Una Bomba de calor es, a grandes rasgos, una máquina que se basa en un ciclo de refrigeración reversible. Este tipo de equipos tienen dos partes fundamentales, el foco caliente y el foco frío. Cuando se aplica energía eléctrica al sistema, uno de los focos aumenta su temperatura (desprende energía) mientras que el otro la disminuye (absorbe energía).
Added by Carlos on March 7, 2014 at 9:24am — No Comments
With the Google buyout of NEST thermostats, attention has turned from the “smart meter” to the thermostat as a focal point of residential energy efficiency. (Read this recent editorial by Alan Meier.) But several years ago Energy Star decided…Continue
In 2013, we published a blueprint with the National Home Performance Council that outlines a seven-step…Continue
In 2013, Boston earned the title of the most energy-efficient city in the United States from the American Council for an Energy-Efficient Economy (ACEEE). So why is the city outranking all others?
For one, the city implemented its own Climate Change policy, which sets energy-savings goals, such as reducing greenhouse gas emissions 25 percent by 2020, for the municipal government and the community. In 2013,…Continue
If we want to make good, or great, home performance a reality for more people and families across North America, we must come to some agreement on standard retrofit packages that work. Not every house is the same, but we can agree on standards that can be widely, quickly, and efficiently applied to similar housing types. The home performance community has more than three decades of experience to bear on the question. Please add your voice to the discussion.
Join Scott Yee, PARR;…Continue
Added by Jim Gunshinan on March 4, 2014 at 11:35am — No Comments
Added by Dianna K Heustis on March 3, 2014 at 8:39am — No Comments
By Trish Holder
I wash, dry, and fold approximately 10 loads of laundry per week. It is a constant logistical challenge to allocate enough time for these sequential chores.
Imagine what would happen if it took twice as long to dry the clothes. I’d be frantically drying my kids’ soccer uniforms with a hair dryer, while they paced about in that “My world is ending and it’s all your fault!” sort of way that teenagers are famous for. What parent needs more…Continue
Much has been discussed over exactly what is an optimal water heater temperature level setting. Many sources, consisting of ENERGY STAR, offer the energy conserving elements of temperature levels of 120 degrees or lower. And yes, there are cost savings to be had, however realistically for those whose current setting is closer to the standard factory preset temperature of 140 degrees.…
An article published in the NY Times, titled, "How To Get A Job At Google" got me thinking about one of the most innovative companies in the 21st century. Google, the people who want to "organize the world's information", was named one of the best places to work in 2012 and 2013 not only because of the free food 24-7, but also because of their culture and the Googlers who work there. It is a place that many in the tech world aspire to work at one time or another. In…Continue
Added by David Byrnes on February 26, 2014 at 9:59pm — No Comments
I run an energy program in the mountains of Colorado. We have a lot of homes without existing duct work and older style wall-mounted furnaces. I've been looking for a decent upgrade choice for my clients - so far Rinnai seems to be the brand of choice for most heating contractors. Problem is they have an AFUE of only .82 at the max, so don't qualify for high-efficiency furnace rebates through our program.
I recently discovered the Energy Saver 90 Plus from Empire Heating, a…Continue
I just put together a new infographic on the best two maintenance tasks homeowners can do with their water heaters. The best part is that they only take about ten minutes or so to perform! By checking these two things at least once a year will help with getting the full life out of ones water heater, as well as making it as energy efficient as possible.
Added by Phil Luther on February 25, 2014 at 10:54am — No Comments
Attention Wrightsoft Users!
Have you ever completed a load calculation and it just seems like it was short of what you had expected? Particularly when you are first starting out with a tool, contractors can make mistakes. After all, we tend to learn "the hard way", right? In an effort to make software work, the companies tend to start with some default values that require adjustment. For instance, most have the duct system in…
Now through February 28, 2014, former Everblue students have the opportunity to win a free seat to our Project Management training. This course prepares students to earn Project Management Professional (PMP) Certification!
To participate, all you have to do is submit a video discussing your experience in your last Everblue course - it's as easy as that! Full contest instructions can be found here:…Continue
Added by Everblue Training on February 18, 2014 at 11:23am — No Comments
I wanted to share an infographic I put together on the importance of water heater safety and the maintenance tasks most homeowners should be able to do to monitor their water heaters. Enjoy!…Continue
Added by Phil Luther on February 17, 2014 at 8:38pm — No Comments
It’s been a chilly, uncharacteristically snowy winter here in North Carolina. I have the luxury being able to sit in my warm “green” home and enjoy the beauty of these wintry transformations.
For my family and me, Mother Nature’s little surprises aren’t much more than…Continue
Added by Trish Holder on February 15, 2014 at 9:35am — No Comments
Here is the offending thermostat. Check out the mercury switch under the dial! Thank goodness we don't make them the way we used to…Continue
EnergizeCt.com is the go to place for Connecticut residents, businesses, nonprofits, communities, government & municipalities for information about programs available in saving and reducing energy costs.
The Residential section has a whole page on simple smart ways to start saving on your energy costs with easy to…Continue
Added by David Popoff Ct on February 11, 2014 at 3:00pm — No Comments
Cleaning the condenser coil. This has always been the number one task that Service Technicians avoid at all costs when maintaining residential equipment. Maybe it is the nature of the fast paced business when the weather gets hot? Certainly could not be the lack of water to rinse the coil as there is almost always is a water spigot on either side of the home. I cannot figure out why, and this may be one of the largest aspects of seasonal maintenance that impacts the efficiency of…Continue
1. If you sign today, I will take $X thousand off!
This is a sales tactic often taken by a used car salesman. A Quality HVAC Contractor will price their installation with confidence, after finding a solution to fit the needs of the customer, and correctly sizing such equipment. I have no problem with "ballpark" numbers over the phone, as this can help sift through customers that are not interested in quality, so contractors do not waste time on what tends to be free…
Added by Christopher Morin on February 1, 2014 at 11:00am — No Comments