Maffett Loftis Engineering specializes in identifying, evaluation, and designing mechanical systems that reduce energy expense and generate compelling financial paybacks for our clients.

Heating and Cooling Equipment

  • Building zoning
  • Tonnage calculations
  • Air flow requirements
  • Refrigerant lines
  • Condensation drainage
  • Service Access - clearances and power outlets
  • Sound dampening


  • Economizers
  • Outside air intake
  • Carbon-Dioxide sensing
  • Exhaust fans - restroom
  • Kitchen exhaust hoods
  • Air filtration
  • Radon abatement


  • Supply and return ducts
  • Insulation
  • Air flow dampers
  • Fire dampers
  • Diffusers/ grilles / louvers


  • Thermostats
  • Smoke detection - auto shutdown


  • Electrical - Lighting
  • Electrical - Power requirements
  • Electrical - Air diffuser placement with lighting
  • Fire Alarm - Smoke detection in ductwork
  • Fire Alarm - Air diffusers with smoke detectors
  • Fire Sprinkler - Air diffusers with sprinklers
  • Plumbing - Condensation drainage
  • Architectural - Ceiling heights and misc. architectural elements such as soffits and bulkheads
  • Structural - Beams and ductwork
  • Misc ceiling equipment

Code Compliance

  • A.S.H.R.A.E. - The American Society of Heating, Refrigerating and Air-Conditioning Engineers
  • A.S.M.E. - The American Society of Mechanical Engineers
  • A.S.P.E. - The American Society of Plumbing Engineers
  • ANSI - The American National Standards Institute
  • IMC - International Mechanical Code
  • IBC - International Building Code
  • SBCCI - Standard Building Code
  • SMC - Standard Mechanical Code
  • ART - American Refrigeration Institute
  • ASTM - American Society for Testing and Materials
  • NFPA - National Fire ProtectIOn Association
  • SMACNA - Sheet Metal and Air Conditioning Contractors National Association
  • NEMA - National Electrical Manufacturers Association
  • UL - Underwriters Laboratories
  • MSS - Manufacturers Standardization Society of the
  • Valve and Fining Industry
  • NFPA 54 - National Fuel Gas Code
  • SBCCI - Standard Gas Code
  • IFGC - International Fuel Gas Code
  • ADA - Americans with Disabilities Act

Energy Conservation

Higher energy prices have increased awareness of energy conservation opportunities. Energy is one of the single largest controllable operating expenses for most businesses. However, many do not invest in energy conservation because they do not understand the financial costs and benefits of implementing or upgrading their facilities. Maffett Loftis Engineering specializes in identifying, evaluating, and designing projects that reduce energy expense and generate compelling financial paybacks for our clients. Maffett Loftis Engineering stays abreast of the latest advances in efficient technologies and uses them to engineer top-quality projects.