Hartzell's Heat & Air service van at Marathon Oil natural gas processing facility in Oklahoma

Industrial HVAC & Mechanical Services — Oklahoma

Hartzell’s Heat & Air provides specialized HVAC and mechanical services for industrial facilities, oil and gas processing sites, pipeline operations, and large-scale commercial projects throughout central and western Oklahoma. We bring the same precision and accountability to a 20-unit industrial cooling system that we bring to a residential installation.

Industrial HVAC  ·  Oil & Gas Facilities  ·  Liquid Cooling Systems  ·  Call 405-375-4822

Industrial HVAC Capabilities

Liquid Refrigerant Cooling Systems

Compressorless pump-driven liquid cooling for large industrial motors and heat-sensitive equipment. Highly reliable — no compressor, minimal moving parts.

Oil & Gas Facility HVAC

HVAC for natural gas processing plants, compressor stations, pipeline facilities, and production sites. Familiar with site safety requirements and hazardous area classifications.

Motor Control Room Cooling

Precision cooling for motor control centers and electrical switchgear rooms. Critical for equipment protection and safe operation in industrial facilities.

Large Commercial Boilers

High-capacity boiler replacement and installation for industrial and large commercial facilities. See our Boilers page for details.

Controlled Environment Cooling

Precision temperature and humidity control for data centers, server rooms, cannabis cultivation, and other critical environment applications.

Project Management

Full project management from design through commissioning, including coordination with engineering firms, general contractors, and facility operators.

Project Spotlight: Marathon Oil / Teco-Westinghouse — Omega & Coalton, OK

Hartzell’s completed a joint venture with Teco-Westinghouse on a specialized liquid refrigerant cooling system at Marathon Oil’s natural gas processing facilities in Omega and Coalton, Oklahoma. The Teco-Westinghouse motors at these sites pump natural gas hundreds of miles through the pipeline to Houston — they run continuously and generate significant heat loads that must be managed precisely.

The solution was a compressorless liquid refrigerant pump cooling system using Parker cooling units. Liquid refrigerant circulates through the motor cooling jackets and back to remote heat exchangers — no compressor in the circuit, just a pump. The result is a highly reliable, low-maintenance system well-suited to remote industrial operation. The project came in under budget and ahead of schedule.

Hartzell's service van at Marathon Oil natural gas processing facility Oklahoma
Hartzell’s on-site at Marathon Oil — Omega, Oklahoma gas processing facility
Parker liquid refrigerant cooling units at Oklahoma natural gas processing facility
Parker liquid cooling units — compressorless refrigerant pump system for Teco-Westinghouse pipeline motors
Hartzell's technician in hard hat servicing liquid refrigerant cooling in industrial motor control room
Inside the motor control room — liquid refrigerant cooling connections on large Teco-Westinghouse motors
Hartzell's van at industrial gas facility with crane and stainless piping Oklahoma
Hartzell’s staged at the Coalton facility — crane and gas processing stainless piping in background

Project Spotlight: Sprint — A Classified National Infrastructure Facility

Project Scale
$30M+ — Sprint’s Largest Ever

Duration
One Full Year — 2,300 Photos

Systems
Chiller Plant, Cooling Towers, Switchgear

Result
Under Budget, Ahead of Schedule, Zero Outages

Before Hartzell’s was doing industrial HVAC work in central Oklahoma, Dave Hartzell was the onsite engineer for Sprint’s largest infrastructure project in company history — a classified national infrastructure facility housing the original transatlantic cable data center. The project ran for one continuous year and covered everything: a full cooling tower and chilled water plant, generator switchgear and automatic transfer switch systems, precision cooling for mission-critical server infrastructure, and complete mechanical and electrical distribution throughout a new building addition. Every piece of equipment was commissioned, documented, and tagged with a complete operating manual and maintenance manual before the project closed.

View from rooftop of classified national infrastructure facility at night with city skyline and crescent moon
Late night on the roof — the project ran around the clock. National infrastructure does not wait for daylight. Neither did we.

Aerial view of Sprint infrastructure construction site with crane and concrete foundation work in progress
Aerial view mid-project — continuous crane operations, concrete crews, coordinated around the live facility operating alongside construction.

Completed chilled water plant with centrifugal chillers and white insulated pipe headers at Sprint facility
Completed chiller plant — centrifugal chillers, insulated pipe headers, pump skid. This system served a facility where cooling failure was not an option.

Completed Sprint electrical switchgear room with full row of branded panels danger high voltage signs
The switchgear room completed — every panel documented, every cabinet tagged. Sprint logos. DANGER HIGH VOLTAGE. Zero outages from groundbreaking to handoff.

→ See the full Sprint project timeline — one year of photos, start to completion

Why Industrial Clients Choose Hartzell’s

  • Experience on active industrial sites — oil and gas, pipeline, processing facilities
  • Specialty system knowledge — liquid refrigerant cooling, motor cooling, process cooling
  • Project management capability — joint ventures, multi-phase projects, general contractor coordination
  • Master HVAC License + NATE certified — fully licensed for all mechanical work in Oklahoma
  • On-time, under-budget track record — industrial clients can’t afford overruns
  • Employee-owned for 15+ years — the same team, the same accountability, over 35 years

Frequently Asked Questions

What industrial HVAC services does Hartzell’s provide?

Hartzell’s provides liquid refrigerant cooling systems for industrial motors, oil field and gas processing facility HVAC, large commercial boiler installation, controlled environment cooling, and specialty mechanical work for industrial facilities across central and western Oklahoma.

Can Hartzell’s handle HVAC for oil and gas facilities?

Yes. We have direct experience on oil and gas processing sites in Oklahoma, including liquid refrigerant cooling for large pipeline motors at Marathon Oil facilities. We’re familiar with the safety requirements, permitting, and system design demands of oil field environments.

What is a liquid refrigerant pump cooling system?

A liquid refrigerant pump system cools industrial equipment using circulating liquid refrigerant without a compressor. The refrigerant absorbs heat from the equipment and dissipates it through remote heat exchangers. These systems are highly reliable because there are no moving parts in the refrigeration circuit — just a pump. They’re ideal for cooling large motors in remote or hazardous industrial settings.

Does Hartzell’s take on large industrial projects?

Yes. We have experience managing large-scope industrial HVAC projects from initial design through commissioning, including joint ventures with engineering firms. Call 405-375-4822 to discuss your project requirements.

→ See all commercial & industrial project case studies

Industrial HVAC Project Inquiry

Call to discuss your project requirements. We work with facility operators, general contractors, and engineering firms.

📞 405-375-4822
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