The evolution of home performance HVAC—from equipment-focused solutions to data-driven load reduction and verified performance.
Introduction
Founding Shareholder Jeremy Begley wrote the following piece back in 2012 as a lead-in to the ACCA National Conference, during a time when he owned and operated the home performance contracting company Cincinnati Energy Solutions.
This article explores how home performance HVAC has evolved from early concepts into today’s data-driven Permanent Load Reduction approach.
At that point, the residential HVAC industry was just beginning to feel the pressure of change—tightening energy codes, early “green building” momentum, and a growing awareness that comfort problems weren’t always equipment problems.
What’s interesting is how much of this still holds true today.
As you read through this original article, you’ll notice updated thoughts woven throughout—not to rewrite the past, but to show how home performance HVAC has evolved into what we now recognize as Permanent Load Reduction and performance-based HVAC design.
The language has changed. The tools have improved. The expectations are higher.
But the core problem?
That hasn’t changed nearly as much as it should have.
Home Performance HVAC Then vs Now
The Industry Shift That Started It All
We stand here today more hopeful than ever before …………….
.As the once stagnate residential heating and air conditioning industry begins a much needed evolutionary trend toward a significant metamorphose homeowners may first be confused and hesitate to play.
— Today’s Insight —
That hesitation hasn’t gone away—it’s just evolved. Today it shows up as skepticism. Homeowners have been sold a lot of “solutions” that never actually solved anything.
The trends in residential construction continue to swim towards “the green home” concept whether it is the adoption of stricter energy efficiency standards in the building code or local tax incentives to build energy efficient or otherwise “green homes”.
— Today’s Insight —
What felt like a trend then is now the direction of home performance HVAC—driven by code, electrification, and performance expectations.
From Efficiency to Measurable Performance
What happens in new construction often influences what owners of existing homes spend money on when upgrading their current castle.
This coupled with the millions of dollars that has been pumped into creating a market for increasing the energy efficiency or more importantly the “performance” of the home has created the need for the HVAC industry to change the way they do business.
— Today’s Insight —
Today, we measure that “performance” instead of just talking about it.
This will be your proverbial separating of the men from the boys.
— Today’s Insight —
Now it’s separating contractors who understand load and building science from those still just swapping equipment.
Defining Home Performance HVAC
Let me stop here for some quick definitions.
Energy Efficiency upgrades-Single or multiple retrofit measures that increase the energy efficiency of your home. This can be anything from changing to a more efficient light bulb to installing a new ultrahigh efficiency heating and cooling system.
Home Performance-A holistic approach to increasing the comfort, health and energy efficiency of a home. The home performance approach looks at the house as a system and diagnoses it needs based on all components affecting the other.
This approach gets to the root comfort issues while increasing efficiency and ensuring the home operates as healthy as possible.
This replaces a single solution based on what product the evaluator sells, which may or may not address the actual problem.
— Today’s Insight —
That idea—that the house is a system—is still the dividing line in home performance HVAC. Now we prove it with data.
This process usually starts with a comprehensive home energy assessment.
Why Home Performance HVAC Contractors Should Care
The Problem HVAC Keeps Missing
Consider this real world example.
A homeowner had a home built about ten years ago. Since the very first year they lived in the home one particular room has been almost unbearably uncomfortable in both seasons—very cold in the winter and very hot in the summer.
Through the years they repeatedly called various HVAC companies to evaluate the problem and were given many solutions.
These included increasing airflow, balancing ducts, zoning the home, and replacing their system with higher efficiency equipment.
— Today’s Insight —
The only thing that’s changed today is the price tag—and now it’s inverter systems instead of two-stage equipment.
None of these high dollar solutions solved the problem.
— Today’s Insight —
Because none of them were solving the actual problem.
The Real Diagnosis
Eventually, they scheduled a home energy audit.
The assessment revealed:
- An uninsulated attic pocket
- A floor exposed to ambient air
- Significant air leakage
Essentially, the master bedroom functioned like a screened porch.
— Today’s Insight —
In modern home performance HVAC terms, that’s infiltration load and thermal boundary failure—not an equipment issue.
After correcting these issues, the comfort problems were resolved.
However, the homeowner lost confidence in the HVAC industry.
— Today’s Insight —
And that’s the real cost—lost trust.
Why This Still Matters Today
This is not an isolated incident.
It still happens every day.
Many contractors hesitate to adopt home performance HVAC because:
- It requires investment
- It requires training
- It changes the business model
The solution is no longer “what you’re selling that day.”
— Today’s Insight —
That’s still the hardest shift for the industry.
How Home Performance HVAC Became Permanent Load Reduction
Lets face it, as an industry they are not hurting for new business.
Real permanent solutions are better for business than sales.
— Today’s Insight —
This is where home performance HVAC evolved into Permanent Load Reduction. Solving the load first is what makes everything else work.
Taking a holistic approach allows the equipment being installed to do its job easier and better.
— Today’s Insight —
This is no longer optional. Home performance HVAC now requires measured, verified outcomes—not assumptions.
Why Should You Consider Home Performance HVAC Assessments?
If you’re looking for a way to reduce your energy costs or cut down on your home’s energy consumption, then consider having an energy assessment conducted in your home.
— Today’s Insight —
What used to be called a “home energy audit” was often a snapshot.
Today, within home performance HVAC, it should function as a PLR Inspection—a structured process prepared by a Certified System Advisor (CSA) using LiDAR-based data capture and load calculation software.
We’re no longer guessing.
We’re measuring the load, reducing it on paper, and verifying it in the field using the Permanent Load Reduction Verified™ methodology.
Because if you’re not quantifying the load…
You’re still just selling equipment.
• Find out how energy efficient your home is.
A home energy audit can give you a feel for your home’s energy consumption and how improvements might impact usage.
— Today’s Insight —
In modern home performance HVAC, we don’t just estimate—we calculate and verify.
• Ensure your home is a safe and healthy place to live.
Ventilation, combustion safety, and pressure relationships are all evaluated.
— Today’s Insight —
Today, home performance HVAC includes full indoor air quality evaluation—not just safety, but long-term health and performance.
• Make your home a more comfortable, cheaper place to live.
Improvements such as duct sealing, insulation upgrades, and system changes can improve comfort and efficiency.
— Today’s Insight —
The order matters: in home performance HVAC, you fix the load first… then let the equipment do its job.
Closing Thought
What started as home performance HVAC has evolved.
Today, we don’t just identify problems—we quantify them, reduce them, and verify the outcome.
Because at the end of the day:
Equipment doesn’t fix bad loads.
Bad loads break good equipment.
Industry References
- ACCA Manual J & S: https://www.acca.org
- U.S. DOE Home Energy Audits: https://www.energy.gov
- ASHRAE 62.2 Ventilation Standard: https://www.ashrae.org
