We installed a Carrier Infinity series heat pump about 4 years ago. It works seamlessly with our natural gas heat, and the air conditioning in summer is super efficient and very comfortable. The heat pump makes very little noise. The electricity cost is very low because we have solar.

I installed solar panels on my new house in 2011, which is heated by heat pumps. Most of the time I almost forget they are there because they don't require any attention. But I am reminded of them every month when I get my electric bills, which are really low. My house is almost net zero though, of course, I use more energy than I generate in the winter. and make far more than in need in the summer so that in the hot months I supply renewable energy to others.

Our 24 panel system generates about 5 kW maximum, and as much as 35 kWh on the best of days. This has really tamed our summer AC bill, and winter heat pump heating bills, when it is not covered with snow.

The solar panels may sometimes suddenly drop snow onto our driveway. Perhaps in hindsight, we should have installed the panels on another portion of the roof so we wouldn't have to clear the driveway twice. We may eventually find some way to prevent it from sliding all at once. The bottom line is that we sometimes get very little solar production in February.

Our Carrier GreenSpeed central air and heat pump system heats and cools the main living space in our house. We now use oil for hot water and to supplement the heat pump in cold weather. The high performance air filtering system reduces dust and pollen. The system is efficient, quiet and comfortable.

The air handler is located in the attic, with short ducting runs to the bedrooms and the main living space. By insulating the attic roof (not the attic floor), the air handler is protected from temperature extremes, thus improving the overall comfort and efficiency.

We don't use temperature setbacks much. We find that whatever energy savings occur with a lower temperature overnight is exceeded by having the system run at full tilt to restore the higher room temperature in the morning. It is better to keep a steady temperature.

A year ago we replaced our gas stove with an LG induction stove.  There are so many things we like about it:

First, it heats up a pan really fast, boiling water in about 30 seconds on the highest setting.  You do need to be there to turn it down or it will boil over.

Next - the settibility is very accurate, compared with a lot of gas stoves which are quite coarse and don't all have a very low setting.  Unlike gas you don't see the flame to get a visual indicator, but once you get used to the settings it is very predictable.

If you take the pan off without turning off the stove, it detects that and turns it off for you with a friendly beep.  That is a feature, and if it does it accidentally you can turn it back on very quickly.

Super quick to clean, and the burner doesn't get hot  - just the pan does.

It seems the pans are less damaged by high heat, particularly the non-stick ones.

And you don't need to breath the fumes.  

I’ve never been one to care that much about cars, but I make an exception for my Chevy Bolt. I purchased the Bolt in 2017 and it is easily the most fun car that I’ve ever driven. It has great acceleration, is very quiet, and has enough range to get from Concord to the Cape and back on one charge. We charge it at home with a 240 volt “Level 2” charger which takes 8-10 hours to fully charge the battery, and with our low electricity rates it costs less than half what a gas car costs per mile. I’ve never had to worry about running out of juice, since there are plenty of places to charge up.