BPMS Blog

October 14, 2026: Philadelphia launches a municipal energy dashboard, Canada announces an upcoming heat-pump rebate, and Chillventa brings HVAC research into focus.

October 12, 2026: DOE opens a $100 million fellowship pilot, HHS examines LIHEAP weatherization waivers, and Arizona and Hawaiʻi expand efficiency resources and training.

October 9, 2026: Virginia releases $67 million for efficient housing, New York launches grid planning, DOE selects early-career researchers, and ASPECT concept papers are due.

October 7, 2026: EIA’s winter outlook, DOE industrial assessment training, Illinois utility assistance and Michigan’s weatherization outreach.

Duct leakage can waste conditioned air, create comfort problems, alter building pressures, and undermine otherwise efficient HVAC equipment. This professional guide explains duct blaster testing, CFM25, total duct leakage versus leakage to outdoors, normalized leakage calculations, current ENERGY STAR duct-leakage criteria, duct repair priorities, post-repair verification, and how duct diagnostics fit into a complete home-performance workflow.

Air sealing can reduce uncontrolled leakage, improve comfort, and lower heating and cooling loads—but a tighter building still needs deliberate control of moisture, pollutants, combustion safety, and outdoor-air exchange. This guide explains how whole-house ventilation, kitchen and bath exhaust, HRVs, ERVs, filtration, blower-door testing, and verification fit into a professional home-performance workflow.

A successful residential solar project starts before panels are selected. Learn how energy audits, electricity-use analysis, roof condition, shading, orientation, future electrification loads, electrical capacity, utility rates, storage, and the post-2025 federal tax-credit landscape should shape solar planning in 2026.

Leaky, damaged, or poorly connected ductwork can waste conditioned air before it reaches the rooms it is supposed to serve. Learn how duct inspection, leakage testing, airflow evaluation, sealing, insulation, and post-repair verification fit into a professional building-performance workflow—and why HVAC equipment should not automatically receive the blame for every comfort problem.

Air-source heat pumps can provide efficient heating and cooling, but successful electrification depends on much more than selecting efficient equipment. Learn how building-envelope performance, load calculations, cold-climate capacity, duct systems, controls, electrical planning, commissioning, and energy-audit data should work together.

Blower-door testing turns invisible building-envelope leakage into measurable information. Learn what CFM50 and ACH50 mean, how professionals use pressure testing to investigate leakage pathways, why ventilation and combustion safety matter, and how pre- and post-work testing can strengthen weatherization and building-performance projects. Cover image URL

Learn how to perform a residential combustion analysis on furnaces and boilers, understand O₂, CO₂, carbon monoxide, stack temperature, draft, and combustion efficiency, identify conditions that may increase energy consumption, and incorporate combustion testing into a comprehensive home energy audit using BPMS™.

A professional energy audit can generate blower-door measurements, thermal images, HVAC information, building geometry, energy-use history, photographs, envelope observations, and more. Learn how a connected building-performance workflow can transform those individual data points into organized analysis, practical recommendations, WorkScopes, and professional project documentation.

Installing an EV charger is more than mounting equipment on a garage wall. Learn how charging needs, electrical capacity, panel planning, load management, future electrification, solar, and building-performance data can be considered together before a residential Level 2 charging project begins.

A successful heat-pump installation begins long before equipment arrives. Learn how building-envelope conditions, Manual J load calculations, Manual S equipment selection, duct design, electrical capacity, airflow, commissioning, and post-installation verification work together to support comfort and HVAC performance.

Effective air sealing starts with understanding how a building actually leaks. Learn how blower-door testing, CFM50, ACH50, thermal imaging, field investigation, ventilation considerations, WorkScopes, and post-work verification can turn air-leakage measurements into a professional building-performance strategy.

Learn how ASHRAE 62.2 works, how residential ventilation is calculated and measured, how blower-door testing relates to ventilation, and why proper airflow matters for indoor air quality, moisture, health, safety, and energy efficiency.

Home electrification is more than replacing fossil-fuel equipment with electric alternatives. Learn how energy audits, envelope improvements, electrical-capacity planning, HVAC load calculations, heat pumps, EV charging, solar, and connected building-performance data can work together to create an efficient, comfortable, electrification-ready home.

A modern energy audit can produce far more than a checklist. Learn how field documentation, blower-door testing, thermal imaging, LiDAR measurements, HVAC load calculations, building-envelope measurements, and professional reporting can work together to create a more complete picture of building performance—and a clearer path from assessment to improvement.

Building-performance professionals collect information from energy audits, diagnostic testing, thermal imaging, HVAC systems, utility history, building geometry, and field observations. Learn how connecting that information can improve analysis, retrofit planning, project documentation, and verification while reducing fragmented workflows.

Building science is the foundation of energy auditing, home performance, weatherization, and high-performance HVAC. This complete guide explores how heat, air, moisture, pressure, insulation, HVAC systems, ventilation, and the building envelope interact—and how modern diagnostic technology and BPMS™ help professionals turn building science into measurable building performance.