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Gas vs Manual Lawn Mowers: Which Should You Buy?

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Choosing between a gas vs manual lawn mower depends on your yard size and physical effort tolerance. Both are push mowers designed for basic lawn maintenance. The PowerSmart uses a 144cc gas engine for power, while the LawnMaster relies on human effort with a manual reel. This guide compares their specs to help you decide which fits your needs.

Key differences

AspectPowerSmart 18-Inch 144cc Gas Push MowerLawnMaster 20-Inch Manual Push Reel Mower
Power SourceGas, 144cc 4-cycleManual reel
Cutting Width18 in20 in
Deck MaterialSteelnot listed
Cutting Height1.5-3.9 in, 5 positions1.3-2.6 in, 9 positions
Mowing FunctionSide dischargenot listed
Weight58.4 poundsnot listed

Which one should you choose?

Choose PowerSmart 18-Inch 144cc Gas Push Mower if

  • You have tall or thick grass that requires engine power to cut cleanly.
  • You prefer side discharge to keep your path clear of clippings.
  • You need a higher maximum cutting height for varied lawn conditions.

Choose LawnMaster 20-Inch Manual Push Reel Mower if

  • You want a zero-emission option that needs no gas or batteries.
  • You prefer a scissor-like cut that leaves grass blades healthy.
  • You want a wider 20-inch deck for covering more ground per pass.

Verdict: The PowerSmart gas mower is better for larger or tougher lawns where engine power and adjustable height matter. The LawnMaster manual reel mower suits small, flat lawns where you want a quiet, eco-friendly cut. Choose based on your grass type and physical preference.

Gas Engine vs Manual Push Mower

Power Source

Edge: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart EasyCut uses a 144cc 4-cycle gas engine with an auto choke and primer for starting. This provides consistent power without physical exertion. The LawnMaster LMRM2001 is a manual reel mower with a motorless design. It requires no gas or batteries, relying entirely on your pushing effort. This makes it environmentally friendly and quiet. You get zero emissions with the manual option, but you must supply the energy. The gas mower offers mechanical power for tougher conditions, while the manual mower offers simplicity and zero fuel costs.

Cutting Width

Edge: LawnMaster 20-Inch Manual Push Reel Mower

The LawnMaster features a 20-inch cutting width, which covers more ground per pass. This wider deck can reduce the time needed for larger, flat lawns. The PowerSmart has an 18-inch steel deck. The narrower width allows for tighter maneuvering around obstacles like flower beds and trees. Both are push mowers, so you control the speed. The two-inch difference in the LawnMaster’s deck may matter on open spaces, while the PowerSmart’s width suits tighter layouts. Your yard shape determines which width is more efficient for your routine.

Cutting Height Range

Edge: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart offers a cutting height range from 1.5 inches to 3.9 inches across five positions. This wider range handles varying grass types and conditions better, including taller or thicker grass. The LawnMaster provides nine positions between 1.3 inches and 2.6 inches. This range is ideal for shorter, manicured lawns but may struggle with overgrown grass. The manual reel cuts cleanly at lower heights, promoting a healthier lawn. If you need to cut higher grass, the gas engine’s power and height range give the PowerSmart a clear advantage.

Deck Material

Edge: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart EasyCut is built with a durable steel deck. Steel decks are known for longevity and resistance to impact damage, making them suitable for rough terrain. The LawnMaster also uses durable steel blades for its reel system. However, the deck material for the LawnMaster is not specified in the provided data. Steel construction generally ensures the mower withstands bumps and debris. The PowerSmart’s explicit steel deck offers a known durability factor. The manual mower’s steel blades ensure a clean cut, but the deck’s material remains undefined.

Mowing Function

Edge: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart is configured for side discharge, efficiently throwing grass clippings to the side. This helps you mow through tall, thick grass without clogging. It also has variations available with a bagger or mulch kit. The LawnMaster is a basic push reel mower with no specified discharge or collection system in the data. You will likely need to rake clippings separately or leave them as mulch. The gas mower’s side discharge feature offers more flexibility for managing clippings during heavy mowing sessions.

Maneuverability and Weight

Edge: LawnMaster 20-Inch Manual Push Reel Mower

The PowerSmart weighs 58.4 pounds and has 8-inch rear wheels and 7-inch front wheels. The weight provides stability, but you must push a heavier machine. The LawnMaster is lighter and has 10-inch front wheels. The larger front wheels may help with rolling over uneven terrain more easily. The manual mower’s lighter weight reduces physical strain on your arms and back. However, the gas mower’s engine power offsets the weight during mowing. The manual mower is easier to lift and store, offering better portability.

Which mower fits your yard best

Users with thick or tall grass

Our pick: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart 144cc gas engine provides consistent power to handle dense vegetation without manual strain. Its side discharge feature efficiently clears clippings, preventing clogs in thick grass. The 18-inch steel deck and robust build ensure durability during heavy-duty mowing tasks where manual effort would be insufficient.

Eco-conscious users with small lawns

Our pick: LawnMaster 20-Inch Manual Push Reel Mower

The LawnMaster manual reel mower requires no gas or batteries, making it an environmentally friendly choice. Its scissor-like cutting action promotes healthier grass by avoiding tears. This motorless design is ideal for small, flat yards where you prefer quiet operation and zero emissions while maintaining your lawn.

Those seeking easy height adjustments

Our pick: LawnMaster 20-Inch Manual Push Reel Mower

The LawnMaster offers nine distinct cutting positions ranging from 1.3 to 2.6 inches. This wide range allows for precise customization of your lawn height. The manual reel mechanism ensures a clean cut across these varied settings, making it easier to maintain a specific grass length compared to fewer adjustment options.

Users needing maneuverability in tight spaces

Our pick: PowerSmart 18-Inch 144cc Gas Push Mower

The PowerSmart features 8-inch rear and 7-inch front wheels designed for smooth handling around obstacles. Its compact dimensions and push drive type allow for easy navigation near trees and flower beds. This setup ensures you can maneuver through tight corners and complex yard layouts with minimal effort.

Quick picks

#ProductBest forPrice
1 PowerSmart 18-Inch 144cc Gas Push Mower small yards with simple needs Check price of PowerSmart 18-Inch 144cc Gas Push Mower on Amazon
2 LawnMaster 20-Inch Manual Push Reel Mower small, flat lawns seeking a clean cut Check price of LawnMaster 20-Inch Manual Push Reel Mower on Amazon

The products compared

PowerSmart 18-Inch 144cc Gas Push Mower

Best for: small yards with simple needs

Power Source
Gas (what this guide is about)
Cutting Width
18 in
Drive Type
push
Deck Material
steel
Cutting Height
1.5-3.9 in, 5 positions
Mowing Function
side discharge

View on Amazon: PowerSmart 18-Inch 144cc Gas Push Mower Affiliate link

This PowerSmart mower uses a 144cc 4-cycle gas engine for reliable power. It features an 18-inch steel deck and side discharge to handle thick grass. You can adjust the cutting height in five positions from 1.5 to 3.9 inches. The 8-inch rear and 7-inch front wheels help you navigate tight corners. It weighs 58.4 pounds and is designed for small yards.

Pros

  • 144cc 4-cycle engine with auto choke
  • 18-inch steel deck for durability
  • Side discharge for thick grass
  • 5-position height adjustment (1.5-3.9 inches)
  • 8-inch rear and 7-inch front wheels

Cons

  • Push drive requires manual effort
  • 18-inch cutting width is narrow
  • No mulching or bagging kit included

Good fit if

  • You have a small yard
  • You want a simple push mower
  • You prefer side discharge

Skip if

  • You need self-propelled power
  • You want mulching or bagging
  • You have a large lawn

Verdict: PowerSmart 18-Inch Gas Push Mower is a basic tool for small yards. It suits you if you want a simple push mower with side discharge.

LawnMaster 20-Inch Manual Push Reel Mower

Best for: small, flat lawns seeking a clean cut

Power Source
Manual (what this guide is about)
Cutting Width
20 in
Drive Type
push
Cutting Height
1.3-2.6 in, 9 positions
Application
Lawn
Dimensions
27.1 × 18.2 × 10.6 inches

View on Amazon: LawnMaster 20-Inch Manual Push Reel Mower Affiliate link

This LawnMaster mower uses a 5-blade reel design for a scissor-like cut that avoids tearing grass blades. It requires no gas or batteries, relying entirely on manual pushing power. The 20-inch cutting width and 10-inch front wheels aid maneuverability. You can adjust the cutting height across 9 positions, ranging from 1.3 to 2.6 inches. The durable steel blades are built to last, offering a quiet, maintenance-free option for small lawns.

Pros

  • 20-inch cutting width for efficient coverage
  • 9 adjustable cutting positions from 1.3 to 2.6 inches
  • 5-blade steel reel provides a clean, scissor-like cut
  • No gas or batteries required for operation

Cons

  • Manual push drive requires physical effort
  • Narrow 1.3 to 2.6-inch cutting height range
  • Lacks motorized assistance for steep terrain

Good fit if

  • You want a quiet, emission-free mowing experience
  • You have a small, flat lawn under 5,000 square feet
  • You prefer low maintenance without fuel or battery care

Skip if

  • You have a large lawn requiring rapid coverage
  • You need to cut grass taller than 2.6 inches
  • You prefer a motorized drive to reduce physical exertion

Verdict: LawnMaster 20-Inch Manual Reel Mower is a solid choice for homeowners with small, flat yards who value a clean cut without the noise or upkeep of gas engines. It fits users who do not mind pushing the mower for a healthier lawn.

Specifications side by side

Spec PowerSmart 18-Inch 144cc Gas Push Mower LawnMaster 20-Inch Manual Push Reel Mower
Power Source gas, 144cc 4-cycle manual reel
Cutting Width 18 in 20 in
Drive Type push push
Deck Material steel not stated
Cutting Height 1.5-3.9 in, 5 positions 1.3-2.6 in, 9 positions
Mowing Function side discharge not stated
Application Yard, Small Yards, Lawn Lawn
Dimensions 27.2 × 14.3 × 20.1 inches 27.1 × 18.2 × 10.6 inches
Weight 58.4 pounds not stated
Size 18 Inch-144cc-5 Heights 20-Inch
Color red Orange
Model DB8618C LMRM2001

Frequently asked questions

Is a gas mower better than a manual reel mower for tall grass?

Yes, gas mowers handle tall grass more effectively. The PowerSmart 144cc engine provides consistent power to cut through dense vegetation without manual strain. Its side discharge feature clears clippings efficiently, preventing clogs. Manual reel mowers require significant physical effort and may struggle with thick or wet grass.

How wide is the cutting deck on these push mowers?

The cutting width varies by model. The PowerSmart gas mower has an 18-inch cutting width. The LawnMaster manual reel mower offers a wider 20-inch cutting path. A wider deck covers more ground per pass, which can reduce mowing time on flat, open lawns.

Do manual reel mowers require an engine or fuel?

No, manual reel mowers do not use an engine or fuel. The LawnMaster LMRM2001 relies entirely on human effort to turn its reels. This motorless design eliminates noise, exhaust fumes, and the need for gas or oil maintenance, making it a simpler tool for small yards.

Which mower is lighter to push and maneuver?

The manual mower is generally lighter. The LawnMaster weighs less than the PowerSmart gas model, which tips the scales at 58.4 pounds. The manual option weighs significantly less, reducing physical fatigue. However, the manual mower requires more pushing force to cut grass compared to the self-propelled power of the gas engine.

Can I adjust the cutting height on these mowers?

Yes, both mowers offer height adjustments. The PowerSmart gas mower features five distinct height settings. This allows you to tailor the cut for different grass types or seasonal changes. Manual reel mowers also typically include height adjustment mechanisms, though the specific number of settings may vary by model.

What is the best mower for a small, flat yard?

Both options suit small yards, but the choice depends on your preference. The PowerSmart is ideal if you want minimal physical effort and side discharge. The LawnMaster is best if you prefer a quiet, clean cut without engine upkeep. For very small, flat lawns, the manual reel mower is often sufficient.

See also