wattage: 9,500 watts.
Propane = 11,400 Peak Wattage Running Wattage = 9025.

However, there are some very important differences between the 12000HX vs 12000 EH models, so let’s take a closer look at the HX vs EH series…

Here is a new section for your article that expands on the power output and fuel efficiency comparison between the DuroMax 12000HX and 12000EH generators:

Power Output and Fuel Efficiency Comparison

When it comes to power output and fuel efficiency, the DuroMax 12000HX and 12000EH generators share some similarities but also have notable differences. Let’s take a closer look at how these two models stack up in these crucial areas.

Power Output

Both the 12000HX and 12000EH are rated for a maximum power output of 12,000 watts, making them suitable for powering a wide range of appliances and tools. However, their rated wattages at different load levels vary slightly:

Load Level	DuroMax 12000HX	DuroMax 12000EH
Peak Watts (Gasoline)	12,000	12,000
Peak Watts (Propane)	11,400	11,400
Running Watts (Gasoline)	9,500	9,500
Running Watts (Propane)	9,025	9,025

As you can see, the starting and running watt ratings are identical, but the rated wattages differ slightly depending on the fuel type used.

Fuel Efficiency

Both generators are dual-fuel capable, meaning they can run on either gasoline or propane. However, their fuel efficiency varies based on the fuel type and load level:

Fuel Type	Load Level	DuroMax 12000HX	DuroMax 12000EH
Gasoline	50% Load	9 hrs	8 hrs
	25% Load	19 hrs	19 hrs
Propane	50% Load	7 hrs	7 hrs
	25% Load	14 hrs	14 hrs

As you can see, both generators have almost identical fuel efficiency ratings, with the 12000HX and 12000EH providing up to 19 hours of runtime on gasoline and 7 hours on propane at a 50% load level.

While the power output and fuel efficiency specifications are very similar between these two models, it’s important to consider other factors, such as noise levels, portability, and additional features, when deciding which generator best suits your needs.

CO Alert and Shut-Off Sensor

The XP12000HX dual fuel generator has a feature called CO Alert, a built-in Carbon Monoxide detector that automatically shuts down the generator when it detects unsafe levels of carbon monoxide.

However, the XP12000EH portable generator does NOT have the CO Alert feature.

CO Alert Technology: A Crucial Safety Feature

When it comes to portable generators, safety should be a top priority, especially when using them in enclosed or semi-enclosed spaces. One of the key safety features that sets the DuroMax 12000HX apart is its CO Alert technology.

Understanding the Dangers of Carbon Monoxide

Carbon monoxide (CO) is a colorless, odorless, and highly toxic gas that can be produced by the combustion of fuels in generators. Exposure to high levels of CO can lead to serious health issues, including headaches, dizziness, nausea, and even death in extreme cases.

How CO Alert Technology Works

The DuroMax 12000HX is equipped with a built-in CO Alert system that continuously monitors the ambient air for dangerous levels of carbon monoxide. If the CO levels exceed a predetermined threshold, the system automatically shuts down the generator to prevent further exposure and potential harm.

This innovative safety feature provides an extra layer of protection for users, especially in situations where the generator is being used in a confined space or in areas with poor ventilation.

Benefits of CO Alert Technology

The CO Alert technology offers several key benefits:

• Increased safety: By automatically shutting down the generator when CO levels become unsafe, this feature can help prevent accidental poisoning and protect the health and well-being of users and those around them.
• Peace of mind: Knowing that your generator is equipped with a reliable CO monitoring system can provide added peace of mind, especially when using it in potentially hazardous environments.
• Compliance with safety regulations: Many local and national regulations require the use of CO monitoring systems for portable generators, and the CO Alert technology helps ensure compliance with these safety standards.

While proper ventilation and following manufacturer guidelines are still essential when operating any portable generator, the CO Alert technology in the DuroMax 12000HX offers an additional safeguard against the dangers of carbon monoxide exposure.

So, when it comes to additional safety features to protect you and your family, the XP12000HX wins.

Push Button Start

The XP12000HX has a very convenient push-button start feature. Push the start button on the HX, and the generator will make several attempts to fire up the engine.

If the HX fails to start after several attempts, the generator shuts down to preserve battery life and to give you time to figure out why it didn’t start (e.g., low oil, out of gas or propane, closed gas valve, etc.).

The XP12000EH does NOT have a push-button start. Instead, it has a key, which is just another thing to keep track of, that needs to be held in the start position until the engine starts.

The push-button start feature of the 12000HX makes it easier to start than the 12000EH model.

Battery Shut-Off Switch

It may not seem like a big deal, but having a battery shut-off switch helps prevent the battery from draining while the generator isn’t in use. And for most people, the generator sits without being used for months, even years at a time.

The XP12000HX has a very conveniently located battery shut-off switch on the front panel.

When you’re done running the generator, you “flip the switch,” and the battery is automatically disconnected from the rest of the system, dramatically increasing the odds that the battery won’t be dead the next time you use your generator.

The XP12000EH does not have a battery shut-off switch.

So, if you want to disconnect the battery when the XP12000EH isn’t in use (and you should) …

You have to use tools to remove the metal panel that protects the battery, and then you have to use tools to disconnect the battery cables. Then you have to use tools to reinstall the metal panel, and then the next time you want to use the generator, you have to repeat the entire process in reverse.

When prepping your generator for storage, the XP12000HX wins by a landslide.

Multimeter With Digital Display

The XP12000HX has a digital display that makes it easy to check helpful information like voltage, frequency, current operating hours, and total runtime hours (very helpful when following the recommended generator maintenance schedule).

On the other hand, the XP12000EH only has an analog Volt Meter, which only allows you to check your output voltage.

GFCI Outlets

The XP12000HX has two 120v 20-amp GFCI-protected outlets perfect for connecting most household products and power tools on the job site.

The XP12000EH has a single 120v GFCI-protected outlet. However, it’s a 30-amp outlet that allows you to connect more demanding household products and job site tools (e.g., a circular saw or table saw).

So, both generators provide plenty of portable ac power when needed.

Automatic Choke

The XP12000HX has an automatic choke, which makes it much easier to start in cold weather.

The XP12000EH has a manual choke, which isn’t nearly as convenient as an automatic choke.

Price

The XP12000HX sells for approximately $200 more than the XP12000EH.

You can check out the best prices currently available on Amazon and eBay.

How To Save Two Hundred Dollars

Honestly, you could save yourself two hundred dollars if you can live without the extra GFCI-protected outlet that the HX offers because all you’d have to do is plug a $15.00 heavy-duty power strip into one of the outlets on the EH, and you’d be all set.

However, the XP12000HX gives you several handy operational features that make using your generator easier that the XP12000EH doesn’t have (you may also want to check out the XP12000DX as well).

The additional ease-of-use features that the XP12000HX offers include a push-button start, a battery shut-off switch, a multimeter digital display with all kinds of additional information, and an automatic choke.

Plus, the XP12000HX gives you the CO Alert feature, an additional safety feature that some people may find helpful.

The XP12000EH doesn’t have any of those things.

I’d say the exclusive features offered with the HX model (XP12000HX) are worth spending the extra two hundred dollars on.

However, that’s not always the case…

Sometimes, when it comes to Duromax EH v.s HX… I feel that the EH models offer a much better value.

Check out this Duromax XP13000EH vs. XP13000HX blog post to learn why I chose to buy the EH model to power my entire house instead of the HX model… and how I saved three hundred dollars in the process.

And also check out our Duromax Generator Reviews or xp13000eh vs xp12000eh articles for more great ideas on choosing the right generator for your needs.

XP12000HX Specs vs XP12000EH Specs

	XP12000HX	XP12000EH
Brand	Duromax	Duromax
Type	Portable, Home Backup	Portable, Home Backup
Fuel Type	Dual Fuel – Gasoline, Propane	Dual Fuel – Gasoline, Propane
Peak Watts Gasoline	12,000 watts	12,000 watts
Running Watts Gasoline	9,500 watts	9,500 watts
Fuel Tank Capacity Gasoline	8.3 gallons	8.3 gallons
Runtime 25% Load	19 hours	19 hours
Runtime 50% Load	9 hours	8 hours
Electric Start	Yes – Push Button	Yes – Key Switch
Battery Switch	Yes	No
Recoil Start	Yes	Yes
GFCI Outlets	Yes	Yes
5-20R	4	2
L5-30R	1	1
L14-30R	1	1
14-50R	1	1
12v	No	Yes – 12V Post
Engine Manufacturer	DuroMax Power Equipment	DuroMax Power Equipment
Engine Type	4-Stroke	4-Stroke
Engine Size	457cc	457cc
Cast Iron Sleeve	Yes	Yes
Automatic Low Oil Shutdown	Yes	Yes
Voltage	120V/240V	120V/240V
Frequency	60Hz	60Hz
Automactic Voltage Regulator	Yes	Yes
Noise Level	74db	74 db
CO Sensor Shutdown	Yes	No
Idle Control	No-Load Low Idle	No-Load Low Idle
Dimensions	29″L x 30″W x 26″H	29″L x 30″W x 26″H
Weight	240 lbs	238 lbs
Warranty	3 years	3 years
Wheel & Handle Kit	Included	Included
What’s In The Box?	XP12000HX Generator, Oil Funnel, Spark Plug Wrench, Tool Set, Wheel & Handle Kit, Propane Regulator, Owner’s Manual	XP12000EH Generator, Oil Funnel, Spark Plug Wrench, Tool Set, Wheel & Handle Kit, DC Charging Cables, and Owner’s Manual

FAQ

How does the CO Alert safety feature work on the DuroMax 12000HX?

The CO Alert system continuously monitors carbon monoxide levels around the generator. If dangerous levels are detected, it automatically shuts down the generator to protect users from this invisible, odorless gas. The 12000EH does not include this potentially life-saving feature.

What makes starting these generators different?

The 12000HX features a convenient push-button start system that makes multiple start attempts automatically. It also includes an automatic choke for easier cold-weather starts. The 12000EH uses a traditional key start system with manual choke, requiring more user intervention.

How do I monitor the generator’s performance?

The 12000HX includes a digital multimeter display showing voltage, frequency, and runtime hours, making it easy to track performance and maintenance schedules. The 12000EH only offers a basic analog voltage meter.

What’s the difference in power outlets between models?

Here’s the outlet configuration:

• 12000HX: Four 120V GFCI outlets, 120/240V 30A outlet, 120/240V 50A outlet
• 12000EH: One 120V 30A GFCI outlet, 120/240V 30A outlet, 120/240V 50A outlet

How long can these generators run on a single tank?

Both models offer similar runtime on gasoline:

• 25% load: 19 hours
• 50% load: 8-9 hours

On propane:

• 25% load: 14 hours
• 50% load: 7 hours

What about battery maintenance during storage?

The 12000HX features a convenient battery shut-off switch on the front panel that prevents battery drain during storage. The 12000EH requires manual battery disconnection using tools, making storage preparation more time-consuming.

Is the price difference worth it?

The 12000HX costs approximately $200 more than the 12000EH. The additional investment brings enhanced safety features, digital monitoring, push-button start, and easier maintenance. For users prioritizing convenience and safety features, the price difference is justified.

What are the key maintenance differences?

The 12000HX’s digital display helps track maintenance schedules by showing total runtime hours. Both models share basic maintenance requirements, but the HX’s automatic choke and battery switch make routine care easier.

Can both models power my whole house?

Yes, both generators can connect to a home transfer switch through their 120/240V 50A outlets. They deliver identical power output:

• Gasoline: 12,000 peak watts, 9,500 running watts
• Propane: 11,400 peak watts, 9,025 running watts

What comes included with each model?

Both generators include:

• Wheel and handle kit
• Oil funnel
• Spark plug wrench
• Tool set
• Owner’s manual
• Propane regulator (HX model)
• DC charging cables (EH model)