Featured Blog Posts (749)

3 Issues HVAC contractors Should Know About Impacting Customer Comfort and Health

There is an epidemic of people suffering in many of the 100 million homes across the U.S.  Many of your customers are living in uncomfortable and unhealthy homes, and are wasting money trying to heat and cool their homes.

Even after HVAC contractors have installed higher efficiency, properly sized equipment in their homes, many are still getting call backs from customers because they have rooms and entire homes that remain too hot in the summer and too cold in the winter.  The HVAC…

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Added by Marc Tannenbaum on October 19, 2017 at 11:30am — No Comments

Sizing Solar Space Heating Panels

Solar Space Heating Panels

 USSolarHeating.com
   This article is open to additional information being added later as I can manage the time. I would want to detail as much useful information as possible, however for today what we have here is a good start.


   In this discussion we will be looking at solar space heaters of the air…
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Added by Dannie Jackson on October 7, 2017 at 11:00am — No Comments

Core Heat And Other Concepts









  In some places the use of solar heated liquids from hot water solar panels are used to provide heating for floors which are fitted with tubing in the floor to move the heated liquid through.  Heated liquid from hot water solar panels can also be sent to registers or radiators in remote places in a home such as its core.



  Another innovative way that heated liquids can be used is to move the liquid into a…
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Added by Dannie Jackson on October 9, 2017 at 2:30pm — No Comments

Net-Zero Energy Homes at No Additional Up-front Cost

The U.S. residential real estate market is booming, with new home sales steadily rising over the last few years. In March 2017, over 621,000 new single-family homes were sold at a median sales price of $345,800. Imagine if most of these new home developments were…

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Added by Radhika Lalit on October 11, 2017 at 9:30am — No Comments

MPG for Homes - The Quest for the Best

An mpg-like rating for homes is here. For the first time in history, people can find out the expected energy use of any home in the U.S. This single piece of information conveys helpful insights including the expected cost of maintaining a home, the environmental impact of the home, and a proxy for how comfortable the home is likely to be. This information will become more widely available from more sources as…

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Added by Jacob Corvidae on October 9, 2017 at 4:30pm — No Comments

Tiny House Boom

 
Subtitle: "A Good Way To Introduce Green Building On A Mass Scale"


Here is a tiny house of around 800 square feet that sports some of the better concepts in energy efficiency along with solar heating.  With design devoted to lowering the energy signature of the structure it does not take…
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Added by Dannie Jackson on October 5, 2017 at 10:00am — 3 Comments

Performing an Indoor Air Quality Assessment

Too bad you can't simply whip out your Tricorder to make a quick environmental analysis.…

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Added by Bob Krell on October 3, 2017 at 8:46pm — No Comments

Home Performance Coalition (HPC) Announces the Launch of Home Energy Pros Forum

HPC is proud to announce that the premier online community for the home performance and weatherization industry – the Home Energy Pros Forum – is now live and active.

Home Energy Pros Forum, a division of HPC, is an online community dedicated to amplifying the collective knowledge base of home energy professionals by offering a space for sharing resources, education, and knowledge. Merged from the rich dialogue and assembly of resources that Home Energy Pros provided over the years,…

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Added by Home Performance Coalition on October 3, 2017 at 9:30am — No Comments

Applications Now Being Accepted for BPI's Jon Siemen Memorial Scholarship

The Jon Siemen Memorial Scholarship has been developed to honor the life, memory, and work of Jon Siemen, who passed away in March 2015. Jon started his career in weatherization in the late 1970s, when he began working at Community Action in Southwestern Vermont (BROC). Around 1993/1994, Jon and his brother started an air sealing service that they ran for a few years. In 1996, Jon joined the Champlain Valley…

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Added by Home Energy Magazine on October 2, 2017 at 6:37pm — No Comments

3D Modeling Of Homes









  3D modeling of homes is useful for anyone interested in envisioning their ideas or helping someone turn their floor plan into a model to see how their idea might look in reality.  3D modeling also helps the green building designer to look at such things as solar…
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Added by Dannie Jackson on October 1, 2017 at 8:30pm — 2 Comments

Home Performance Coalition Announces the Merger of the Home Performance Forum and Home Energy Pros to Become the Premier Sharing Space for Home Energy Professionals

Some exciting changes are coming to Home Energy Pros. 

Looking back, the fruits of seven years spent growing the network include a community of nearly 6,000 members who have collectively generated thousands of pages of crowd-sourced content and discussion (more on that here). Over 3 million non-members have viewed the…

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Added by Evan Mills on September 26, 2017 at 9:00am — No Comments

The Race to the Top in Home Energy Performance Data: Why It Pays to Go First

Download RMI’s latest report, An MPG for Homes: Driving Visible Value for Home Energy Performance in Real Estate.

There is tremendous risk and reward to being a first mover. News that Tesla…

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Added by Kelly Vaughn on September 25, 2017 at 3:30pm — No Comments

The Latest Trend in Home Performance: Why You Should Be Concerned

For the past couple of years there has been a lot of conversation in the industry about indoor air quality and the health benefits of home performance upgrades. Even the certification folks have jumped on the bandwagon, offering special certifications for home inspections that focus on health and indoor…

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Added by Efficiency First California on September 21, 2017 at 11:01am — 1 Comment

Connecticut Builders at the Forefront of Zero Energy Home Construction

Since 2009, Connecticut utilities Eversource and United Illuminating have provided a stage for builders to compete and showcase their newly-constructed super energy-efficient homes through Energize Connecticut’s Zero Energy Challenge(ZEC).

The Challenge has kick-started a new era of home building in Connecticut. Builders…

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Added by Home Energy Magazine on September 15, 2017 at 11:00am — No Comments

NREL Research Finds That 22% of New Homes Completed in the U.S. in 2016 Were HERS Rated

The National Renewable Energy Research Laboratory (NREL) has been researching the penetration of the HERS Index Score in the U.S. housing market and discovered that in 2016, 22% of all completed new homes in the U.S. were HERS rated, according to David Roberts, NREL Residential Buildings Research Group…

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Added by Home Energy Magazine on September 12, 2017 at 11:04am — 1 Comment

LIHEAP In Action: A LIHEAP Employee Story

"In a tremendously difficult economy, I found myself desiring to learn a new skill set, one that could sustain me throughout my lifetime. I would have to say that the educational resources offered through training have served to heighten the development of my vocation which parallels my passion for this…

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Added by Home Energy Magazine on August 30, 2017 at 7:00pm — 1 Comment

If You Sell Electricity, You Should Be Worried

Any way you look at it, residential electricity use in America is falling. Recent data from the Energy Information Administration show that electricity use fell 3% in total and 7% when calculated per person in the last five years. This is a lot of electricity, corresponding to a 300 kWh per year reduction per person, or about one refrigerator per home. The decline also appears to be widespread; for example, residential electricity consumption fell in 48 out of 50 states between 2010 and 2015…

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Added by Home Energy Magazine on August 21, 2017 at 2:56pm — 1 Comment

Women in Building Performance: Julie Michals

Julie Michals is the Director of Clean Energy Valuation at E4TheFuture. In this role, her focus is on initiatives that improve approaches to measuring and evaluating clean energy program implementation. Prior to joining E4TheFuture, she spent 14 years with…
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Added by Home Energy Magazine on August 16, 2017 at 3:24pm — No Comments

Solar Decathlon CO-LOCATED with National Solar Conference and Community Challenge Workshop!

I just saw the blog on the Decathlon-- and I wanted to say But Wait, There's More! On days between the Decathlon weekends, in the same location, you can take in the 2017 National Solar Conference, organized by the American Solar Energy Society. This includes the meeting of the Passive Solar building folks and a special, free one-day workshop, sponsored by the DOE Solar…

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Added by Jill Cliburn on August 14, 2017 at 10:48am — 1 Comment

Volunteers needed for the upcoming U.S. Department of Energy Solar Decathlon 2017 - Denver, Co.

Please help us spread the word to your colleagues and friends in Denver, Co!

The U.S. Department of Energy Solar Decathlon is a collegiate competition of 10 contests that…

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Added by Stacy Hunt on August 14, 2017 at 7:30am — No Comments

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Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 4 hours ago. 15 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah 7 hours ago. 1 Reply

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco on Monday. 1 Reply

Latest Activity

Stuart Langley liked Chris Clay's photo
2 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Stuart, I wasn't considering the copula windows... yes, those would indeed need to be…"
4 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"Well, @David Butler, you have seen the property more accurately than I have, but my impression of…"
4 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"@ Stuart,I don't think there's any concern about impact of 4" build-up on elevation…"
5 hours ago
Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"So this building has a few issues with air leaks and air leaks have so much to do with discomfort…"
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Stuart Langley replied to David Butler's discussion How would you insulate this roof?
"John Hatfield has the right idea here for a new roof deck. Polyiso boards always need a good stout…"
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Keith Tripp replied to Sean Lintow Sr's discussion Water Saver or Gimmick? in the group Best Practices (Residential)
"Interesting to see that recirc. has been in use for many years in some places. It is still a…"
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Mahendra Shah replied to John Krochmalny's discussion Psychrometric Chart Training
"John Thanks for show and tell tutorial"
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