Engineering Case Studies

Data-driven solutions with documented results. Every project measured, every outcome verified.

4.9 Stars(850+ Reviews)

Licensed & Insured

15+ Years Experience

We believe in transparency and accountability. Every project we undertake is documented with before-and-after measurements. These case studies demonstrate our engineering methodology and the real-world results our clients achieve.

CASE #001San Bruno Hills • 2024

Peninsula Home Efficiency Retrofit

!Challenge

A 2,400 sq ft home built in 1978 with original HVAC equipment consuming excessive energy. The homeowner's monthly bills averaged $387 during peak summer months.

?Engineering Solution

Complete system analysis revealed the existing 8 SEER unit was operating at only 62% efficiency due to refrigerant leaks and compressor degradation. We performed Manual J load calculations and determined the home was over-sized by 1.5 tons.

Key Metrics

18,000

BTU/hr Reduction

+162%

Efficiency Gain

2.4 tons/yr

Carbon Reduction

"The data-driven approach convinced me. They showed me exactly what was wrong and what the fix would achieve. The results matched their projections perfectly."

Measured Results

SEER Before8

SEER After21

Energy Savings47%

Monthly Savings$182

Payback Period4.2 years

Project Duration

2 days

CASE #002San Bruno Business Park • 2024

Commercial Building Diagnostic Victory

!Challenge

A 15,000 sq ft commercial space with persistent hot spots and tenant complaints. Previous contractors had replaced the compressor twice without solving the issue.

?Engineering Solution

Our thermal imaging survey revealed significant ductwork degradation and air balancing issues. CFM measurements showed 40% airflow reduction to the problem zones. We redesigned the duct system and implemented VAV controls.

Key Metrics

-8°F

Temperature Variance

+45%

Airflow Improvement

Tenant Complaints

"Two other companies couldn't figure it out. San Bruno HVAC Pros came in with their diagnostic equipment and found the real problem in two hours."

Measured Results

SEER Before12

SEER After18

Energy Savings33%

Monthly Savings$847

Payback Period2.8 years

Project Duration

5 days

CASE #003Millbrae Adjacent • 2023

Gas-to-Heat-Pump Conversion Analysis

!Challenge

Homeowner wanted to electrify their home but was concerned about heat pump performance during winter months. They needed data to make an informed decision.

?Engineering Solution

We conducted a comprehensive climate analysis using 10 years of local weather data. Our calculations showed a heat pump with 10 HSPF rating would outperform the existing 80 AFUE furnace for 94% of heating hours annually.

Key Metrics

3.2

COP Average

100%

Gas Eliminated

4.1 tons/yr

Carbon Savings

"The engineering analysis gave me confidence. They showed me exactly how many days the heat pump would use backup heat and what it would cost. No surprises."

Measured Results

SEER Before13

SEER After22

Energy Savings52%

Monthly Savings$234

Payback Period5.1 years

Project Duration

3 days

CASE #004San Bruno • 2024

Multi-Zone Performance Optimization

!Challenge

A two-story home with a single-zone system causing 12°F temperature differential between floors. The upstairs bedrooms were consistently uncomfortable.

?Engineering Solution

We installed a smart zoning system with automated dampers and individual room sensors. Our BTU allocation analysis optimized airflow distribution based on room size, orientation, and usage patterns.

Key Metrics

2°F

Temp Variance

97%

Comfort Score

18%

Runtime Reduction

"Same equipment, completely different comfort. The zoning system they designed eliminated our hot/cold problem entirely."

Measured Results

SEER Before14

SEER After14

Energy Savings23%

Monthly Savings$67

Payback Period3.4 years

Project Duration

1 day

Want Similar Results?

Our engineering team can analyze your system and provide a detailed efficiency report with projected savings. Data-driven recommendations, measurable results.

Request System Analysis (650) 360-9230

Ready for Expert HVAC Service?

San Bruno HVAC Pros is standing by to help with all your heating and cooling needs.

Call (650) 360-9230 Book Service

Same-day service available • No overtime charges • 100% Satisfaction Guaranteed