The generators that run on propane are known as best propane generators. They may be single fuel or bi and tri-fuel. When they are single fuel, they are fuelled by propane only.
When bi-fuel they may run on propane and gasoline or propane and diesel. When tri-fuel, they may run on propane, diesel and gasoline. Propane is a hydrocarbon with 3 carbon and 8 hydrogen atoms (C3H8) in its molecule. Water boils at 100°C and turns into steam. While propane boils at -42°C to become vapour. Propane is called Liquefied Petroleum Gas(LPG) because it is pressurized into a gas cylinder. It turns back into vapour when the pressure is released. Thus, the mechanism that facilitated its use is in the extraction from the cylinder in which it is supplied. Most applications and appliances such as water heaters, generators, cookers use vapour.
In its natural state, it is colourless, odourless and looks like water. Thus, for safety, a smell or an odorant is added to the gas so that a gas leak could be detected. This gas is extremely flammable. In the event of a leak ensure there are no flames or sparks and static electricity in the vicinity, and also allow thorough ventilation. Propane is heavier than air thus sinks to the floor, ensure a proper dispersal of the leak by opening all windows and doors.
Why is Propane used as a fuel?
Propane burns readily with oxygen and has a high energy content. It burns at 1980°C with a blue flame. This means it also burns clean and completely leaving behind only carbon dioxide, water and heat. The heat powers the internal combustion engine. As the engine turns the generator produces electricity.There is 25MJ (Mega-Joules) of energy in one litre of propane. The base unit is Joule it is the unit of work. And energy is required to do work. A Mega-Joule is a million times a joule. Gas consumption is expressed in Mega-Joules per hour (MJ/hr). This translates to how much gas consumed or work (in MJ) was done in an hour (in this case, turning the engine in RPM).25MJ per litre converts to 6.9kWh. A kWh equals the amount of energy required to run a 1000-watt appliance for an hour. This means, on 6.9kWh you can run this appliance for 6.9 hours on one litre of propane. A twenty-pound tank contains 9.0718litres of propane. This means you can achieve a runtime of approximately 9 hours per tank.
How does a propane engine produce electricity?
There are two types of fuel injection systems for propane – liquid and vapour. In both the types, propane is stored in a tank in the liquid state. In vapour injection systems the propane travels through a hose into the engine. Here the LPG is converted into vapour via a regulator. While in the liquid injection system the liquid does not vaporise till it reaches the fuel injector. This allows for a more precise fuel delivery which improves fuel efficiency and engine performance.
Propane generators basically work same as the others only with slight modifications in the carburettor or the engine. The other difference is instead of a fuel tank that is filled with gasoline or diesel apropane tank is attached via a hose. The rest of the assembly works exactly like the other internal combustion engines. As the engine turns at 3600 RPM, electricity is produced.
How efficient are best propane generators?
The general review is that propane is the cleanest, gasoline is the most convenient and diesel is the most powerful. The consumption of propane is 3.44 GPH (gallon per hour) while gasoline is 0.75 GPH and diesel is 2.9 GPH. These figures mean that you will burn more propane than the other two fuels to produce the same amount of electricity. But the pros of using propane are many.
Such as propane has a high-octane rating than gasoline, i.e., 104 – 112 compared to the 87 – 92 for gasoline. This high-octane rating also makes for higher horsepower. It is minimal maintenance due to low carbon and contamination characteristics, improving engine life. As the air and propane mix entering the combustion chamber is gaseous there is no need for an enriched fuel mix as in liquid fuels. This also reduces the cold start problem.
Propane is C3H8 this means when it burns in oxygen it releases only carbon dioxide and water. This makes it a clean fuel that is safe for the environment and public health. Lastly, it offers energy security as it is found in abundance and in easy supply to use as tanks. Due to an excellent infrastructure, tanks can be refilled or exchanged at a depot at affordable prices. They have a long shelf life this means you can store them.
How quiet best Propane generators are ?
It is not the fuel type that makes the generator quiet but the inverters have a compact design, use a smaller engine and an acoustic cabinet that reduces noise levels. The acoustic cabinet or body-casing is insulated with noise attenuating materials that absorb it. Inverters ensure stable power at 300 sine waves per engine rotation. The three-phase AC power is converted into DC which is inverted into 120V at 60 Hz of AC power. This power has minimum total harmonic distortion that makes it perfect for your sensitive electronics with microprocessors in them.
Top 10 Best Propane Generators in 2020
|BEST PROPANE GENERATORS IN 2019|
|2. Pulsar Products PG10000B16|
|3. DuroMax XP4850EH|
|4. Champion 3800-Watt Dual Fuel RV Ready|
|5. Champion 3400-Watt Dual Fuel RV Ready|
|6. Sportsman GEN4000LP|
|7. PowerMate 6958 DF7500E|
|8. Sportsm Smarter Tools ST-GP7500DEB|
|9 . Generac 6000|
|10. PowerMate PM0133250|
DuroMax are branded generators produced by DuroPower. It is a privately-owned company, Dexin International Inc., incorporated in 1992. DuroMax offers power, versatility, huge savings and lifelong service, all in one package.
Design and Build
This workhorse from DuroMax runs on a 457 cc OHV, 18 HP engine that runs on gasoline and propane. It revs up with an electric start and has a recoil start that facilitates start-up in the event of a flat battery. The Beast has a runtime of 10 hours at 50 percent load on an 8.3-gallon tank of gasoline. On a full propane tank, it gives a runtime of 20 hours at 50 percent load.
The panel has a low-oil warning light and a voltmeter. It also has individual circuit breakers to prevent overload and keep the electronics, safe.
There are 5 outlets on the panel – two 120V-20A Standard, one 120/240V-50A heavy duty outlet, one 120/240V-30A Twist Lock and one 120V-30A Twist Lock.
It is quiet at 72 dBA from 23 feet. There are a noise reduction muffler and a spark arrestor. It has a heavy-duty steel frame standing on four-point isolated mounts. These absorb vibrations and make for a quiet operation. The unit is portable due to its solid-filled, never-flat rubber tires. There is a high leverage handle for transport over any terrain. It is EPA and CARB compliant.
The XP12000EH is a dual fuel generator that pumps over 12,000 watts of power. You will not only stay powered through a storm but also be able to run many appliances simultaneously. It is also perfect for jobsites, outdoors and recreation. It is a perfect home backup solution as it is dual fuel – propane and gasoline. Using propane doubles the life of the unit due to clean burning that means minimal maintenance.
The DuroMax offers 9500 running watts and a peak power of 12000 watts. It’s called the BEAST because it can run up to 20 hours on propane.
All DuroMaxgensets come with a 3-year warranty, a 12V battery for the electric start, a wheel kit, a toolkit and an owner’s manual.
- Excellent runtime
- Excellent power output
- Dual fuel technology allows generator to be run on propane or gas
- Low oil shut-off protects engine. Quiet muffler reduces engine nois
- Not parallel ready
Why it is the best of the lot
This generator runs on a clean fuel with a high-octane rating. It also has low carbon and no contaminants thus the engine maintenance is low too. It is dual fuel, thus dependable as the propane cylinders are easily available. This generator is loaded with safety features such as a voltage regulator, low oil shutoff indicator, etc
The Pulsar is a powerful candidate for your power needs. The cutting-edge technology of this hybrid is an outstanding acquisition for anyone’s power needs. The dual fuel gives you a double security of using gasoline and propane which are easily available. With the added benefit that propane can be stockpiled and burns clean.
Design and Build
This generator has a 420cc, 15 HP OHV engine that starts with an electric push start and a recoil back-up. The battery for the electric start is included. The panel has six outlets – four 120V outlets, one 120V/240V twist-lock outlet and one 120/240V-50A RV outlet. It has a tubular steel frame with a black powder coating, the rest of it blue. The entire rig is mounted on solid rubber tires that never puncture. There is a fold-down handle that locks when raised.
Due to its patented Switch and Go Technology you can flip a switch to go from gasoline to propane and vice versa. This makes this a dependable genset which is ideal for home use, outdoor activities and jobsites.
To get an idea of the total wattage required by you simply add the running watts of everything to be powered simultaneously. Then select the highest running watts and add its starting watts to the previous total. This total is the total wattage you need from your genset.
As the Pulsar PG10000B16 offers 10,000 watts of peak and 8000 watts of rated power on gasoline. The genset gives 9000 watts of peak power and 7000 watts of rated power on a 20-pound LPG tank.
The hour meter helps schedule the maintenance to keep the unit is a working condition for a long time. There is a circuit breaker that automatically shuts off in the event of an overload. The unit can be restored to working condition by pressing the individual AC breaker with each outlet.
- Reliable engine
- Dual fuel advantage
- Fuel efficiency
- Switch and go technology
- Four 120V, one 120V/240V twist-lock, & one 120/240V 50A RV Receptacles
- Could be parallel ready
- Could be quieter
The PowerMate portable generators are designed, manufactured and tested to highest industry standards. These generators are comparable to the best in the industry, just select the model according to your needs.
Design and Build
The 420-cc OHV engine with a 12V button start and recoil system comes with a low-oil shutdown. This feature prolongs the engine life by preventing damage. The dual fuel feature makes it reliable and durable. The 7-gallon gasoline tank with a fuel gauge offers runtime of 10 hours at 50 percent load. You can connect a 20 or 30-pound tank to powerup for 5.3 – 8 hours at 50% load.
There is a fuel selector dial to switch between fuels. It also provides an easy access to LPG connection.
The automatic voltage regulator protects the electronics from voltage fluctuations and swings. The PowerMate maximizes your power options with four outlets – two NEMA 5-20R – GFCI, one NEMA L5-30R and one NEMA L14-30R. There is a digital multimeter that tracks the maintenance schedule.
The unit is 200 pounds in weight. It is 46.6 inches in length, 27.5 inches in width and 24.8 inches in height. There is a fold-down locking handle with never-flat tires on an ergonomically designed frame for maximum portability.
The PowerMate 6958 DF7500E is graded under emergency gensets but can power anything. On propane, the performance drops by approximately 10% with 6750 running watts and 8500 surge watts. It can simultaneously power appliances, tools and devices with its dual fuel, portable power anywhere and anytime.
The PowerMate has a surge power of 9375 watts and running power of 7500 watts on gasoline.
There are a fuel gauge and an hour meter. The unit has a 2-year consumer warranty and one-year commercial warranty.
- Dual fuel
- Hour meter
- Low oil shutdown
- Fuel gauge
- Not CARB compliant
- There is no idle control
- No voltmeter
DuroPower makes the DuroMax generators. It is a California based company that brings you these rugged dependable generators.
Design and Build
The DuroMax XP4850EH has a 210 cc 7 HP 4-stroke engine. The genset features an electric start backed up with a recoil start. A convenience, in case it is a frigid day or the battery as drained. There has a full panel with oil level warning light with automatic shutdown and a key start-switch. There are four outlets – two 120V-20A 3-Prong Outlets and one 120V/240V-30A T wist Lock outlet (NEMA L14-30 3 Pole 4 Wire). It also features one 12V DC output, a circuit breaker and a large voltmeter.
For a genset with nearly 5000 watts of surge capacity, it has a small footprint. without the wheel kit, it is only 23.2 inches in length, 17 inches high and 17 inches wide. There are solid, never-flat rubber tires. The high leverage handles turn upwards and make it easy to move like a wheelbarrow over on all surfaces. There is an over-sized noise reducing muffler cum spark arrestor that is mandatory on camping areas and job sites for safety. It produces a 69 dBA of noise at 7 meters, thus quiet as a human conversation. It is a simple out-of-the-box operation with a heavy-duty frame with four point fully isolated motor mounts for smooth quiet operation
This XP4850EH produces power for 20 hours on a 20-pound tank of propane and for 8 hours on a 4-gallon fuel tank of gasoline at 50% load. With such a power-producing capacity and noise reduction features this is a perfect genset for outdoors and home. A flip switch brings you the dual fuel advantage anywhere.
The XP4850EH delivers 4850 surge watts and 3850 running watts of power. Though a cleaner fuel, running on propane reduces the output by 10 percent.
All DuroMax generators come with a three-year warranty. Low oil indicator, a muffler to dampen noise and voltmeter. It is EPA and CARB compliant.
- Duel fuel thus dependable
- Compact with a small footprint
- Electric start
- A bit loud when the load is heavy
- Could be made parallel ready
Champion are the market leaders in power generation equipment. They have years of experience in providing clean, durable and dependable power. Their products set standards of performance and customer service in the industry.
Design and Build
The unit comes with a touch start and the battery is included. The push- button electric start has an internal battery that charges while the genset is producing electricity. There is a volt guard that protects against power fluctuations and surges. It comes with a Cold Start Technology that optimizes the genset to rev up on frigid days.
The fuel selector allows you to switch between propane and gasoline. There is a propane inlet to attach the hose and a 3.4-gallon gasoline tank. The runtime on a full fuel tank is 8 hours with a noise level of 68 dBA from 23 feet.
The intelligauge monitors the volts, Hertz and hours. This allows for easy monitoring of power output and scheduling maintenance. The unit is easily manoeuvrable as it has foldable handles and never-flat rubber tires. It is EPA and CARB compliant.
The Champion 76533 is not only a terrific addition to your recreational vehicle. It is also a cost-effective solution to power outage and emergencies.
The Champion 76533 is a dual fuel genset that offers ready portable running power of 3800 watts and 4750 starting watts. It is perfect for powering your recreational vehicle or four-wheel drive. It is also perfect for off-the-grid living.
The propane hose and engine oil are included. All Champions come with a three-year warranty and a lifetime technical support.
- Clean power due to propane
- Economical and low maintenance
- RV ready
- Cannot double output via parallel connection
This is a dual fuel generator by an industry leader with many years of experience and proven expertise. This out of the box genset instantly provides you with 3400 watts of portable power.
Design and Build
This gasoline and propane fuelled generator holds 0.6 quarts of 10W-30 engine oil. It has a low oil shutdown indicator that shuts down the engine when the oil heats up or level is low. The engine has a convenient electric start with a three-position ignition switch. The quick touch panel gives you control at one spot. The unit has 4 outlets – one 120V-30A RV, two 120V-20A household outlets and one 12V DC outlet with a dual USB adapter.
The Economy mode of the inverter determines how much power is needed in real-time. It revs down when the load is low and revs up when demand rises. This way it saves fuel and prolongs the engine life.
This model is also parallel ready, simply attach two Champions to increase power.The unit is fully assembled with a carrying and fold away handle. The tubular steel frame is set on never-flat tires for easy manoeuvrability and storage.
At 59 dBA the unit is ultra-quiet making it perfect for camping, tailgating and other outdoor activities. While it can also serve as a standby at home in the event of an emergency or blackout. Due to the built-in inverter, this unit can offer clean power with less than 3% total harmonic distortion(THD) and a pure sine wave of power. Since propane has a long and stable shelf life you do not need to worry about having gasoline on hand all the time.
The Champion can offer you surge 3400 watts and 3100 running watts for 7.4 hours over a full tank of gasoline. On propane, it offers a surge power of 3060 watts and a running power of 2790 watt. The unit will run for 14 hours on a 20-pound tank at 25% load. There is a Safety Fuel Selector Switch that ensures easy and safe operation on either fuel.
The Champion is accompanied with a battery, propane hose, engine oil and a 3-year warranty and a lifetime technical support.
- Dual fuel
- Safety fuel selector
- Parallel ready
- RV ready
- Ultra-Quiet Operation 59 dBA is perfect for RVs, tailgating
- Clean Power for Sensitive Electronics
- The unit is heavy
This genset comes from Buffalo Tools, who are importers of quality tools industrial and home use. They have been selling household items and power tools since 1964. The Sportsman is one of the power equipment they market.
Design and Build
The Sportsman GEN4000LP is equipped with a 7 HP 4-stroke OHV engine that starts with a recoil start.There is an automatic low oil shut down to protect the engine in any eventuality. The engine should be lubricated with the 10W-30 oil before the first use. This ensures a quiet and smooth functioning of the engine at less than 68 dBA. The engine oil tank capacity is 20 fluid ounces.
There is an automatic voltage regulator that shuts down the engine to protect the circuitry from power surges. The engine runtime is 10 hours at 50 percent load on a 20-pound tank of LPG. The panel has 3 outlets – 2 simple 5-20R, that combine up to the 20 amperes at 120 volts. There is a DC outlet with an output of 10 amperes for battery charging. The Sportsman is 23 inches in length, 17.5 inches in height and 17 inches in width. It weighs 88 pounds.With its cuboid design, it is easy to store and move.
It produces 4000 watts of surge power and 3250 watts of running watts at 60 Hertz.
The spark plug, a dust cover, a gas gauge and a gas hose are included. The unit comes with a one-year limited warranty.
- Propane fuelled
- Runtime 10 hours on 20 lb
- Quiet at 68 dBA
- Overload protection for each outlet
- An automatic voltage regulator
- Low oil shut down
- Recoil start, circuit protection, auto fuel shut-off safety valve, Auto low oil shut down
- No battery start
- Heavy at 88 pounds and not mobility kit
- No holder for LPG tank
Smarter Tools design, make and distribute power tools, generators, pneumatic tools and welders. This quality genset brings you 20 years of dependability and durability associated with this brand.
Design and Build
The ST-GP7500DEB is a dual fuel generator that runs on gasoline and propane. It has 4-stroke OHV engine with a single cylinder. It is an air-cooled engine this means it is lightweight and simpler to maintain. It has 398-cc, 15 HP engine which is powerful yet meets the EPA and CARB standards. The noise level is 73 dBA at 23 meters.
It starts with a pull/recoil cord. The panel in the front has easy-to-read indicators and many outlets. It is laden with safety features such as an automatic voltage regulator, a fuel gauge, low oilshutdown and muffler. The voltage regulator guards against overload and low oil shut down closes the engine when the oil level is low. This protects the engine from overheating and damage, prolonging the life of the generator. There are seven OSHA and GFCI certified outlets – four 120V-20A outlets, one 120V-30A twist lock AC (L5-30R), one 120/240V (NEMA L14-30R) 30A twist lock, and one 12V-8A DC.
There is a digital hour, volt and Hertz meter which keeps track of the runtime. This helps scheduled maintenance and the voltmeter assures correct voltage supply for your appliances.The unit is mounted on a tubular steel frame with 10-inch, no-flat tires and handle. This makes it highly portable, just wheel it like a barrow anywhere you need power.
The Smarter Tools ST-GP7500DEB powers the most demanding appliances with the running power of 6500 watts. Power yourair-conditioner, refrigerator, gaming console, etc., simultaneously. As it is portable with wheels it is also perfect for your outdoor adventures and onsite jobs.
The Smarter Tools ST-GP7500DEB offers 6500 continuous watts and 7500 surge watts. It has a runtime of 9 hours at 50 percent load on a 6.6 gallon of gasoline and 8 hours on a 20-pound cylinder.
The ST-GP7500DEB package includes an instruction manual, a wheel kit, a propane hose, an engine oil bottle, a battery charging cable and a spark plug tool. There is a two-year warranty.
- 7500 surge and 6500 running watts make it powerful
- Highly portable due to wheel kit
- Dual fuel
- Electric start with included 12V 17Ah Battery
- It could be made quieter using noise attenuation technology
- No auto idle control
- No built-in inverter
9 . Generac 6001
Generac has been offering affordable power solutions for 50 years. The Generac 6000 is a portable propane generator with an incorporated tank holder. The dolly-style handle with a low grab bar makes it a unique stable design.
Design and Build
The Generac 6000 comes with a 212 cc OHV engine. The engine has a low oil sensor for protecting the engine. It is lubricated by the splash method. The engine has a brushless alternator that runs at 3600 RPM producing 120/240 volts in a single phase at 60 Hertz. Generac has not measured the noise level produced by this generator. Thus, we cannot say if it is National Park Services compliant.
There are three outlets – two (NEMA 5-20R), Wall Type outlets and one NEMA L14-20Routlet. The outlets are covered for safety from the elements prolonging the generators life. The mobility kit has dolly style handles and low grab bar in the front of the unit for easy manoeuvrability.
As the propane tank sits out of the way this is a perfect generator for the outdoors and jobsites. It is mounted on a wheelbarrow like mobility kit made of tubular steel powder coated as an anti-rust treatment. This integrated propane tank holder can carry 20 to 30-pound cylinders. This extends the runtime, flexibility and convenience.
The Generac offers 3250 running watts and 3750 surge watts. A 20-pound tank can give a runtime up to 9 hours at 50 percent capacity.
The unit has covered outlets, circuit breakers, wheel kit and owner’s manual. The unit comes with a quart of oil and 2-year warranty.
- Built-in tank holder improve safety and mobility
- Low oil shutdown
- Cast iron sleeve for protection and noise reduction
- Not CARB compliant
- Not automatic voltage regulation
- No fuel gauge
- No idle control
- No voltage meter
10. PowerMate PM0133250
This is a propane generator by PowerMate. It ensures portable electric power everywhere, anywhere at any time.
Design and Build
The unit has a powerful 208 cc OHV engine provides consistent power for multiple and simultaneous applications. It revs up with a manual or a recoil startup and has a low oil shutdown. There is an RV, L5-30P to TT30R adapter if you are using it on an RV or camper. There are two outlets – one 120V 5-20R Duplex and one 120V L5-30R. All the outlet covers to keep the debris out.
The unit is built such that it cradles the tank. The mobility kit accepts a 20 or 30-pound propane tank. It is 22.7 inches in length, 28 inches in breadth and 38 inches in height. And the dry weight is 117.5 pounds. The weight and dimensions lower the centre of gravity offering it stability. The never flat tires allow for easy transportation.
The PM0133250 supports all activities – industrial and recreational – that need power. It is also a perfect power solution during natural disasters and blackouts. As there is no fear of spillage, propane has an indefinite shelf life. This makes it easy to store extra cylinders without any deterioration making them perfect as emergency backups.
The PowerMate offers a running power of 3250 watts and maximum power of 4050 watts. The generator has a runtime of 11.8 hours on a 20-pound LPG tank at 50 percent load.
There is a digital multimeter that records the runtime and helps schedule maintenance. There is an automatic voltage regulator to protect against power surges. The accessories include an RV adaptor, engine oil and toolkit. The unit comes with an owner’s manual and 2-year warranty.
- Mobility kit accept the LPG tank
- Covered outlets to protect outlets
- Runs clean and burns clean thus minimal maintenance
- No spillage of propane
- Indefinite shelf life
- RV ready
- Not parallel ready
- No electric start