Hobart 500551 EZ TIG Inverter Based Welder Review

If you are a hobbyist and looking for an easy-to-use welder, try Hobart 500551 EZ TIG welder. It is one of the most versatile welders that offers excellent weld performance. Let’s know more in our unbiased Hobart 500551 EZ TIG inverter-based welder review. 

Although it’s a costlier model, the quality product comes at a quality price, so does Hobart 500551. The extra price you pay for this welder is well worth it. Hobart 500551 welder is a complete welding package.

Highlights of Hobart 500551 EZ TIG Inverter Based Welder

The superior Hobart 500551 EZ TIG welder offers a range of high-end features that sets it apart. Take a look.

Easy-to-Use Interface

The first thing everyone appreciates is the easy-to-use interface of Hobart 500551. It makes welding fun. All you have to do is to power on the machine and choose the material you want to weld. Then set the material thickness range, and it is ready to go.


Another notable feature of Hobart 500511 is its fan-on-demand feature. This feature comes handy while reducing the debris that the machine draws in. It successively cut down the dust, which enhances the welder’s lifespan.  

Inverter-Based Design

The Hobart 500551 EZ TIG welder features an inverter-based power source. It doesn’t consume excessive power but produces a consistent welding arc. Indeed, it’s a useful feature as you can save a lot of power bills.

HF Start

The welder features high-frequency starts (HF) that enables non-contact arc starting. It removes tungsten and other material contamination. 

Impressive Versatility

The Hobart 500551 EZ TIG welder can run on both AC and DC. There is a button for easy switching between AC and DC. With DC, you can weld stainless, steel, and metals. While the AC portion allows you to weld aluminum with ease. 

Better Control

If you want to have finer control while welding, Hobart 500551 welder has it all. Its infinite amperage control allows for extended operating range. The welder also comes with foot control for remote amperage control. 


The Hobart 500551 EZ TIG inverter-based welder weighs only 50lbs. Like the name EZ, it is too easy to take anywhere. For added portability, it has two carrying handles. 

Safety Features

The welder will automatically turn off the unit while temperature increases. Thanks to its automatic high-temperature shutdown feature. When the machine gets too warm, it will help to cut off the power. It doesn’t let the air-cooled torch to get warm. 

What We Liked

  • Wide amperage control
  • High frequency starts
  • Impressive versatility
  • Single knob control
  • Strong and stable performance 
  • Easy-to-use interface
  • AC/DC power source
  • Flexibility to switch between AC and DC
  • Easy setup
  • Auto shut down

What We Didn’t Like

  • Not appropriate for novices
  • Costly 

Who Should Buy This?

The Hobart 500551 welder is highly recommended for those who are ready to invest in an all-rounder welder for any price. If you are a regular DIYer, you must have this versatile welding machine.
Hobart 500551 EZ-TIG 165i AC DC TIG Welder 230V

Frequently Asked Questions (FAQs)

Can Hobart 500551 use to weld aluminum of ¼” thickness?

Is the attached TIG torch air cooled?

Yes, it is air-cooled. If you perform short welding sessions, the machine will not get hot. You have to stay within the rated duty cycle; only then the welder will not become hot.

What size circuit breaker do I need with Hobart 500551 welder?

The welder requires at least a 30A circuit breaker. But, 50A at 240V single phase works better.

Will Hobart 500551 work with a 110V outlet at home?

No, it won't. The welder does work with a 220V/240V outlet only.

Final Thoughts

All in all, Hobart 500551 EZ TIG inverter-based welder is a mid-range TIG welder. We found this handy with easy-to-understand features for both beginners and experienced welders. That’s all for our Hobart 500551 EZ TIG inverter-based welder review.

Other Hobart Welder:

  1. Hobart 500502 Stickmate welder review

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