Professional Building Science & HVAC Training
High-performance homes require an expert understanding of the house as a system — air-tightness, moisture control, ventilation, and mechanical performance working together. Ecotech Training covers BPI credentials, heat pump hydronics, IAQ, energy modeling, and deep retrofits.
Exclusive Offer: Use promo code ECOTECH10 at checkout to save 10% on any building science course through our partner HeatSpring.
BPI
Looking for BPI certification paths? Visit our dedicated BPI hub for BSP → BA-T → BA-P roadmaps, workforce stats, exam prep, and credential directories.
Building Science Workforce Outlook
~24k
Active BPI-certified pros nationwide
4–12 wk
Audit backlogs in IRA rebate states
38%
New EA candidates are career switchers
BPI-certified auditors are in high demand as states deploy IRA home rebate programs. Full credential map and career data: BPI Certification Guide 2026. New to the field? Read How to Become an Energy Auditor.
Building Science Training Pathways
Pick the track that matches your role — most professionals combine a BPI credential with technical specialty courses.
Pathway 1
BPI Certification & Energy Auditing
Nationally recognized credentials for residential energy auditing, health-and-safety evaluations, and program QC.
- Building Science Principles (BSP) — knowledge-based entry credential
- Building Analyst Technician (BA-T) — field certification
- Building Analyst Professional (BA-P) — lead auditor credential
- Infiltration & Duct Leakage (IDL) — code-aligned air-tightness testing
- Full BPI hub →
Pathway 2
Heat Pumps & Hydronics
Next-generation mechanical systems for electrification and high-efficiency residential retrofits.
- Air-to-Water Heat Pump Fundamentals — core hydronic heat pump systems
- Cold Climate Heat Pump Assessor — BPI ccASHP credential
- Hydronic Heating & Cooling Applications — advanced system design
- Geothermal Standing Column Well Design — ground-source engineering
Pathway 3
IAQ, Ventilation & Mechanical Compliance
Healthy homes, ventilation standards, and refrigerant compliance for HVAC professionals.
- ASHRAE 62.2 Ventilation — ventilation for tight, high-performance homes
- 7 Steps to Good Indoor Air Quality — IAQ fundamentals
- Healthy Home Evaluator (HHE) — IAQ credential prep
- EPA 608 Technician Certification — refrigerant handling
Pathway 4
Retrofits, Modeling & Advanced Performance
Whole-home performance upgrades and data-driven retrofit scoping.
- Deep Energy Retrofits — beyond standard weatherization
- Energy Modeling for Professionals — retrofit scoping and program compliance
- BPI Envelope Professional — shell-centric diagnostics
Complete Building Science Course Directory
Browse our full catalog. Use code ECOTECH10 at checkout to save 10%.
BPI certification & auditing
BPI Building Science Principles (BSP) Knowledge-based entry · house-as-a-system fundamentals BPI Building Analyst Technician (BA-T) Field certification · blower door, CAZ, whole-home assessment BPI Building Analyst Professional (BA-P) Lead auditor · online written exam after BA-T Infiltration & Duct Leakage (IDL) Standardized air-tightness testing BPI Envelope Professional Shell diagnostics · insulation, air sealing, moisture Healthy Home Evaluator (HHE) IAQ, moisture, and occupant health HEP Quality Control Inspector (QCI) Program QC for weatherization and utility work Building Analyst Certification Package BSP + BA-T + BA-P prep combined
Heat pumps & hydronics
Air-to-Water Heat Pump Fundamentals Core hydronic heat pump systems for residential retrofits Cold Climate Heat Pump Assessor BPI credential · sizing ccASHP in cold climates Hydronic Heating & Cooling Applications Advanced air-to-water system design and integration Geothermal Standing Column Well Design Ground-source system engineering
IAQ, ventilation & mechanical compliance
ASHRAE 62.2 Ventilation for Single-Family Dwellings Ventilation requirements for tight, high-performance homes 7 Steps to Good Indoor Air Quality IAQ fundamentals for auditors and HVAC professionals EPA 608 Technician Certification Refrigerant handling for heat pump work Energy Modeling for Building Science Professionals Modeling tools for retrofit scoping and compliance
Retrofits & advanced performance
Looking for something specific? Use the search tool below this section. For BPI credential paths and exam prep, visit our BPI Certification Hub.
Popular: BA-T · Air-to-Water HP · IDL · ASHRAE 62.2 · Deep Retrofits
Frequently Asked Questions
How do I start a career in energy auditing?
Most professionals begin with the BSP Certificate, then add BA-T for field work. Step-by-step guide: How to Become an Energy Auditor. Avoid common pitfalls with 5 Energy Auditor Mistakes.
Do you offer training for HVAC technicians?
Yes. We cover Air-to-Water Heat Pumps, Cold Climate Heat Pump Assessor, and EPA 608 Certification. Pair mechanical training with ASHRAE 62.2 Ventilation for high-efficiency residential work.
What's the difference between BPI and general building science courses?
BPI courses prepare you for nationally recognized credentials required by utilities and rebate programs. General building science courses (heat pumps, hydronics, modeling, retrofits) build technical depth without a BPI exam. See our BPI hub for credential paths.
What courses cover 2026 code and IRA program requirements?
IDL addresses infiltration testing aligned with building codes. ccASHP Assessor covers electrification sizing. BPI-certified auditors are required for many IRA home rebate programs — see our BPI Certification Guide 2026.
How do I save on enrollment?
Use promo code ECOTECH10 at checkout for 10% off any Ecotech Training course through HeatSpring. Popular starting points: BSP, Air-to-Water HP Fundamentals, and the Analyst Package.
Career Guides & Related Reading
Not sure where to start? We can help.
Most newcomers begin with BSP or Air-to-Water Heat Pump Fundamentals. Use ECOTECH10 for 10% off.
Popular: BA-T · IDL · Deep Retrofits · BPI Hub
Ecotech Training is an independent course provider. Links may include affiliate partnerships through HeatSpring. BPI credentials are issued by the Building Performance Institute — Ecotech Training is not affiliated with BPI.
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