Technical Services

Offering energy modeling, HVAC design, and energy code compliance support in Alabama, Florida, and coastal Mississippi.

As a builder, investor, or homeowner along the Gulf Coast, you need to know how your building’s design and construction affects cost of ownership, comfort, and the health and safety of its occupants. With the right plan and support, buildings can be low cost, efficient, and even net zero.

When you need clear, data-rich answers about your building’s efficiency and performance, Keen Living is here to help with a range of technical services.

Energy Models

Energy models analyze your design under multiple scenarios to help you make informed decisions on efficiency features. By combining model results with onsite verification, clients gain access to tax credits and higher appraisals.

With energy modeling, you can get:

  • Annual Energy Costs

  • Cost Benefit Analysis of Efficiency Measures

  • Access to 45L Tax Credits

  • Access to Inflation Reduction Act (IRA) Incentives

  • Proof of Code Compliance

  • Energy Rating Index (ERI)

  • Home Energy Rating System (HERS) Score

Design an energy efficient building with Keen Living energy models.

HVAC Manual J Calculations

HVAC systems are commonly oversized. This causes humidity and comfort problems. Manual J Calculations are essential to correctly-size your HVAC system, and Keen Living understands the details required for accurate calculations.

Keep equipment costs low and occupants comfortable year-round with Manual J Calculations from Keen Living.

Full HVAC Design with Ventilation

Keen Living offers full HVAC Design services including ventilation and make-up air. This includes Manual J, S, D, and T calculations required by many building codes to ensure peak performance of your HVAC system. 


RESCheck™ helps architects and builders demonstrate energy code compliance, using information about building components to gauge energy use, including: 

  • Building Envelope

  • Insulation Values

  • Mechanicals

  • Lights and Appliances

With RESCheck™, you’ll receive documentation specific to your project for code compliance.

Learn more about RESCheck™ for code compliance.

Performance Testing

Keen Living offers testing that gives you a data-driven understanding of your building’s performance: 

Blower Door and Duct Testing Testing

Duct Envelope Tightness (DET) tests measure air leakage of the building envelope and ductwork. These tests are required in new construction to meet building codes, and to earn the Energy Star and National Green Building Standard certifications.

In existing buildings, DET tests are used to establish a pre-retrofit baseline and to find big leaks that are causing comfort problems, moisture issues, or high energy bills.

Ventilation and Filtration Assessment

A ventilation and filtration assessment is included for all projects pursuing Energy Star and Indoor Air Plus certifications. It’s also a standalone service for clients who want better-than-average indoor air quality, or suspect there’s a problem with their current set-up. Call Keen Living and find out how to make your home healthier.

The certified green building professionals at Keen Living have you covered with a range of technical services. Call 251-279-0395 or contact us online to learn more.


  • BPI Certified Professional
  • ENERGY STAR® Partner
  • Fortified Home Evaluator™

Technical Services

  • Energy Models
  • HVAC Manual J
  • RESCheck™ and Florida R405-2020
  • Blower Door Testing


  • Design Review
  • Construction Strategy
  • Energy Code Compliance
  • Scopes of Work