"Larry, Could you provide a comment on the Heat Pump Water Heater (HPWH) results and info shared at the Dry Climate Forum? Who in CA is testing the CO2 HPWHs? Did anyone have info to share on the HPWH that are one head of a minisplit? Seems like…"
"Bruce, congratulations! The 1000 Home Challenge is not designed to be easy to meet. You're setting a nice example of how to do it with buy in from your family! Please do keep us up to date on how your water heater behaves over…"
Our gas use is mainly in our gas furnace. Although it is a 95% AFUE condensing furnace that is right-sized (35,000 BTU/hr versus the previous 100,000 BTU/hr model), we keep the house a comfortable 70 degrees in the winter. The other…"
"Alice, a 30 amp breaker on a seperate 220 volt circuit was required. Fortunately, a previous owner had put in a 220 wiring for a spa with an electrical junction box right at the location of the water heater, so all the installing contractor had to…"
"Our Vaughn HPWH is located in the garage, where the cooling is welcome in the summer when it would otherwise get pretty hot in there. It doesn't seem to make the garage more than a couple of degrees colder in the winter (still stays at 60…"
"Congratulations to Bruce and his family! How wonderful to have a focused conversation around the dinner table to keep the family motivated towards THC goals. Even more exciting to think that your kids are talking to other kids and…"
"Yes, Bruce, please answer the noise question. I hadn't considered that, and it could be a deal-breaker, since ours is also located in the center of our house. Did you also have to run a separate circuit (20 AMP?) from your breaker…"
"Kudos Bruce & family for achieving such exemplary energy use. Are your SMUD colleagues sufficiently impressed?! I'm interested in your heat pump water heater, as water heating (with a natural draft gas storage WH in the center of the house)…"
"Wow, Bruce! The 79% overall reduction is truly impressive, especially since you have children. I think natural gas reduction is the hardest; everyone loves hot water, and if you have a gas stove, you have no choice for cooking, other…"
"Yes, Bruce, I think that deciding what you will do to conserve yourself, rather than being told (or nagged) makes a huge difference - so I'm not surprised to hear that your table conversation was very motivating. Now if the kids get…"
"Thanks for the congrats, Ann. We are thrilled to have reached the goal, thanks to the motivation of participating in the Thousand Home Challenge.
My two daughters are 8 and 11 and still protest about having to bath. Talk to me when they are both…"
"Nickie: I estimate that 15% or more of our energy savings is behavioral, which could not have been achieved without cooperation and buy-in from the whole family. Interestingly, a conversation we had around the dinner table about what it would…"
Have only very limited data from one project. For 3 months, electric use is about 20Jean%20May-July%202011%20Electricity%20Use.docx% more than predicted and 38% less than estimated pre-retrofit. However, it's been a very mild summer. see attached.