A simple animation describing how a heat pump water heater works

Views: 430

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Comment by Craig Savage on May 23, 2013 at 3:19pm

Hello Tom

We are working with A.O. Smith, GE and Stiebel Eltron on a Building America task to drive the uptake of HPWH technology, so I'm in no position to pick a favorite brand.

You might be interested in Alex Wilson's take on the technology...and he offers some guidance.

http://www2.buildinggreen.com/blogs/look-heat-pump-water-heaters

 

As Alex points out, you might not have any choice in the matter after 2015...."New federal regulations that are due to kick in on April 16, 2015, will require that electric water heaters larger than 55 gallons have energy factors close to 2.0. .....—a performance level that can only be achieved with heat pump technology.

The energy factor requirements for smaller water heaters—up to 55 gallons in size—are also rising in April 2015, but will remain below 1.0 and will be achievable with a very-well-insulated electric-resistance water heater."

Nevertheless -- Caveat Emptor

Comment by Craig Savage on May 23, 2013 at 11:10am

Hello Tom

Not sure if you are being sarcastic, but a serious answer would be that GE is selling their completely  "made in USA" heat pump water heater with a 10 year warranty on both parts and labor....And the DOE/Building America program supports them with quite a bit of research....utilities all over the country are offering rebates, and heaven knows they aren't into risk....
I will say, however,  that HPWH's do carry a lot of historical baggage with them -- having been through a couple cycles of development and deployment with less than satisfactory results..so we are seeing some pushback from plumbers with long memories. Constructors tend to go slow and hold on to war stories forever. To wit builders that still use "tar paper" in lieu of non-wovens. 

Here's a link to a website with lots of information on the topic of heat pump water heaters -- you can decide for yourself....

http://www.barateam.org/hpwh/index.html

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Helen Best posted a blog post

Low-Flow Shower Heads Save Water

Just about everyone enjoys a nice long hot shower. It does come with some cost for the water and…See More
3 hours ago
Helen Best liked Helen Best's blog post This Might Be the Most Water-Efficient Shower Head Ever Invented
3 hours ago
Therma-HEXX posted blog posts
8 hours ago
Michael Dunseith posted photos
10 hours ago
Jeffrey Anthony posted a discussion

9 Blower Door Frames, 9 Shrouds, and 11 Fans, and 8 Fan Controllers For Sale

We are clearing out some of our redundant inventory. All items are from The Energy Conservatory.9…See More
12 hours ago
Quinn Korzeniecki posted a discussion

Five Retrotec Products Added to BPI Product List

The Building Performance Institute, Inc. (BPI) has recognized five new products in its Product…See More
12 hours ago
Tom White's video was featured

New York energy policy & North American Passive House Network Conference

New York is increasing its energy standards and is investigating the possibility of implementing the Passive House Standard for new construction and retrofit projects. Interviewee: Ken Levenson, with NY Passive House Assoc and 475.
13 hours ago
Profile IconRichard Hale, Joseph Schulman, Carol W and 1 more joined Home Energy Pros
13 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service