US
Thermora

Thermora A-TR-GG Grill

  • Grill
  • 553 sq in
  • Propane
  • Freestanding
4.5/ 5 on Amazon14Amazon ratings2.7ProductDome score
  • Better rated than 55%
Limited evidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want cast iron grates for stronger searing on a mid-size propane grill

A three burner propane grill combining cast iron grates with a stainless steel body, aimed at cooks who value sear quality over convenience.

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ProductDome scorecard

How it ranks among the 261 grills we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 56% of scorecategory median 4.4★4.5

4.5★ across 14 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 48 ratings1.5

14 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score0.0

Modest tracked demand last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 261 grills we track - how the scorecard works · full grills data report. Confidence: limited - limited rating history.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The Thermora A-TR-GG is a freestanding propane grill with three burners and 553 square inches of cooking area, built from cast iron and stainless steel. It is a mid-size option for households that grill regularly but do not need commercial-scale grate space.

Cast iron grates hold heat and produce stronger sear marks than stamped steel, though they need seasoning and drying to avoid rust, unlike the stainless steel panels elsewhere on the unit. No BTU figure is listed, so total heat output is unknown.

  • 3 burners, 553 sq in cooking area
  • Cast iron and stainless steel construction
  • Propane fuel
  • Freestanding install

Who it's for

Good fit for someone who wants cast iron sear quality on a mid-size three burner grill. Less suited to anyone who wants a fully stainless, low maintenance grate.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Cast iron grates for stronger sear retention
  • 553 sq in area across three burners
  • Freestanding, no built-in cutout required
What to check first
  • No BTU rating listed to gauge total heat
  • Cast iron grates require seasoning and rust upkeep

Performance notes

Three burners cover 553 square inches, reasonable room for multiple zones without stretching into commercial territory. Cast iron grates retain heat well once preheated, helping with consistent sear marks, though they need oiling and drying after cleaning to resist rust.

Specifications

BrandThermora
Dimensions & fit
Dimensions22.1 × 46.1 × 56.5 inches
Power & efficiency
Fuel TypePropane
Construction & materials
MaterialCast Iron, Stainless Steel
ColorBlack
Compatibility & installation
Install TypeFreestanding
Other details
Cooking Area553 sq in
Burners3

How it compares

This product against the closest alternatives we track in grills.

ProductAmazon ratingRatingsProductDome score
Thermora A-TR-GG GrillThis product4.5 / 5142.7 / 5
Cuisinart CGG-306 GrillCuisinart4.4 / 56,8484.4 / 5
Brand 51060001 GrillBrand4.8 / 58,2004.1 / 5
Charbroil 463253925 GrillCharbroil4.5 / 513,4294.0 / 5
Elite Gourmet EMG6505G GrillElite Gourmet4.5 / 512,7474.0 / 5
Frequently asked

Questions about the Thermora grills

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What are the A-TR-GG's grates made of?

Cast iron, paired with a stainless steel body.

How many burners does it have?

Three burners covering 553 square inches of cooking area.

What fuel type does it use?

Propane.