What does the term "Hybrid" or "Dual Fuel" mean?
The terms "Hybrid" and "Dual Fuel" on our generators are describing our generators ability to run on both propane or gasoline.
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DuroMax Generators Basic FAQ
What is the THD for our generators?
DuroMax portable generators will output an industry standard total harmonic distortion (THD) rating of about 5% or less under normal loads, and can be up to 20% on rough surge loads. They will produce a sine wave, not a modified or square wave. This
What is the difference between the EH and HX series?
Both Series feature DuroMax CO Alert, but the warranty and panel features vary by model. Please see the product specifications for the specific models you are interested in.EH Series: Is equipped with a 3 year warranty. HX Series: Is equipped with a
Where are our generators made?
Our generators will be designed by our engineering team in Ontario, California, and built overseas to our specifications.
Do your electric start generators come with a battery?
Yes, all our electric start generator models include the 12V battery needed for the electric start. The battery is disconnected on arrival to make sure it keeps a charge.
Can you convert our dual fuel generators to natural gas?
DuroMax does not have natural gas conversion kits available. Any use of aftermarket parts will void the generator warranty.
How can I make my generator quieter?
DuroMax generators are equipped with oversized automotive style mufflers to reduce noise as much as possible. The noise generated is due to the engine and not the muffler. We don't recommend the use of any 3rd party muffler silencers to lower noise.
Do your dual fuel generators include the propane regulator and propane hose?
Yes, all our dual fuel generators will include the propane regulators and propane hose with a standard QCC1 ACME Style Connector.
What is the difference between DuroMax and DuroStar model variants?
DuroMax and DuroStar are sister brands. Both are built to the same quality and standards. Please note specifications may vary from model to model.
What are the Natural Gas Fuel Pressure and BTU Requirements for Tri-Fuel Generators?
Our Tri-Fuel Generators require fuel pressure at all load ranges to be 6.0 - 9.0 inches of water column for Natural Gas. For proper performance, check your generator’s BTU requirements as the following are the recommended specs depending on series. •
When should I change the oil on my DuroMax Engine in my Generator/Water Pump/Pressure Washer?
While we recommend checking the oil level before every use, the initial oil change during break-in should be completed at 8 hours of use. Then regular maintenance oil changes should be completed every 100 hours of residential use and every 50 hours f
Can these generators be hooked directly to a transfer switch or interlock?
Yes, all our generator models will be compatible with a transfer switch or interlock kit.
How long can my generator run continuously?
The generator can run continuously for as long as fuel is supplied to it, but the generator will still need to be shut down momentarily to perform the scheduled maintenance recommendations shown in the generator manual as the maintenance becomes due.
Can I vent my generator exhaust from an enclosed area?
No. Due to safety concerns with Carbon Monoxide build up we always recommend running the generator outdoors in a well ventilated space. The consumer product safety commission officially recommend running portable generators outdoors and at least 20 f
How do I connect the generator to my home?
Most of our generator models are compatible with an interlock kit, generlink, or 2 pole manual transfer switch. Inverter generators will require 3 pole transfer switch. Please see a local certified electrician for the best transfer switch option for
Can I hook my dual fuel generator up to my large home propane tank?
Yes, all of our dual fuel generators will be capable of hooking up to a home propane tank as long as your using the original propane hose and regulator provided in the connection, and feeding the generator the correct PSI based on the model. Please s
Do you sell an aftermarket remote start kit for your generators?
We currently do NOT offer remote start kits for our generators at this time that are not equipped with this feature from the manufacture. However, the following series below are equipped with a remote start from the manufacture.
What will happen if the generator gets overloaded?
All our DuroMax generators will be equipped with an overload protection breaker that will flip and cut off the power in the event of an overload.
What is the input pressure requirement for our generators to operate on propane?
All our dual fuel generators 5500 watt or lower will require 11 inches of water column to operate properly, and all our dual fuel generators 8500 watt or larger will require at least 3 PSI of pressure to operate properly. Please ensure you use the or
How should the generator be shut off after the power comes back on?
First turn the main breaker in the interlock or transfer switch off; then you'll want to shut he generator breaker "off". Finally, turn the key or press the push start button to shut the generator off, and allow the unit to power down before disconne
How should I store my generator if I'm planning on using it in the same day?
Step 1: Move the main breaker to the off position.Step 2: Allow the generator to run for 3-5 minutes.Step 3: If running on propane or natural gas simply turn off the fuel source; then the battery switch to the off position. If running gasoline turn t
How should I store my generator if I'm planning on storing my generator for over 30 days?
Step 1: Move the main breaker to the off position.Step 2: Allow the generator to run for 3-5 minutes.Step 3: If running on propane or natural gas simply turn off the fuel source. If running on gasoline turn the generator off by moving the fuel valve
Does the generator automatically recharge the 12V battery while running?
Yes, all of our electric start generator models will automatically recharge the onboard battery while the generator is running. This may take up to two hours depending on the remaining charge on the battery. Even if you start the generator with the p
How frequent do I need to perform maintenance on my generator?
The maintenance schedules can vary between our generator models, but all models will have an hour or lifetime hour intervals required for maintenance. Please see your specific generator manual under the "Maintenance schedule" section for more details
Where could I take my generator if it needs a warranty repair?
If your having trouble with any of our products we would recommend to start a claim on our website in order to get you assistance your unit. Below is a link where you can initiate a claim. (CLICK HERE) TO START WARRANTY CLAIM. Please note, any claim
What Oil Filter Can I Use on the XP15000E or XP15000EH?
Wix 57035Cub Cadet 751-12690 & 951-12690
What Oil Filter Can I Use on the XP15000HX or XP15000HXT?
The oil filter that is compatible with the XP15000HX and XP15000HXT is by the brand K&N and model number is HP-1003. However, If you are wanting to place an order for an OEM manufacture oil filter for the XP15000HX or XP15000HXT. Please provide us w
What Oil Filter Can I Use on the XP16000iH?
STP S4967FRAM PH4967
How do I start my generator in colder temperatures?
We recommend using 5W-30 pure synthetic oil if your using the generator in below freezing temperatures to assist with starting. In extremely cold regions it might be necessary to use a gasoline additive if using gasoline, or a propane tank warmer if
What is the automatic idle control feature used for?
The automatic idle control feature on our open frame generators is mainly used for jobsites to help lower the RPM and conserve fuel while the generator isn't drawing a load, and once a load is demanded the generator will return to the normal RPM and
Can your generators be operated in the rain or snow?
We don't recommend running our generators in a direct rain downpour or snowstorm without some type of overhead protection to keep the generator dry while operating. I.E. Gentent.
Do your generators run on liquid or vapor propane?
All our dual fuel generator models will only run on the propane in the vapor form.
What does the recharge indicator light mean?
The recharge indicator light on our generators is just letting you know that the generator is recharging its onboard battery and this light will stay on until the 12V battery is recharged to 12.6V or greater.
If the battery dies in an electric start generator, can it still start with the recoil start?
Yes, Most of our electric start generators can still be started with the pull start feature even if the battery dies. PLEASE NOTE: The following DuroMax Models are NOT equipped with a pull start (Recoil Start) system. XP15000E, XP15000EH, XP16000iH,
What type of gasoline is recommended in our generators?
We recommend using clean, fresh, unleaded gasoline with an 87 Octane or greater with a 10% or less ethanol cut.
Does the generator need to be grounded with a grounding rod?
Not normally for backup home power. This answer can vary by location. Please consult a certified electrician for local grounding codes in your area.
Can you use synthetic oil in our generators?
Yes, you can use any 30W, 10W-30, or 5W-30 synthetic oil in our generators after the break in period.
DuroMax XP9000iH Remote Start Issue
For the DuroMax XP9000iH remote start feature, if this remote is lost or you are needing a replacement remote start. Unfortunately it will require for the complete panel to be replaced along with the remote. As these are sync'd from the manufacture.
What is the difference between an Inverter Generator and Open Frame Generator ?
There are a few key differences between an "Inverter Generator" and "Open Frame" generator. Inverter generator will operate quieter than an open frame generator with also being more fuel efficient and have a lower THD percentage of just below 5%. Bel
Central AC -Portable Generator Compatibility
Hello. Thank you for reaching out to DuroMax Support. In regards to the topic of running a Central AC with a portable generator, The following are suggestions based off existing customers that have used our generators to run their AC. First, It will
I need a Cover for my generator
If you are needing a Storage cover for your generator, we have provided links down below that we currently offer. Please note, at this time we unfortunately do not offer a cover for the XP15000 or XP16000 series. DuroMax Large Cover (Fits 8,500 watt
DuroStar DS4000S Wheel Kit
If a customer happens to ask if we offer a wheel kit for this generator. We unfortunately do not have wheel kits offered for the DS4000s anymore as this model number has been discontinued and no longer supported.
Difference between Generator series
Below is a description of the suffix on the model number of the generator and what it means:.
Aluminum vs Copper Windings
Copper Windings:. Aluminum Windings:. Copper Windings:. Aluminum Windings:
What is Carbon Monoxide (CO Sensor) used for?
DuroMax generators, like many modern portable generators, are equipped with carbon monoxide (CO) sensors as a critical safety feature to protect users from CO poisoning. ✅ Prevents CO poisoning in case of improper use.✅ Meets modern safety regulation
Bypassing CO (Carbon Monoxide) Sensor
At DuroMax, safety is our top priority. We cannot and will not provide instructions on how to bypass, disable, or modify the CO (Carbon Monoxide) sensor on any DuroMax generator or any other equipment. The CO sensor is a critical safety feature desig
Generator Sales To California
The only Generator we currently can sell within the state of California is the DuroMax XP15000HXT+. Here is a link to that model for full specifications:. (CLICK HERE) For DuroMax XP15000HXT+
DuroMax and ATS Transfer Switch Compatibility
Important Notice: DuroMax Generators & ATS Transfer Switch Compatibility. At this time, DuroMax generators are not compatible with Automatic Transfer Switch (ATS) systems. Our generators are designed for manual transfer switch operation and do not su
PUSH BUTTON START LIGHTS / OIL LIGHT
•When using electric Start the start button will flash green. • Unit will attempt to run 5 startup sequences and flash. •When the unit is started the Start Button will remain Solid Green as depicted. •If the Start Button is Solid Green, the Unit has
Generators that are equipped with a Floating Neutral
The following list of generator model numbers are equipped with a FLOATING NEUTRAL
Generators that are equipped with a Bonded Neutral
The following list of generator model numbers are equipped with a BONDED NEUTRAL