Everlast 251si MIG TIG Welder Review

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In Brief: Everlast 251si Review

The Everlast 251si combines convenient portable features with efficient functions. It allows users to perform TIG, stick, and MIG welding all in one machine, and it includes multiple automatic and manual settings for all three. The machine comes with a MIG torch, a TIG torch, and a stick electrode holder to get users started right out of the box.

The Everlast company listens to its customers’ needs and works to fill the role of a convenient, powerful welding machine at a reasonable price point.

Its machines work beautifully for home hobbyists, DIYers, garage welders, and much more.

As one of the most impressive products from the Everlast company’s lineup, the Everlast 251si showcases several functions in one. This machine handles three welding methods while keeping its features portable and user-friendly.

Key Specifications of the Everlast 251si

New Everlast PowerMTS 251Si Pulse MIG TIG Stick 250amp 110v/220v Multi Process Welder

The Everlast 251si welding machine incorporates pulse TIG functions, automatic and manual MIG functions, and a convenient, portable size all in one efficient device.

This product tackles a variety of metals with ease.

Check out the Everlast 251si in action here –


Read the long list of Everlast 251si specs below:

TIG, Stick, MIG
Voltage/Phase120/240V 1-Ph
MIG @ rated duty cycle120V: 160A/21.5V @ 40%
240V: 260A/26.5V @ 40%
TIG @ rated duty cycle120V: 160A/16V @ 40%
240V: 260A/20V @ 40%
Stick @ rated duty cycle120V: 120A/24.8V @ 40%
240V: 200A/28V @ 40%
Max Rated Amps120V @ 160A
240V @ 240/260A
Dimensions25 in. x 11 in. x 18 in.
WarrantyCheck Manual
FeaturesDual voltage
Pulse TIG
AccessoriesTIG torch
MIG gun
Stick electrode holder
Work cable with clamp
Foot pedal
Consumables kit

Unique Features

With both high-frequency and lift start TIG functions as well as automatic and manual MIG settings, the Everlast 251si provides something for everyone.


This machine includes high-frequency start functions and allows users to keep the torch cold until igniting it with the push of the trigger.

Lift Start

With the included lift start function for TIG welding, users may start their welds by touching the torch to the material to be welded.

Pulse TIG

The included pulse TIG functionality makes aluminum welding possible and allows more experienced users to enjoy working with this machine.

Dual Voltage

The welder functions on dual voltage, so you can use it on a household current for convenience or a 120V or a 220V current for more power.

Automatic and Manual Functions

This machine features automatic setting adjustments for MIG welding but also allows manual adjustments and inputs for more precise, experienced results.


Performance & Ease of Transportation

The Everlast 251si welding machine combines power with portability to create a professional-grade welder designed for the home hobbyist.


Customers report excellent results when operating this machine on 120V current. Despite the lower current and reduced power behind it, this machine functions smoothly and offers steady, hot welds on household currents.

On 240V power, customers enjoy professional-grade results.

The machine’s durable internal components and reliable build allow it to perform beautifully when operated on higher voltage inputs.

The three different included welding techniques make this machine efficient and beneficial for all sorts of household and workshop tasks.

Ease of Transportation

At 80 pounds, this machine weighs somewhat more than its competitors.

The additional weight comes from the three different included functions and the external components required to operate those functions.

Despite its slightly higher weight, the machine remains easy to lift and move when needed.

When mounted on a utility cart, it provides even more ease of transport. Thanks to its dual-voltage design, it plugs in easily almost anywhere.


Weld Quality and Available Options

The Everlast 251si welding machine creates smooth, solid welds that hold. The machine offers enough power to generate professional outputs and results that make beginners proud to show off their work.

When used as a stick or TIG welder, this machine shines. Its results outperform some of its competitors and keep up nicely with others.

As a MIG welder, it offers enough quality to last, but falls slightly short of the TIG and stick results.

The Everlast 251si comes in just one option. Customers may add the following:

  • Utility cart: This machine weighs more than many of its competitors, so a utility cart makes it more portable than ever before.
  • Generator: Some customers prefer to operate this machine on a generator for more portability and power on the go.

Ease of Maintenance, Repairs & Warranty

The Everlast company web site provides some parts available for purchase online. These parts include consumables, accessories, and cables as well as some external parts of the welding machine.

Customers should perform routine maintenance on this machine but should never repair or replace internal components. Only a professional should handle the inside of the machine.

For routine maintenance, unplug the machine for 30 minutes before cleaning. Use compressed air to clean dirt and debris from the interior of the machine and the vents every 1 to 3 months.

When cleaning the machine, also check connectors, cables, and consumables. Replace any damaged components immediately and tighten any loose connections.

The Everlast company provides a five-year warranty for parts and labor that covers its welding machines. The warranty also includes six months of parts and labor for all accessories including torches, guns, cables, and more.

Additionally, the company provides a 30-day money-back guarantee for all products, including consumables.

This feature allows customers to return damaged or malfunctioning products within 30 days for a full refund or replacement.

For more warranty information, contact the Everlast company at 877-755-9353.


Does the Everlast 251si welding machine use air cooling or liquid cooling?

This welding machine uses air cooling for the included torch.

Can you use flux core with the Everlast 251si welding machine?

You can, but the company does not specify flux core as one of the machine’s main functions.

Can the Everlast 251si welding machine work with a spool gun attachment?

Yes. This welder works best with the SM3035-SMT spool gun.

What size generator does the Everlast 251si welder require?

This machine requires at least 10,000 watts of clean power to run on a generator.

Price of the Everlast 251si

The Everlast 251si welding machine includes three main welding functions and the option to use it as a flux core welder for a fourth.

It comes packed with features as well as all the accessories needed for stick, TIG, and MIG welding out of the box.

With so many included features and functions, this machine costs considerably more than its competitors.

Its higher price tag comes from its extra capabilities and its professional-quality results.

Most customers feel this product remains well worth the cost, and that the price reflects the overall value of the machine.


Who Should Buy the Everlast 251si?

This machine provides enough power to tackle any home repairs and DIY jobs around the house. With three different functions in one, it makes an excellent addition to any homeowner’s setup.

The machine also creates professional results that hold up well when used as part of a shop set up, too. Some shops enjoy using this machine as a portable solution for smaller jobs on the go.

The machine works well for mild steel, stainless steel, chrome-moly, copper, titanium, and aluminum, depending on the method used.

Customers who need to weld a variety of metals find this machine beneficial.

Our Recommendation

The Everlast 251si welding machine creates powerful results. Its convenient multi-use functions and dual-voltage input allow beginners to learn easily on this machine while its multiple settings encourage experienced users to grow their skills, too.

We recommend this welding machine for household repairs, home hobbyists, and DIYers looking for a product that can handle a wide variety of metals and material thicknesses.

We also recommend it for professional shop welders looking for a portable solution for on-site work.


Last update on 2024-07-19 / Affiliate links / Images from Amazon Product Advertising API

About Kevin Stewart

Kevin is an expert metal worker with a passion for designing and making. He is passionate about his power tools. He contributes his ideas to various online platforms.

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