Summer 2026

Mechanical Engineer Intern

Multiple Teams

Posted on 9/11/2025

Deadline 9/8/26
Lennox International

Lennox International

1,001-5,000 employees

Manufactures and distributes HVAC and refrigeration.

Compensation Overview

$22.50 - $25/hr

+ Overtime

Iowa, USA

In Person

Relocation assistance may be provided.

Category
Mechanical Engineering (1)
Requirements
  • Pursuing a degree in Mechanical Engineering
  • Strong written and verbal communication
  • Proficiency in MS Office
  • Knowledge of principle concepts for the role
  • Passion for design engineering
Desired Qualifications
  • Interest or desire to lead project teams
  • Well organized & detail oriented
  • Ability to work independent as well as part of a team
  • Passion for producing high quality work

Lennox International provides climate control solutions for homes and businesses across three segments: Residential Heating & Cooling, Commercial Heating & Cooling, and Refrigeration. It designs, manufactures, and sells HVAC and refrigeration products that heat, cool, ventilate, and control indoor environments. The company differentiates itself through vertical integration of manufacturing and distribution and by serving customers through direct sales, distributors, and company-owned parts stores, giving it broad reach. Its goal is to deliver reliable, efficient climate control and steady growth across its diversified product lines and channels.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Richardson, Texas

Founded

1895

Simplify Jobs

Simplify's Take

What believers are saying

  • Building Climate Solutions segment grew 26% organically in Q1 2026 with 300 bps margin gain.
  • Raised 2026 revenue guidance to 8% growth, targeting $6.5B–$7.5B by 2030.
  • Analysts project 8.9% annualized growth through 2026, exceeding industry 6.8%.

What critics are saying

  • Home Comfort Solutions revenue fell 10% in Q1 2026, losing share to Carrier and Trane.
  • Mexico tariffs hit Saltillo facility, compressing margins 200–300 bps by Q4 2026.
  • Dealer consolidation by Comfort Systems USA erodes 10% of 7,000-installer network by 2026 end.

What makes Lennox International unique

  • Vertically integrated manufacturing in Saltillo Mexico and Marshalltown Iowa optimizes supply chain.
  • Ariston joint venture launched March 16, 2026, enters water heating market.
  • Samsung Lennox HVAC North America debuted February 4, 2025, expands ductless VRF offerings.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Paid Vacation

Paid Sick Leave

Paid Holidays

Hybrid Work Options

Mental Health Support

Employee Stock Purchase Plan

Tuition Reimbursement

Unlimited Paid Time Off

Company News

PR Newswire
Mar 3rd, 2026
Lennox enters North American water heating market through Ariston joint venture

Lennox International has entered the North American residential water heating market through a joint venture with Ariston Group, with dealer orders beginning 16 March. The expansion combines Lennox's established dealer network with Ariston's water heating technology expertise. The new product line includes traditional and heat pump water heaters featuring heavy-gauge steel construction and PermaClad glass lining for corrosion protection. Select models offer energy-efficient operation with quiet performance and intelligent controls. Compatible systems integrate with the Lennox Home platform, allowing homeowners to monitor water heaters and thermostats together. The move enables Lennox dealers to offer complete home comfort solutions, bundling HVAC systems with water heating products. The company positions this as a natural extension of its whole-home comfort strategy, responding to dealer and homeowner demand for comprehensive offerings.

Yahoo Finance
Jan 28th, 2026
Lennox misses Q4 estimates with sales down 11% to $1.2B, guides below expectations for 2026

Lennox International, a climate control solutions company, reported fourth-quarter revenue of $1.20 billion, missing analyst estimates of $1.27 billion and marking an 11.2% year-on-year decline. The company's non-GAAP earnings per share of $4.45 also fell short of expectations by 5.7%. Operating margin decreased to 16.4% from 18.2% in the prior year period, whilst free cash flow margin improved to 31.5% from 20.2%. Adjusted EBITDA came in at $237.2 million, below the $249.3 million analyst consensus. For financial year 2026, Lennox issued adjusted EPS guidance of $24.25 at the midpoint, missing analyst estimates by 1.1%. CEO Alok Maskara highlighted that Lennox achieved annual margins exceeding 20% for the first time despite industry headwinds.

PR Newswire
Apr 23rd, 2025
Lennox Reports First Quarter Results

Q1 Highlights(All comparisons are year-over-year, unless otherwise noted) Revenue $1.1 billion, up 2%. GAAP Operating Income $156 million – Segment profit down 7% to $156 million. GAAP diluted EPS $3.37 – Adjusted diluted EPS down 3% to $3.37

PR Newswire
Mar 21st, 2025
Lennox Declares Quarterly Dividend

DALLAS, March 21, 2025 /PRNewswire/ -- The Lennox (NYSE: LII) Board of Directors approved a quarterly cash dividend of $1.15 per share of common stock, payable May 15, 2025, to stockholders of record as of April 30, 2025.About LennoxLennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems. Additional information on Lennox is available at www.lennox.com.Media Contact[email protected]Investor Relations Contact[email protected]SOURCE Lennox International Inc

PR Newswire
Feb 19th, 2025
Lennox El297V Gas Furnace Wins Prestigious Good Design(R) Award

The EL297V gas furnace, recognized for its innovative design and exceptional value, joins the legacy of award-winning products from Lennox.DALLAS, Feb. 18, 2025 /PRNewswire/ -- Lennox (NYSE: LII), a leading provider of innovative climate control solutions, proudly announces the Elite Series EL297V Gas Furnace has been honored with a GOOD DESIGN® Award from The Chicago Athenaeum: Museum of Architecture and Design and Metropolitan Arts Press Ltd. The GOOD DESIGN® Award, established in 1950, is the world's oldest and most prestigious program celebrating innovation and sustainability in design. The recognition highlights the EL297V's innovative design, energy efficiency, and value

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