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Mechanical Engineer & Energy Efficiency Consultant
Charlie McCann combines mechanical engineering expertise with practical home improvement guidance, specializing in the technical analysis of residential systems. With 18 years of experience in HVAC design and energy efficiency consulting, he translates complex technical specifications into actionable homeowner decisions.
Charlie McCann combines mechanical engineering expertise with practical home improvement guidance, specializing in the technical analysis of residential systems. With 18 years of experience in HVAC design and energy efficiency consulting, he translates complex technical specifications into actionable homeowner decisions.
Charlie's approach centers on systems thinking, analyzing how heating, cooling, insulation, and ventilation work together across different climate zones. His research-driven articles break down efficiency ratings (SEER, AFUE, HSPF), explain load calculations, and compare performance metrics so homeowners understand the "why" behind equipment recommendations.
As a certified energy auditor and building performance analyst, Charlie has evaluated thousands of homes across all DOE climate zones. He understands how regional factors like heating degree days, humidity levels, and local building codes affect system selection and long-term performance. His technical deep-dives help homeowners make informed decisions based on quantifiable data rather than sales pitches.
Charlie holds certifications from ASHRAE and the Building Performance Institute. He regularly collaborates with mechanical engineers, energy modelers, and specialized contractors to ensure his recommendations reflect current industry standards and emerging technologies.
Routine spring inspections of your home's exterior can identify water intrusion, grading problems, and material wear before they lead to $10,000 in repairs. From evaluating roofs and gutters to assessing foundations and seals, these checks safeguard structural integrity, boost energy efficiency, and preserve your property's value over time.
Starting in 2025, certified engineered flood vents become mandatory for insurance in flood zones. These devices equalize water pressure to safeguard foundations and cut premiums by up to 40 percent. Homeowners gain practical guidance on selecting, installing, and maintaining vents for compliance and resilience.
Explore the differences between prefab and custom granny pods in terms of cost, setup speed, and ROI. Prefab options provide quick assembly and reduced initial costs, whereas custom designs offer personalization and enhanced property value. Factors like energy performance, local climate, and upkeep guide families toward the right choice for sustainable living in 2025.
