All Blog Posts (960)

Know true costs; Save real energy

By Guest Blogger Kara Saul Rinaldi

More than half of the states in the nation have created programs to increase the energy efficiency of homes through a comprehensive approach that looks at all opportunities to save energy, from insulation to upgrading heating and cooling systems. When taxpayer and ratepayer dollars are used, it is essential that these programs are reviewed with a cost-effectiveness test that provides policymakers with adequate knowledge about the programs’…

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Added by Elisa Wood on December 4, 2011 at 3:24pm — No Comments

Why we need Passive houses

Why we need Passive houses - Factor five: transforming the global economy through 80% improvements in ... von Ernst Ulrich Weizsäcker,Club of Rome,Natural Edge Project…

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Added by Guido Schuler on December 3, 2011 at 12:00pm — No Comments

Energy Efficiency Jobs: Another Well-Meant Hustle?

Are Energy Efficiency programs we are participating in another well-meant hustle, or is there lasting prosperity to be had in our industry? Beyond anecdotal reports, ARRA-funded enthusiasm for excellent Energy Efficiency (EE) programs like Energy Upgrade California and Evergreen, San Jose’s “Project 5002,” are EE endeavors really…

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Added by Nichole Edraos on December 2, 2011 at 2:55pm — No Comments

Part 1 of: The "1-2 Punch" to HVAC "Not Understoods"

HVAC Delivery System Losses -

This is the Air Pressures, Duct System, the Boots, the Registers, Equipment Cabinets, Air Balancing, Temperature rise and drop parameters, etc. 

 

This is a greatly overlooked and not understood part of a system, even by most HVAC Journeymen and contractors. How do we come to this conclusion?…

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Added by Christopher Cadwell on December 1, 2011 at 10:04am — 1 Comment

What is Humidity and How Does it Effect Home Energy Savings?

What is Humidity and How Does it Effect Home Energy Savings

by Don Ames,   www.detectenergy.com

We all know what humidity is - it is the cause of the mold on the ceiling in the bathroom. Humidity is what happens to the bathroom mirror during a shower. Humidity is why we have an exhaust fan in the ceiling of the bathroom. Humidity is why a hot summers day in …

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Added by Don Ames on November 30, 2011 at 8:30am — 2 Comments

Are Realtors doing enough for “Future Generations?”

This time two weeks ago I was in Anaheim, California, at the National Association of Realtors’ Annual Conference, themed “Seize the Day“.

I am still struck by the bigness of it all. Not just the sheer numbers (over 20,000 of us!), but by the strength of the passion and the vision.  Yet I am still wondering, are we delivering what future generations of home owners need…

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Added by Laura Reedy Stukel on November 28, 2011 at 7:54pm — 1 Comment

Notable Results in AC Training

The final survey results of the second week of students in the High Performance HVAC classes.
Here are some notable results of what the students felt that they got out of the course.
  • How to reduce # of registers while improving comfort. 
  • Importance of velocity - amount needed to properly mix air.
  • How to select register types to control noise and performance. 
  • Whole house as…
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Added by Christopher Cadwell on November 27, 2011 at 9:00pm — No Comments

Gas Heaters or Electric Heaters - which one for home?

There are plenty of concerns arising when deciding which home heating solution to invest in.

The market is full of options offering so many types of space heating devices one starts to wonder which one is the best choice. Usually the types considered vary from: portable gas heaters to electric space heaters like infrared heaters, ceramic heaters or portable oil-filled radiators.

There is no rule of a thumb answer for this but what I like to do is to approach the problem from…

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Added by Jon on November 27, 2011 at 7:00pm — No Comments

Solar Power Panel and the Pergola

Getting the Most out of Your Pergola, Think Solar Power Panel

by Don Ames,   www.detectenergy.com

Sitting in a meeting the other day, I was listening to a discussion on where to put half-a-million dollars worth of solar power panels. The discussion considered placing panels on roofs, on picnic shelters, and carports - it's not easy trying to find a place for a bunch of solar panels. After all, there are things to keep…

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Added by Don Ames on November 27, 2011 at 10:20am — 2 Comments

Why free energy perpetual motion devices don't work

The following appeared on my blog Mapawatt and is in response to the "free energy plans" that have infiltrated Google and Facebook advertisements. I'm afraid a large number of people get suckered into buying these and are left with junk.

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It still amazes me that with all our posts dedicated to trying to help homeowners save energy, our most popular posts are on free energy scams (mainly…

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Added by Chris Kaiser on November 25, 2011 at 2:49pm — 1 Comment

passivhaus Newsletter

bre passivhaus newsletter

Added by Guido Schuler on November 25, 2011 at 5:39am — No Comments

Zero Duct Leakage - Yes it is Possible.

What does this mean? How can we get to zero duct leakage?

 

When the testing equipment is not small enough to accurately measure the leakage - then it is called zero - usually below 10 CFM of leakage.

Essentially every seam of all the metal and every inside connection of the…

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Added by Christopher Cadwell on November 22, 2011 at 10:30pm — No Comments

window Films

Does anyone have experience with window films installed over e-glass? Is there a payback on south facing windows during the hot summer months? Or would transparent shades work better?

Added by Ron Lessard on November 22, 2011 at 9:34pm — 1 Comment

Homeowners Becoming More Aware of Pending Lighting Changes

Consumers will soon face new decisions when purchasing light bulbs, and many don't even know it yet. Beginning January 1, 2012, lighting manufacturers will no longer be producing the popular 100-watt incandescent light bulb. For professionals in the energy efficiency industry, this has been common knowledge since the passage of the Energy Independence and Security Act of 2007. Although many consumers have been slow to understand the pending changes, awareness is trending upward, according to…

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Added by Adam Flowers on November 22, 2011 at 5:59pm — No Comments

Free Energy Measures

This is one of my "Energy Tip of the Week" articles. If you are an energy pro please add to my free energy measures list below, thanks.



Here are some great FREE ways to make your home more energy efficient and comfortable.

  1. Close your windows. Sound simple but you have to close AND lock a window for it to protect your home from incoming winter air. This applies to storm windows too.
  2. Use window…
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Added by Joseph Novella on November 22, 2011 at 1:00pm — 1 Comment

Another Week of Awesome AC Training

Another week ahead with the master HVAC installer and trainer - Rick Chitwood.

This is no ordinary course room.* This is the house about to be retrofitted. We just got through the day of reasoning on the background as to why we install AC in…

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Added by Christopher Cadwell on November 22, 2011 at 6:30am — No Comments

NAR Study: Homebuyers Consistently Seek Efficiency

The National Association of Realtors’ annual Profile of Home Buyers/Sellers is out.  The 2011 results are impressive not because of anything new, but because of consistent results about homebuyer interest in…

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Added by Laura Reedy Stukel on November 21, 2011 at 8:30am — No Comments

2012 are the days of passive house between the 9th and 11 November 2012

2012 are the days of passive house between the 9th and 11 November 2012

Added by Guido Schuler on November 21, 2011 at 2:55am — No Comments

Calculating Potential Energy Savings

Your Home: Calculating Potential Energy Savings With the Home Heating Index

by Don Ames,   www.detectenergy.com,  the Energy Spy Insider

This is about taking a miles-per-gallon approach to calculating Home Heating Performance and Potential Home Energy Savings. I will cover the Home Heating Index formula that will allow you to evaluate your Energy Performance and Energy Saving Potential. By using this…

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Added by Don Ames on November 20, 2011 at 8:20pm — No Comments

“Passive House components across the globe” – manufacturer’s exchange

2012 International Passive House Conference

“Passive House components across the globe” – manufacturer’s exchange

Passive House has taken the world by storm, dramatically increasing demand for Passive House suitable products in all corners of the globe. In order to help meet this demand, we would like to offer participants of the 2012 International Passive House Conference a Manufacturer’s exchange, to be held at the Hanover Congress Centre…

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Added by Guido Schuler on November 20, 2011 at 6:30am — No Comments

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