Comfort Ready Home

Portland, OR - NW Energy Coalition Clean & Affordable Energy Conference
2025-12-03 08:00 - 19:00 (America/Los_Angeles) | Portland State University
NW Energy Coalition Clean & Affordable Energy Conference

Join utility leaders, policymakers, advocates, and energy experts from across the region to explore solutions for a reliable, equitable, and decarbonized energy future. This year’s conference will dive into pressing challenges and opportunities in the Northwest’s energy transition. You will:

Explore how to meet rapidly growing electricity demand while maintaining reliability, protecting affordability, and achieving carbon reduction targets
Examine strategies for strengthening community and utility resilience in the face of extreme weather and wildfire risks, with a focus on protecting public health and advancing local energy solutions
Share insights into the latest research and innovations in transmission planning, from efficiency upgrades to new line proposals, and the vital role of state and Tribal leadership in shaping these efforts from the start

Learn more.
Location
Portland State University
1825 SW Broadway
Portland, OR 97201
Register Today

Bellingham - Building Science Principles
2025-12-04 08:30 - 17:00 | Building Performance Center, 3406 Redwood Ave., Bellingham, WA, 98225
This Building Science Principles (formerly Introduction to Weatherization and Building Science) course is a 1-day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction referencing the Building Performance Institute’s Building Science Principles Reference Guide.
Resources:

BPI Building Science Principles Guide – ($$ – provided at no cost to WA State Wx Agency staff during training)

NREL Standard Work Specifications

Course Content & Objectives:

Describe both the background of weatherization and key aspects of the weatherization process

Identify the types of energy movement and describe how they operate in the home

Summarize building science and describe pressure and thermal concepts

Describe how a house functions as a system of systems

Identify mechanical systems and describe their purpose and basic operation

Describe the audit process and recognize the required data for energy modeling

Identify appropriate weatherization measures based on Washington state guidelines
Perform a basic blower door test and describe the basics of combustion safety testing

CLICK HERE TO REGISTER.

Webinar - Building Science Principles
2026-01-06 08:30 - 17:00 | Building Performance Center, 3406 Redwood Ave., Bellingham, WA, 98225
ONLINE Building Science Principles (D956)

CEUs: 6.5
IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles
Course Description:
This Building Science Principles course is a 1-day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction referencing the Building Performance Institute’s Building Science Principles Reference Guide.
It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.
Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website
Resources:

BPI Building Science Principles Guide – ($$)

NREL Standard Work Specifications

Course Content & Objectives:

Describe both the background of weatherization and key aspects of the weatherization process

Identify the types of energy movement and describe how they operate in the home

Summarize building science and describe pressure and thermal concepts

Describe how a house functions as a system of systems

Identify mechanical systems and describe their purpose and basic operation

Describe the audit process and recognize the required data for energy modeling

Identify appropriate weatherization measures based on Washington state guidelines

Perform a basic blower door test and describe the basics of combustion safety testing

REGISTER HERE

Webinar - Filtering Reality in HVAC Filtration
2026-01-07 09:00 - 10:00
Filtering Reality in HVAC Filtration
Wednesday, January 7 | 12:00 – 1:00 PM ET

An ACCA Codes & Coffee Webinar

Air filters often claim to solve a myriad of problems related to indoor air quality. What is true? What is hyperbole? What are some unintended consequences of “good” filters?
Topics to be covered:

How much filtration do you really need? MERV 11?
What is going on in “the industry?”
ASHRAE 62.2 – What is adopted by code? Is it enough?
What are the barriers to good filtration?
Code is the minimum. Is this good enough?
What about wild fires and other pollutants?

Join our host David Bixby, ACCA manager of codes, and our panel of experts below. We’re going to discuss factors when choosing the right filter, MERV ratings, HEPA, and strategies for filters with high resistance.
Ed Janowiak, manager of HVACR design education, ACCA
Nick Agopian, President, Reviveaire LLC
George Laurito, District Sales Manager, AprilAire

REGISTER HERE

Virtual Seminar - Building Science Fundamentals
2026-01-13 13:00 - 17:00
American Institute of Architects
Building Science Fundamentals

AVAILABLE: Live Virtual Seminar
January 13 , January 15 , January 20 , January 22
16 AIA CEU credits

American Institute of Architects (AIA)
16 LU|HSW

Register Now

Price: $595.00
Limited Number of Spots

Building Science Fundamentals is a LIVE! virtual seminar that teaches the basic knowledge needed to design and build durable, energy-efficient, affordable, and healthy buildings. Our past registrants have benefitted tremendously from the interactive sessions with Dr. Lstiburek where questions are encouraged. Because of that, we limit attendance to 50 or so. Each $595.00 series consists of 4 afternoons of instruction. Upon completion of the seminar, members of the American Institute of Architects (AIA) will receive 16 LU|HSW posted directly to the AIA Provider website.
The time for the sessions will be from 1:00-5:00 pm EST.
Dr. Joseph Lstiburek will discuss building science principles (such as the control of heat, air, and moisture and IAQ) and show you how to apply them to low-energy enclosure design, advanced HVAC systems, forensic investigations, and the repair and retrofit of existing buildings.
The Fundamentals class has been attended by thousands of builders, architects, engineers, building science consultants, building code officials, facility managers, building product manufacturers, and government officials.

Agenda

Session One
1:00 pm – 5:00 pm

Session Two
1:00 pm – 5:00 pm

Environmental Separation
The Myth of the Dew Point

Definition of a Building
Roofs Vented and Unvented

The Effect of Climate
Hygric Buoyancy

The Perfect Wall
Ice Dams

The Water Molecule
Basements

Relative Humidity and Vapor Pressure
Crawlspaces Vented and Unvented

Air Flow and Vapor Diffusion
Slabs and Flooring

Rain

Capillarity

Session Three
1:00 pm – 5:00 pm

Session Four
1:00 pm – 5:00 pm

Stucco Failures
Retrofits

Pressure and IAQ
Mass Buildings

Buildings as 3-D Airflow Networks
Freeze Thaw

Controlling Pressures and Pathways
Interior Foundation Retrofits

Stack Effect and Compartmentalization
Historic Building Limitations

HVAC
Frame Buildings

Part Load and Humidity Control
Deep Energy Retrofits

Central Systems vs. Distributed Systems

REGISTER HERE

Webinar - Becoming a Building Science Expert
2026-01-20 08:30 - 11:00
Becoming a Building Science Expert | January 20, 2026
8:30 AM to 11:00 AM MST | 6:00 PM to 8:30 PM MST
Discover the fundamentals of building science and how buildings function as interconnected systems. This training equips designers, builders, and inspectors with essential knowledge to improve energy efficiency, comfort, durability, and safety in homes.
REGISTER HERE

Webinar - Maximizing Performance with Unvented Attics
2026-01-27 08:30 - 11:00
Maximizing Performance with Unvented Attics | January 27, 2026
8:30 AM to 11:00 AM MST | 6:00 PM to 8:30 PM MST
Learn actionable insights into insulation options, design strategies, energy code requirements, and best practices for putting HVAC ducts “inside conditioned space” in order to maximize the energy efficiency, comfort, and durability of homes. This session unpacks the benefits of building with ducts inside a conditioned space, with particular emphasis on the most popular way to accomplish this, building an unvented attic and incorporating ducts inside the thermal envelope.
REGISTER HERE

Webinar - Today’s Heat Pump Water Heaters: Installation, Capabilities & Business Growth Opportunities
2026-01-28 07:30 - 10:00
Today’s Heat Pump Water Heaters: Installation, Capabilities & Business Growth Opportunities — Part 2!

Hear from ENERGY STAR® Manufacturer’s Action Council (ESMAC) and leading HPWH Manufacturers themselves. Learn about City Light HPWH midstream incentives and upcoming marketing campaign to grow your business.
DESCRIPTION

Learn about utility program benefits, get technical support, and access marketing materials to grow your HPWH business.
Gain practical insights and resources to succeed in the HPWH market. It’s a valuable chance to connect, learn, and grow!

This webinar will cover information for both the seasoned pro installer or someone new to heat pump water heaters.
Topics Covered in this Session:

Key differences between standard water heaters and heat pump water heaters
Benefits of heat pump water heaters
Installation best practices such as sizing considerations, suitable installation locations, and requirements for airflow, exhaust, and drainage
Thermostatic mixing valve use and water temperature
Programming/operating modes
Customer education — how to use, what to expect, concerns about recovery time

HPWHs offer significant savings for customers — register for the webinar and hear directly from leading manufacturers, including:
American Standard
Bosch
Eco-Logical
GE
Eco2 Systems
PLUS: We’re inviting contractors to register today and take full advantage of our upcoming marketing campaign.
Our direct-to-consumer marketing push to 200,000 + City Light electric heat customers will include:

Email newsletters
Social media posts
Listed on the Hot Water Solutions Installer Finder

To boost reach, we are providing the following free marketing tools to participating contractors, emailed directly to participants:

Promotional postcard
Social media post including copy and graphics

Register

Wednesday, January 28, 20267:30 AM to 10:00 AM

Seattle City Light
PNW Midstream Program
HPWH manufacturers

The link above takes you away from the Lighting Design Lab site to a registration page through GoToWebinar. Please email LightingDesignLab@seattle.gov with questions or concerns.

Webinar - Building Science Principles
2026-02-10 08:30 - 17:00 | Building Performance Center, 3406 Redwood Ave., Bellingham, WA, 98225
ONLINE Building Science Principles (E088)
Overview

This ONLINE Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:
There are three different Ticket Types. You will need to choose the appropriate one in order to register.
WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:
Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.
WA State Wx Agency-Associated Contractor:
Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.
General Public/Non-Associated Contractor:
Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).
Building Science Principles
IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles
BPI CEUs: 3.25
Course Description:
This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.
It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.
Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website
Resources:
• BPI Building Science Principles Guide ($$)
• NREL Standard Work Specifications
Course Content & Objectives:
• Describe both the background and major principles of weatherization
• Describe interrelation and affects of building science on “house as a system”
• Describe heat transfer and control of heat movement
• Describe air movement and identify processes of air sealing
• Identify moisture movement, it’s effect on a home, and control options
• Identify mechanical systems and their main purposes
• Summarize energy audits including assessing baseload usage, doors, windows, and renewables
• Describe the audit process and recognize the required importance and data for energy modeling
• Identify appropriate weatherization measures based on Washington state guidelines
Course Requirements:
Technology
• Ability to download documents or access documents as needed
• BPC provided online Learning Management System – Moodle link to be sent by BPC
Expectation of attendance and class participation
Prerequisites and Work Experience:
• None necessary
Assessments and Grading:
All assessments will be multiple choice question style
• In-progress assessment activities throughout
• One final assessment
• Candidate must achieve a 70% or higher to pass the final assessment
REGISTER HERE

Webinar - Energy Efficiency Products Decoded (Part 1) - Building Envelope
2026-02-12 08:30 - 11:00
Energy Efficiency Products Decoded (Part 1) – Building Envelope | February 12, 2026
8:30 AM to 11:00 AM PDT | 6:00 PM to 8:30 PM MST
Understand how to optimize the building envelope, the critical barrier controlling heat flow in and out of homes, by exploring popular and innovative products and materials, learning about their evolution, and discovering how to maximize energy efficiency and durability while balancing performance with practical design choices.
REGISTER HERE

Webinar - Measure Overview HVAC
2026-02-17 08:30 - 09:30
Join Energy Trust for this free introductory training on the basics of HVAC. This presentation will cover the types of HVAC within the Home Retrofit Program, how they work, and considerations for replacement and installation. This training is designed for trade allies, community partners, or anyone interested in a basic understanding of HVAC.

Details
Date: February 17
Time: 8:30 am – 9:30 am
Cost: Free
Event Category: Heating + Cooling
Website: clearesult.zoom.us/meeting/register/r5WPpi_rTJqolGCsUUkNhA

REGISTER HERE

Webinar - Energy Efficiency Products Decoded (Part 2) - Building Systems
2026-02-17 08:30 - 11:00
Energy Efficiency Products Decoded (Part 2) – Building Systems | February 17, 2026
8:30 AM to 11:00 AM MST | 6:00 PM to 8:30 PM MST
This session dives into the systems that power our homes—HVAC, water, lighting, appliances, solar, battery storage, and more—revealing how to optimize them for maximum energy efficiency, comfort, and durability. You will explore innovative products, practical solutions, and emerging technologies to improve performance, save resources, and enhance sustainability in everyday living.
REGISTER HERE

Webinar - HVACR Market Forecast: Survive and Thrive!
2026-02-18 12:00 - 13:00
HVACR Market Forecast: Survive and Thrive!
Wednesday, February 18 | 12:00 – 1:00 PM ET

ACCA is pleased and honored to provide the annual HVACR market forecast with special guest Tim Fisher, director of market intelligence, Heating, Air-Conditioning & Refrigeration Distributors (HARDI). Tim oversees HARDI research and analysis of HVACR market trends – particularly those affecting wholesale distribution. Obviously, it’s been a wild 2025 with the HFC phase-down, R-454B shortage, the impacts of tariffs on the HVAC industry, and market repercussions from the heydays of 2020 – 2024.
How should HVAC professionals plan for 2026?
What shifts in the market will impact the HVAC industry and professional businesses?
Join us for this informative and free webinar.

Register for the free webinar

Webinar - Measure Overview Weatherization
2026-02-24 08:30 - 09:30
Join Energy Trust for this free introductory training on the basics of Weatherization. This presentation will cover the types of weatherization materials within the Home Retrofit Program, as well as considerations for replacement and installation. This training is designed for trade allies, community partners, or anyone interested in a basic understanding of home weatherization.

Details
Date: February 24
Time: 8:30 am – 9:30 am
Cost: Free
Event Category: Weatherization
Event Tags:Training + EventsWebsite: clearesult.zoom.us/meeting/register/qxbHSl1NQ0yq4yHHX8yQhw
REGISTER HERE

Eugene, OR - Contractor Training - HPWH Opportunities + Installation Considerations
2026-02-26 09:00 - 12:00 | Lane Events Center
Heat Pump Water Heater Workshop
Join Comfort Ready Home and Eugene Water & Electric Board on February 26th for a FREE heat pump (hybrid) water heater training.
The training will cover an overview of HPWHs, including: available rebates and promotions, installation best practices, Heat Pump Water Heater technology overview, advantages, Q&A.
Participating Contractors will be eligible for 2.0 OR BCD or CCB CEUs.
Breakfast is included.
Location: Lane Events Center, Meeting Room 1, 796 W 13th Ave, Eugene, OR 97402
Date and time: Thu, Feb 26, 2026 9:00 AM – 12:00 PM
REGISTER HERE

Victor, MT - Contractor Training - HPWH Opportunities + Installation Considerations
2026-02-26 11:00 - 13:00 | Ravalli Electric Cooperative
CRH – Ravalli HPWH Training Flyer
Join us for a Heat Pump Water Heater Lunch and
Learn at Ravalli Electric Cooperative.
The training will
cover an overview of HPWHs, including:
Introduction to Heat Pump Water Heaters
Installation Best Practices
Efficiency
Incentives
Q&A
2 hours Continuing Education Units are available for
Journeyman and Master plumbers.
Date:
Thursday
February 26, 2026
Time:
11 a.m. – 1 p.m.
Location:
Ravalli Electric
Cooperative
143 Bell Crossing W,
Victor, MT 59875

Webinar - Building Science Principles
2026-03-05 08:30 - 17:00 | Building Performance Center, 3406 Redwood Ave., Bellingham, WA, 98225
ONLINE Building Science Principles (E092)
Overview

This ONLINE Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:
There are three different Ticket Types. You will need to choose the appropriate one in order to register.
WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:
Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.
WA State Wx Agency-Associated Contractor:
Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.
General Public/Non-Associated Contractor:
Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).
Building Science Principles
IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles
BPI CEUs: 3.25
Course Description:
This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.
It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.
Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website
Resources:
• BPI Building Science Principles Guide ($$)
• NREL Standard Work Specifications
Course Content & Objectives:
• Describe both the background and major principles of weatherization
• Describe interrelation and affects of building science on “house as a system”
• Describe heat transfer and control of heat movement
• Describe air movement and identify processes of air sealing
• Identify moisture movement, it’s effect on a home, and control options
• Identify mechanical systems and their main purposes
• Summarize energy audits including assessing baseload usage, doors, windows, and renewables
• Describe the audit process and recognize the required importance and data for energy modeling
• Identify appropriate weatherization measures based on Washington state guidelines
Course Requirements:
Technology
• Ability to download documents or access documents as needed
• BPC provided online Learning Management System – Moodle link to be sent by BPC
Expectation of attendance and class participation
Prerequisites and Work Experience:
• None necessary
Assessments and Grading:
All assessments will be multiple choice question style
• In-progress assessment activities throughout
• One final assessment
• Candidate must achieve a 70% or higher to pass the final assessment
REGISTER HERE

Bozeman, MT - Basic Furnace Course
2026-03-09 13:00 - 17:00
Basic Furnace
March 9 – 12, 2026

751 Osterman Dr, Bozeman, MT 59715, USA

Course Description
For weatherization employees who need an understanding of furnace fundamentals. Includes classroom and hands-on technical training. Because attendance is limited registration will be on a first-come, first-served basis.
Basic Furnace teaches students how to identify, maintain, and trouble shoot the most common heating and air conditioning systems encountered while performing weatherization measures. Students leave with an understanding of ventilation requirements for combustion appliances, as well as a firm grasp of the health and safety implications of improper installation, maintenance, and use. The course follows the Department for Energy’s standardized curriculum for Heating Systems for Energy Auditors/Inspectors and aligns with HVAC tasks under the NREL Job Task Analyses for Energy Auditor and Quality Control Inspector. The structure of the course includes lecture, dialogue, and practical experience through hands-on skill sets.
Learn more about this course
Course Schedule
Day 1 1:00-5:00 p.m.
Day 2 8:30 a.m. – 5:00 p.m.
Day 3 8:30 a.m. – 5:00 p.m.
Day 4 8:30 a.m. – 12:00 p.m.
Course Fees

$725 for the public
Free for associates of the Montana Weatherization Workforce

REGISTER FOR THIS COURSE HERE
Please email classes@weatherization.org or call 406-586-0070 with any questions.

weatherizationtraining@gmail.com

Virtual Seminar - Building Science Fundamentals
2026-03-10 13:00 - 17:00
American Institute of Architects
Building Science Fundamentals

AVAILABLE: Live Virtual Seminar
March 10 , March 12 , March 17 , March 19
16 AIA CEU credits

American Institute of Architects (AIA)
16 LU|HSW

Register Now

Price: $595.00
Limited Number of Spots

Building Science Fundamentals is a LIVE! virtual seminar that teaches the basic knowledge needed to design and build durable, energy-efficient, affordable, and healthy buildings. Our past registrants have benefitted tremendously from the interactive sessions with Dr. Lstiburek where questions are encouraged. Because of that, we limit attendance to 50 or so. Each $595.00 series consists of 4 afternoons of instruction. Upon completion of the seminar, members of the American Institute of Architects (AIA) will receive 16 LU|HSW posted directly to the AIA Provider website.
The time for the sessions will be from 1:00-5:00 pm EST.
Dr. Joseph Lstiburek will discuss building science principles (such as the control of heat, air, and moisture and IAQ) and show you how to apply them to low-energy enclosure design, advanced HVAC systems, forensic investigations, and the repair and retrofit of existing buildings.
The Fundamentals class has been attended by thousands of builders, architects, engineers, building science consultants, building code officials, facility managers, building product manufacturers, and government officials.

Agenda

Session One
1:00 pm – 5:00 pm

Session Two
1:00 pm – 5:00 pm

Environmental Separation
The Myth of the Dew Point

Definition of a Building
Roofs Vented and Unvented

The Effect of Climate
Hygric Buoyancy

The Perfect Wall
Ice Dams

The Water Molecule
Basements

Relative Humidity and Vapor Pressure
Crawlspaces Vented and Unvented

Air Flow and Vapor Diffusion
Slabs and Flooring

Rain

Capillarity

Session Three
1:00 pm – 5:00 pm

Session Four
1:00 pm – 5:00 pm

Stucco Failures
Retrofits

Pressure and IAQ
Mass Buildings

Buildings as 3-D Airflow Networks
Freeze Thaw

Controlling Pressures and Pathways
Interior Foundation Retrofits

Stack Effect and Compartmentalization
Historic Building Limitations

HVAC
Frame Buildings

Part Load and Humidity Control
Deep Energy Retrofits

Central Systems vs. Distributed Systems

REGISTER HERE

Montana Department of Labor & Industry Building Codes Education Conference
2026-03-30
This conference is presented for design professionals, building code officials, fire officials, residential builders, commercial contractors, inspectors, and other professionals interested in learning about building codes and other related topics. All courses offered are approved for self-reporting continuing education credits.
Learn more.
Location
Hilton Garden Inn
3720 N Reserve St
Missoula, MT 59808
Register Today

Bellingham, WA - Building Science Principles
2026-04-14 08:30 - 17:00 | Building Performance Center, 3406 Redwood Ave., Bellingham, WA, 98225
IN-PERSON Building Science Principles (E148)

ByBuilding Performance Center

Follow

Building Performance CenterBellingham, WA
Tuesday, Apr 14 from 8:30 am to 5 pm PDT

Overview

This Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:
There are three different Ticket Types. You will need to choose the appropriate one in order to register.
WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:
Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.
WA State Wx Agency-Associated Contractor:
Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.
General Public/Non-Associated Contractor:
Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).
Building Science Principles
IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles
BPI CEUs: 3.25
Course Description:
This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.
It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.
Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website
Resources:
• BPI Building Science Principles Guide ($$)
• NREL Standard Work Specifications
Course Content & Objectives:
• Describe both the background and major principles of weatherization
• Describe interrelation and affects of building science on “house as a system”
• Describe heat transfer and control of heat movement
• Describe air movement and identify processes of air sealing
• Identify moisture movement, it’s effect on a home, and control options
• Identify mechanical systems and their main purposes
• Summarize energy audits including assessing baseload usage, doors, windows, and renewables
• Describe the audit process and recognize the required importance and data for energy modeling
• Identify appropriate weatherization measures based on Washington state guidelines
Course Requirements:
Technology
• Ability to download documents or access documents as needed
• BPC provided online Learning Management System – Moodle link to be sent by BPC
Expectation of attendance and class participation
Prerequisites and Work Experience:
• None necessary
Assessments and Grading:
All assessments will be multiple choice question style
• In-progress assessment activities throughout
• One final assessment
• Candidate must achieve a 70% or higher to pass the final assessment

CLICK HERE TO REGISTER.

Webinar - Installing Heat Pump Water Heaters in Small Spaces: Lessons from the Amazing Shrinking Room
2026-04-22 14:00 - 16:00
Installing Heat Pump Water Heaters in Small Spaces: Lessons from the Amazing Shrinking Room

Course description

By enrolling in this course, you agree to receive text message course reminders. To opt-out update your profile here or upon receiving your first message you will have the option to opt out by replying “STOP”.
Residential heat pump water heaters (HPWH) are an effective way to reduce energy use, operating costs, and CO2 emissions. Research has shown that the ultimate operating efficiency depends as much on the installation conditions as the equipment selection itself. This course will share what we learned from a series of practical, shrinking room experiments about why, and how much, the installation spaces impact efficiency and, most importantly, practices for successful installations. We will dive into space requirements and venting strategies for heat pump water heaters to enhance both new construction and retrofit installations. The results provide actionable guidance for manufacturers, designers, engineers, installers, and owners. In addition to sharing the results of the laboratory tests, the presentation will also discuss the thermodynamic principles behind them. The session will provide participants with practical guidelines and design tools ready to implement as well as a framework for predicting how different design choices are likely to affect HPWH performance in a given installation space.

Course sessions
1 full online session

Installing Heat Pump Water Heaters in Small Spaces: Lessons from the Amazing Shrinking Room – WEBINAR – April 22, 2026 (2pm – 4pm) PDT

04/22/2026, 02:00 pm – 04:00 pm

(GMT -07:00) America/Los_Angeles

Start date: April 22, 2026 02:00 pm, end date: April 22, 2026 04:00 pm
Time zone: (GMT -07:00) America/Los_Angeles
1 event
Attendance type: Full online
1 Host
Video conference tool: Custom tool
Duration 2 hours

1 event
Full online
1 Host
Custom tool
2h

Installing Heat Pump Water Heaters in Small Spaces: Lessons from the Amazing Shrinking Room – WEBINAR – April 22, 2026 (2pm – 4pm) PDT

Enroll

Course Hosts
1 Host

NS

Nicolas Saroni – PGE Host

Additional information

Instructor Bio

Ben Larson
Ben, founder of Larson Energy Research, is a scientific researcher and consultant with over 15 years professional experience. Ben has a multifaceted professional and academic background covering research design and management, physics, numerical modeling, and emerging technology. He has specialized expertise in heat pump-based appliances and how mechanical systems in a building interact and affect total energy use. His practical experience includes equipment energy use testing, in both the field and lab; developing models to analyze and forecast equipment energy efficiencies; and designing equipment specifications.
Sam Larson
Sam is an associate at Larson Energy Research, managing laboratory and field research on heat pump water heaters and HVAC equipment. He was a contributing author on the “Amazing Shrinking Room” research project and also consults on water heating standards.

Agenda

Introduction and safety message
How the size of the room a HPWH is installed in affects its efficiency
How to improve efficiency in a small space through increased ventilation
How the temperature of exchange air affects ventilation
Comparative advantages of passive convection and forced-air approaches

Objectives

The objective of this course is that at the conclusion, participants will be able to:

Understand how the temperature and flow rate (the thermodynamic principals) of the HPWH thermal resource (the air) effects efficiency
Identify installation locations that are problematic for efficient and effective HPWH operation
Identify at least two techniques for improving installed HPWH efficiency in small spaces
Become facile with altering existing floor plans to accommodate HPWHs in a way that maintains their efficient operation

Audience Level
Introductory

Continuing Education Credits

See below

CABEC
2

Sector
Residential

Electrification
Yes

Keywords
CABEC | Water & Energy | ZNE / Electrification / Decarbonization | Home Performance | HVAC | Commissioning (Cx) | Plumbers / Pipe Fitters | HVAC / Mechanical Contractor | Home Performance Contractor | General Contractor | Builder / Developer – Residential

REGISTER HERE

Bozeman, MT - Healthy Housing Principles
2026-04-27 13:00 - 17:00
Healthy Housing Principles
April 27 – 29, 2026

751 Osterman Dr, Bozeman, MT 59715, USA

notes

Course Description
This in-person course is centered around the BPI Healthy Housing Principles certificate. Students who successfully complete the course will learn how to evaluate residential structures, recognize hazards to human health, and advise occupants on ways to potentially improve health outcomes in their home environment.
The class is appropriate for students with intermediate experience in the weatherization and home performance industries. This course will be presented as a hybrid of class presentations, lab activities, and field visits. Course content, assessments, and follow-on resources will be shared on the Training Center learning management system.
This class will conclude with a proctored examination of the BPI Healthy Housing Principles examination.
Course Schedule
Monday 1-5 p.m.
Tuesday 8:30-5 p.m.
Wednesday 8:30-12 p.m. (exam begins at 10:15 a.m.)
Course Fees

Course Fee: $575 for the general public
HHP BPI Written Exam: $325 for the general public
Free for associates of the Montana Weatherization Workforce

REGISTRATION LINK COMING SOON

Please email classes@weatherization.org or call 406-586-0070 with any questions.
