Best Portable Quietest Generator
Power generators are used when electric power is needed and mains power is not present - when camping, tailgating, in emergencies, and similar.
One of the very important features of power generators is - noise level. A loud power generator can be very annoying, especially when working for a longer period of time. On the other hand, a quiet power generator is a robust and reliable, but almost silent unit, giving peace of mind in more ways than just one ...
Updated: December 5, 2021.
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Intro to the Best Portable Quietest Generators
In order to produce electricity, power generators use internal combustion engines to convert chemical energy (fuel) into mechanical energy, which is converted into electric energy using electric generators.
When looking for 'the quietest generator', there are a few things to look for, not just noise given in decibels.
Common Generator vs. Inverter Generator
Common generators feature an internal combustion engine that spins at the required speed in order to provide energy of the required frequency - typically 3600 rpm for 60Hz and 3000 rpm for 50Hz. This also means that the engines operate at this speed even if the electric load is low or even zero.
On the other hand, inverter generators use an electronic controller (power inverter) that converts electricity provided by an electric generator (regardless of its actual frequency and even voltage) into the required electricity (voltage, frequency), with very low Total Harmonic Distortions (THD).
A good inverter generator should have THD below 3% and is able to power even sensitive electronics like TVs, media centers, laptops, etc. Also, when the load is low or even zero, the engine is idle, burning very little fuel.
Output Power - Starting Power vs Running Watts
Running Watts are output power that the power generator can provide continuously, while Starting Watts are output power that the power generator can provide for a relatively short period of time and is usually required when tools, devices, and appliances with electric motors start and when they draw more current/power than normal.
The stronger the internal combustion engine is, the noisier the power generator. The quietest power generators are small and compact power generators in the 1000W range, but due to their output power, they are able to power a limited number of devices and appliances.
Thus, when making the list of the quietest power generators, we opt for generators that are able to provide at least 2000 starting watts, preferably more.
A 2000 watt generator is a much more capable unit than 1000 watt generator, often coming with features that are not available on the weaker units.
In order to keep the noise levels low, power generators use specially designed mufflers and enclosed body that holds all the parts and additionally decrease the noise.
Gas-only or Dual-Fuel Power Generators
Having a dual-fuel power generator helps the user in finding suitable fuel in emergencies since such power generators run on both gas and LPG (Liquid Propane Gas).
Also, LPG can be easily stored in tanks for long periods of time, unlike gas which quality decreases over time.
The choice of fuel doesn't increase or decrease the noise levels. When run on propane, exhaust fumes are somewhat cleaner, but nonetheless, they contain Carbon Monoxide - regardless of the fuel choice, power generators must run outside and NEVER indoors, regardless of "how good" the ventilation is!
Parallel Ready Option
If more power is required, one can use two power generators connected in parallel or one can use a larger power generator.
Personally, larger power generators are usually open-frame units without inverter technology - they are significantly noisier and have more Total Harmonic Distortions (THD) than two smaller units.
Two smaller power generators usually cost more than one larger unit, but they are also more resilient power source - if something happens to one of them, another unit may provide power for at least some of the tools and appliances.
Quietest power generators usually feature a pair of 120V 5-20R receptacles, one DC 12V receptacle and sometimes one or two DC 5V USB charging ports.
Larger units may also feature AC L5-20R and/or TT-30R receptacles, allowing them to provide power to the larger loads, including RVs for example.
Price of the Generator
The prices of 2000W generators vary significantly, so be sure to go for the unit that best suits your needs and requirements. In our selection, we ignored the price of the unit completely - such units are excellent, sturdy, and durable units that are very cost-effective when used regularly for camping, tailgating, and similar activities.
The following comparison chart lists some of the best and the quietest power generators with their most important features, ordered alphabetically.
|6.5h @50%||52 dB @25%
58 dB @50%
AC: 120V 20A 5-20R, 120V 30A L5-30R; DC: 12V 8.3A, USB 5V
|Champion 2000W Model #100402||
|11h @25%||53 dB @25%||
AC: 20A 120V 5-20R Duplex; DC: 12V 8A
|Champion 2000W Model #100692||
|11.5h @25%||53 dB @25%||
AC: 20A 120V 5-20R Duplex; DC: 12V
|11h @25%||50 dB @25%
56 dB @75%
60 dB @100%
AC: 20A 120V 5-20R Duplex; DC: 12V 5A
AC: 120V 20A Duplex 5-20R, 120V 30A L5-30R; DC: two USB ports (5V/2.1A, 5V/1A)
|8h @25%||50 dB @25%||
AC: 20A 120V Duplex; DC: 12V
|48 dB @25%
57 dB @100%
AC: 20A 120V Duplex; DC: 12V 100W (8.3 Amps)
|20h @25%||50 dB @25%||
AC: 120V 20A Duplex, 120V 30A L5-30R
|51 dB @25%||
AC: 2x NEMA 5-20R; DC: 12V (8.3A), 2x USB 5V (1A, 2.1A)
|10.5h @25%||51 dB @25%||
AC: 15A 120V NEMA 5-20R Duplex; DC: 12V, USB 5V (2.1A, 1A)
|10h @25%||52 dB @25%||
AC: 20A 120V Duplex; DC: 12V, 2x USB 5V
|18h @25%||52 dB @25%||
AC: 120V 20A 5-20R Duplex, 120V 30A TT-30R; 2x USB 5.0V (2.1, 1.0 A)
|10.5h @25%||51.5 dB @25%||
AC: 120V Duplex; DC: 12V 8A
|8.6h @25%||53 dB @25%||
AC: 120V Duplex; DC: 12V 8A
Note: Amazon affiliate links ('Model' Column) open in the new windows, feel free to check them for the most up-to-date offers and prices.
As one can see, very popular and anything but cheap Honda EU2000i is in the chart, but not on our review list - this unit has been replaced by the newer Honda EU2200i model, and although it may be found at stores at affordable prices, it is not offered any more by Honda.
Honda EU2200i is obviously on our list, very close to the top.
If You are in a position to buy new EU2000i at a very affordable price, go for it, if not, check the newer Honda EU2200i inverter generator.
And here is our list of the best quietest power generators - You may agree or not with us with this list, so before buying any of these units, be sure to choose according to your own needs and preferences (this cannot be emphasized enough!)
1. Honda EU3000IS Super Quiet Portable Inverter Generator
Honda EU3000IS is very impressive unit - its physical dimensions are (L x W x H) 25.9 x 17.6 x 22.0 inches (~65.8 x 44.7 x 55.9 cm) and its dry weight is 131 pounds (~59.4 kg). The unit comes with two built-in handles, allowing two adults to carry the unit to (very) short distances - this is anything but a lightweight unit.
The unit features 3.4 gallons (~12.9 liters) and Honda GX200 196 cc engine, which is able to provide 3000 Starting Watts and 2800 Running Watts.
When operated at 25% load (700W), Honda EU3000IS is able to operate 20h(!) on a single full fuel tank, with noise levels of only 50 dB (@25%).
If the unit is pushed to the limit (2800 watts), it can operate up to 7.1 hours with noise levels of 57 dB (@100%, 2800W).
Honda EU3000IS features ports: 120V 20A AC Duplex and 120V 30A AC L5-30R ports.
Other features include advanced inverter technology (low THD%), Oil Alert protection (automatic engine off), overload protection, parallel ready ports, recoil, and electric start, etc.
Also, Honda EU3000IS comes with a 3-year residential and commercial warranty.
Any cons except the weight? Yes, Honda EU3000IS is a rather expensive inverter generator, but what You pay is what You get - a strong and very quiet, reliable power inverter generator.
For more reviews and recommendations, feel free to check Honda EU3000IS Super Quiet Portable Inverter Generator Amazon link (link opens in the new window).
2. Generac 7127 iQ3500-3500 Watt Portable Inverter Generator
Nonetheless, Generac 7127 iQ3500 power generator is a surprisingly quiet unit.
Generac 7127 iQ3500 is powered by a 212cc OHV engine, providing 3000 Running Watts and 3500 Starting Watts and with 2.6 gallons tank, Generac iQ3500 ensures runtime of 8.9h @50% load and 14.1h @25% load, using Eco Mode. The engine features both manual and electric start.
Generac 7127 iQ3500 inverter generator provides output power with very low THD (<3%) making it safe for powering sensitive electronics and appliances.
For users requiring even more power, it is good to know that the Generac 7127 iQ3500 is a Parallel Ready power generator, but it requires an additional Parallel Ready connection kit.
Power output ports include 120V 20A AC Duplex 5-20R, 120V 30A AC L5-30R, and two USB ports (5V/2.1A, 5V/1A).
Safety features include overload protection and low-oil automatic engine shut-off. Also, it comes with Hour Meter, Fuel Gauge, Wattage Meter, and the Run-Time Remaining displayed on its control panel.
Physical dimensions of the unit are 23.7 x 18 x 21.7 inches (60.2 x 45.7 x 55.1 cm) and it weighs 109 pounds (49.4 kg) dry.
Generac 7127 iQ3500 comes with a 3-year residential and commercial warranty.
If You are looking for an excellent, gas-only powered 3000W, very quiet power generator and the Honda EU3000IS is over the budget, consider this unit.
For more reviews and recommendations, feel free to check the Generac 7127 iQ3500-3500 Watt Portable Inverter Generator Amazon link (link opens in the new window).
3. Honda EU2200i Super Quiet Portable Inverter Generator
Honda EU2200i is powered by Honda GXR120 121cc internal combustion engine, offering 2200 Starting Watts and 1800 Running Watts.
Physical dimensions of the unit are (L x W x H) 20.0 x 11.4 x 16.7 inches (~50.8 x 29 x 42.5 cm) and its dry weight is 46.5 pounds (~21.1 kg) - Honda EU2200i is much lighter than Honda EU3000i generator.
Honda EU2200i features 0.95 gallons (~3.6 liters) fuel tank, ensuring runtime of 3.2 hours @100% load and 8.1 hours @25% load.
Also, this is a very quiet power generator with noise levels of 48 dB @25% load (450W) and 57 dB @100% load (1800W).
Honda EU2200 power generator is manufactured in several versions, with the most popular model (EU2200i) featuring 120V 20A AC Duplex ports and 12V (8.3 Amps, 100W) DC port.
Other features of Honda EU2200i include parallel ready design, fuel shutoff, Oil Alert protection, recoil manual start, various safety features, etc.
Also, Honda EU2200i comes with a 3-year residential and commercial warranty.
Any cons of Honda EU2200i? Yes, again it is the price - Honda EU2200i is a rather expensive power generator, but nonetheless, it is still one of the most popular units in its class due to its robust, compact, and reliable design.
For more reviews and recommendations, feel free to check Honda EU2200i Super Quiet Portable Inverter Generator Amazon link (link opens in the new window).
4. Westinghouse iGen4500 Super Quiet Portable Inverter Generator
Westinghouse iGen4500 is a portable generator, but it is not small and lightweight - its physical dimensions are (L x W x H) 24.5 x 17.5 x 20 inches (~62.2 x 44.5 x 50.8 cm) and it weighs 104.7 pounds (~47.4 kg) without fuel.
Due to the dimensions, Westinghouse iGen4500 comes with a pair of carrying handles, allowing at least two adults to carry the unit around.
Also, Westinghouse iGen4500 features a pair of transport wheels, allowing one adult to easily move the unit around if required.
The unit is powered by a 224cc OHV engine, featuring manual recoil and electric start and it even comes with a remote fob.
Westinghouse iGen4500 features 3700 Running Watts and 4500 Surge Watts, with THD levels ≤3%.
Fuel tank capacity is 3.4 gallons (~12.8 liters) providing the runtime of 18 hours @25% (925 watts) load.
Output ports include 120V 20A AC 5-20R Duplex, 120V 30A AC TT-30R, and 2x USB (2.1A, 1A) 5.0 volts - Westinghouse iGen4500 is RV ready power generator and is able to power almost all most popular loads, including smaller RV AC units combined with other loads.
Also, Westinghouse iGen4500 features a so-called LED Data Center showing fuel level, power output, remaining run time, current-voltage output, and the unit's lifetime hours.
Unit is parallel ready and comes with a set of safety features like most power generators, including status LEDs (Output Ready, Low Oil, Overload), automatic engine shutoff, etc.
Westinghouse iGen4500 comes with a 3-year limited residential warranty and a 1-year commercial warranty.
For more reviews and recommendations, feel free to check Westinghouse iGen4500 Super Quiet Portable Inverter Generator Amazon link (link opens in the new window).
5. WEN 56235i Super Quiet Portable Inverter Generator
Fuel tank capacity is 1.06 gallons (4 liters), providing the runtime of 10.5 hours at 25% (450 watts) and 5.7 hours at 50% (900 watts).
WEN 56235i is another very quiet power generator, generating only 51 dB at 25% load (450W).
Its physical dimensions are 17.3 x 11.5 x 17.7 inches (~44 x 29.2 x 45 cm) and it weighs 39 pounds (17.7 kg) - unit is very portable and can be carried around via its built-in handle.
WEN 56235i features 15A 120V NEMA 5-20R Duplex ports, 12V 8.3A DC port, and two USB 5.0V (2.1/1 A) ports.
WEN 56235i also comes with a fuel shutoff feature, low oil shutdown, overload warning, it is a parallel ready generator, very low THD (≤1.2%), etc.
The unit features a manual recoil engine start and it comes with a 2-year warranty.
Compared with the previous models, WEN 56235i is just a little bit noisier, but it is much cheaper. Also, it has a shorter warranty period.
For more reviews and recommendations, feel free to check WEN 56235i Super Quiet 2350-Watt Portable Inverter Generator Amazon link (link opens in the new window).
6. Westinghouse iGen2600 Super Quiet Portable Inverter Generator
Fuel tank capacity is 1 gallon (~3.7 liters), offering the runtime of 10 hours @25% (550 watts) and noise levels of 52 dB (at 25%, 550 watts).
Physical dimensions of the unit are (L x W x H) 20 x 11.6 x 18.1 inches (~51 x 29.5 x 46 cm) and it weighs 48 pounds (~22 kg).
Power receptacles include 20A 120V AC NEMA 5-20R, 12V 8A DC port and 2x USB 5.0 volts ports.
Also, Westinghouse iGen2600 is a parallel ready inverter generator, featuring low THD (≤3%), status indicators (Low Oil, Output Ready, Overload), and a very interesting LED display providing the user with data like fuel level, power output, remaining run time, lifetime hours and voltage output.
Westinghouse iGen2600 comes with a 1-year limited commercial warranty.
For more reviews and recommendations, feel free to check Westinghouse iGen2600 Super Quiet Portable Inverter Generator Amazon link (link opens in the new window).
7. Yamaha EF2000iSv2 Portable Inverter Generator
Physical dimensions of the unit are 19.3 x 11.0 x 17.9 (~49 x 28 x 45.5 cm) and it weighs without fuel 44.1 pounds (~20 kg).
Fuel tank capacity is 1.1 gallons (~4.16 liters) which is enough for 10.5 hours of operation @25% load, during which the noise levels are ~51.5 dB (@25%, 400W). Some generators positioned higher are noisier than the Yamaha EF2000iSv2, but they are also stronger units.
Power outlets include 120V AC Duplex (max. 13.3/16.7 Amps @120V) and 12V 8A DC port.
Yamaha EF2000iSv2 comes with the full set of safety features, including status LEDs (Low Oil, AC Output, Overload), fuel shutoff (prevents stale fuel problems), electric overload breaker, etc.
Yamaha EF2000iSv2 is a parallel ready power generator and it comes with a 3-year limited warranty.
For more reviews and recommendations, feel free to check Yamaha EF2000iSv2 Portable Inverter Generator Amazon link (link opens in the new window).
8. A-iPower SUA2300i Portable Inverter Generator
Unit's physical dimensions are 22.0 x 13.9 x 20.8 inches (~55 x 35.5 x 53 cm) and it weighs 50.7 pounds (~23 kg) without fuel.
Fuel tank capacity is 1.1 gallons (~4.16 liters) offering a runtime of 6.5 hours at 50% load and 4 hours @100% load.
Noise levels depend on the load: 52 dB @25%, 58 dB @50%, and 68 db @75%.
Power outlets include one 120V 30A AC Locking (L5-30R), one 120V 20A AC (5-20R), one 12V 8.3A DC and one USB 5.0 volts charging port. Also, it comes with a 30 Amp RV adapter.
A-iPower SUA2300i features very low THD, allowing the unit to power sensitive devices like TVs, laptops, and similar.
Data Center displays the current status of the unit, including output power, remaining fuel, output volts, working hours, and output frequency.
A-iPower SUA2300i is a parallel ready unit, allowing the user to connect two units in parallel for larger output power.
A-iPower SUA2300i comes with a 3-year limited residential/commercial warranty.
For more reviews and recommendations, feel free to check A-iPower SUA2300i 2300 Watt Portable Inverter Generator Amazon link (link opens in the new window).
9. Yamaha EF2400iSHC Portable Inverter Generator
The physical dimensions of the unit are 20.8 x 16.5 x 18.2 inches (~52.8 x 42 x 46.3 cm) and it weighs 75 pounds (~34 kg) without fuel.
Yamaha EF2400iSHC comes with two built-in handles, allowing two adults to carry it.
Fuel capacity is 1.6 gallons (~6 liters) providing a runtime of 8.6 hours @25% load, with the noise levels of 53 dB @25% load (500 watts) and only 60 dB @100% load (2400 watts) - at full power, the engine speed is only 3400 rpm, leading to relatively low noise at higher power levels.
Yamaha EF2400iSHC features a 120V AC Duplex power outlet and one 12V 8A DC port - Yamaha EF2400iSHC doesn't feature USB charging ports.
The unit also comes with a set of features commonly found at power generators in this class, like fuel shutoff, so-called Oil Watch Warning system, and similar.
Yamaha EF2400iSHC features 3-year limited warranty.
For more reviews and recommendations, feel free to check Yamaha EF2400iSHC Portable Inverter Generator Amazon link (link opens in the new window).
10. Champion Power Equipment 100692 2000-Watt Portable Inverter Generator
Physical dimensions of the unit are (L x W x H) 17.3 x 11.5 x 17.7 inches (~44 x 29.2 x 45 cm) and it weighs only 39.5 pounds (~17.9 kg) with no fuel.
Tank capacity is 1.1 gallons (~4 liters), providing the runtime of 11.5 hours @25% load and 53 dB @25% load (425 watts).
Power outlets include 120V 20A AC 5-20R Duplex and one 12V DC port.
Champion 100692 is not RV ready, but it is a parallel ready power generator - the optional parallel kit features both a standard 30A RV outlet and a 120V 30A locking outlet.
Other important features include low-oil automatic shutoff, low THD (≤3%), Economy mode, CARB compliant, etc.
Champion 100692 comes with a 3-year limited warranty.
For more reviews and recommendations, feel free to check Champion Power Equipment 100692 2000-Watt Portable Inverter Generator Amazon link (link opens in the new window).
Quietest Power Generators Frequently Asked Questions (FAQ)
Here are some of the most common questions about the quietest power generators:
How many decibels is a quiet generator?
Personally, anything below 52-53 dB @25% power is quiet. However, with the increase in power, noise levels increase too.
That is why we have really tried to include noise levels at different power levels as well.
What does 50 dB sound like?
50 dB is the sound of a refrigerator or a quiet conversation.
Similarly, 70 dB is the sound of a typical vacuum cleaner or TV.
85 dB is city traffic, 100 dB is the noise of the motorcycle, 115 dB is a rock concert, etc.
Why are Honda, Yamaha, and similar generators so quiet?
Because they have special mufflers that greatly lower the noise and they have their generators fully enclosed, further decreasing the noise.
What is the quietest generator available?
The quietest power generator available is the one that is turned off :)
On a serious note, anything below 52-53 dB is quiet and especially around or below 50 dB.
But, if You need an even quieter source of power, check Power Stations - they feature built-in high-capacity lithium batteries and can be run even indoors.
Few Final Words
Noise levels are one of the most important features of modern portable inverter generators - noise can be rather annoying, especially if other people are present too, and the distance between the user and power generator cannot be increased.
However, when choosing the best quietest power generator for your needs, choose according to your own needs and requirements, taking into account noise levels, but also fuel type, dimensions, output power, receptacles, parallel ready, and other features commonly found on modern inverter power generators.
Note: again and again, since power generators release harmful gases and fumes, never operate them indoors, regardless of how good the ventilation system You have.
And whatever You do, stay safe - keep the Owner's Guide of your power generator close by and if required, check them for maintenance and other procedures...