Since you would be dealing with maintaining a gas tank I would have all electric except a gas fireplace. 

There is no active electric and where the breakers were taken out of the breaker box.

The next option is to get the device (you can get on Amazon) that shows the meter for what one unit is pulling versus the other.

What about maintenance if a device breaks?

Has anyone used this device or have another recommendation to monitor water usage? 

@Kasey Hardt very interesting,  didn't realize this was a pattern but even I've got friends that are getting recruited to the area for medical device startups etc, so could be a very interesting trend to watch.

Electric heaters are dangerous and can start a fire if left unattended.

@Jorge Caceres Is this with electric baseboard heaters or  heat pump/minisplits.

The vast majority of electric dryers run on 220v.

I went back to the webinar through a different device and saw that they had also added a link to access his Gator Method for $2,997.