When I checked, though, it was just water. Then I remembered the air conditioner. All ACs produce water, and your car's just ...

There are some parts of the world where living without air conditioning borders on unthinkable. But in more moderate climates, it isn’t all that unusual. [Josh’s] apartment doesn’t have ...

There are more model, feature choices today, and financial incentives for changing your water heater and home heating-air conditioning systems that offset upfront costs.