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Waugh Consulting Engineers, LLC

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  • Pasadena, CA 91101
  • 626-628-8745

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HVAC Equipment


  • Air Handling Units (DX and Chilled Water)

  • Fan Coil Units (DX and Chilled Water)

  • Condensing Units

  • Packaged Air Conditioning Units

  • Packaged Terminal Air Conditioning (PTAC) Units

  • Ductless Split Systems

  • Variable Refrigerant Systems

  • Air Cooled Chillers

  • Water Cooled Chillers

  • Evaporative Coolers

  • Supply and Exhaust Fans

  • VAV Terminal Boxes

  • Fan Powered Terminal Boxes (Parallel and Series)

  • Computer Room Air Conditioning (CRAC) Units

  • Chemical Filtering Systems

  • HEPA Filtering Systems

  • Chilled Water Pumps

  • Hot Water pumps

  • Hydronic Systems Accessories

  • Energy Recovery Systems

  • Run-Around Coils

  • Air Control Venturi Valves for Laboratories

  • Laboratory Fume Hoods, CAV and VAV

  • Laboratory High-Plume Exhaust Fans


Provides supporting services to Clients in Oil and Gas, Chemical, Petrochemical, and Pharmaceutical facilities, Hospitals, Laboratories, Clean Rooms, Emergency and Urgent Care, Institutional and Commercial in the following areas:

  • Perform HVAC Load Calculations

  • Design HVAC Systems for precise temperature, humidity, and pressurization control

  • Perform System Selection Based on application

  • Equipment sizing and selection

  • Design air distribution systems

  • Design Chilled Water and Hot Water Distribution Systems

  • Design Chilled Water and Hot Water Plants

  • Provide calculations and design pressurization Systems for Laboratories, Hospitals, Pharmaceutical facilities, etc.

  • Design Clean Rooms

  • Provide Air Flow/Control Diagrams and Sequence of Operations for Equipment and Systems

  • Perform Building Energy Audits and suggest Energy Saving Measures for building performance improvement.

Heat Transfer


Provides supporting services to Clients for all areas of design, fabrication and construction.

Expert assistance in the following areas:

  • Shell and Tube Heat Exchangers (ASME / TEMA / API 660)

  • Air Cooled Heat Exchangers / Air Cooled Condensers (API 661)

  • Double Pipe / Hairpin Heat Exchangers

  • Plate Style Exchangers (API 662) – Spiral Plate, Plate and Frame, Welded Plate, Plate and Shell

  • Brazed Heat Exchangers

  • Printed Circuit Exchangers

  • Ground Flares, Enclosed Flares, Elevated Flares and Burn Pits

  • Elevated Flare Riser Sizing and Tip Selection (API 521 / API 537)

  • Incinerator (Reaction Furnaces) and Waste Heat Boilers (Sulfur Condensers)

  • Heat Loss Calculations (Piping Systems, Thermal Issues in Plant Layout)

  • Tank Heaters (external and internal)

  • Packaged Units

  • Skid Units (Fuel Gas Treating, Ammonia, Filtration, Flow Metering)

  • Water Treatment

  • Attemperators

  • Boilers

  • Burners (API 560 / NFPA)

  • Condensers

  • Cooling Towers

  • Refrigeration Style Coolers

  • Deaerators and Degasifiers

  • Dehydration and Dryers

  • Steam Drums

  • Stacks

  • Scrubbers

  • Preheaters


  • Heat Exchangers – forced-draft air cooled, cooler w/ recirculation, hairpin, spiral plate, stacked, welded plate, printed circuit

  • API 560 & 530, ASME B31.3, NFPA 85/86

  • NOX and CO – reducing technologies

  • Hot Oil Heater System

  • Incinerator / Thermal Oxidizer Package

  • Turnkey Packaged / Field -Erected Boilers

  • Flare Tips, Molecular Seal & Stack

  • Cooling Towers & Wet Surface Air Coolers

  • PAS Units

  • Packinox Heat Exchangers


  • Assist in preliminary design estimates

  • Feasibility Studies

  • Emission Studies

  • Dispersion Analysis

  • Thermal ratings / sizing and hydraulic of exchangers

  • Equipment Cost Estimates

  • Code calculation on shell-and-tube exchangers

  • Assist in developing project schedules

  • Provide or assist in developing equipment design criteria

  • Provide design calculations (HTRI, COMPRESS, PV Elite, EDR) for: heat exchangers, select applicable heat transfer rate and shell and tube arrangements

  • Provide setting plans for heat exchangers incorporating all dimensional information and structural loads

  • For fired heater and furnaces, provide conceptual design complete with selection of auxiliaries such as combustion air preheaters, selective catalytic reduction units and forced-draft and induced-draft fans.

  • Develop and/or review equipment specification and standards

  • Data sheet preparation

  • Develop Inspection Test Plans (ITP)

  • Prepare or review equipment inquiry requisitions

  • Prepare or review Technical Bid Analysis

  • Review supplier fabrication drawings

  • Provide project support for equipment installation and startup

  • Perform pinch analysis, economic feasibility study and heat loss analysis

  • Thermal Radiation & Noise from Flares

  • Witness testing

  • Fired heaters rating check and optimization vertical cylindrical versus box or horizontal cabin)

  • Heater rating check & draft calculation, optimization, retrofit and combustion study

  • Steady-state & transient heat transfer analysis using FEA

  • Fired heaters rating check and optimization

Cooling Towers
Packaged and Stick Built

Fired Heaters

Cabin Heater

S&T Heat Exchanger

Air Cooled HX