In 2012 we bought a house that was only 1400 ft.² but it had electric baseboard heating. The first January we got a bill for $500 and we kept the heat at 68.
After that, we turned off the heat in the bedrooms during the day and only heated the rest of the house at 68. If we wanted to use one of the bedrooms during the day, since two of them were offices, we had space heaters that would warm up the room quickly with the door kept closed.
At 10 PM we turned off the heat in the rest of the house and set our bedroom at 68. it warmed up fairly quickly with the door closed.
When we got up in the morning, it was really cold in the main living area but never below 55. However, we were able to keep our electric bill at $160/month year round. I sold the house five years ago and I’m sure the prices are much higher now.
I often thought the buyer might’ve been shocked when they started to get their first electric bills because they would have no idea how we were keeping the price down so low.
In my Condo, we have central heating, AC and water systems that are boiler based. We don’t get individual bills and it’s in our HOA fees. However, I’ve been surprised at how reasonable it is when I reviewed the budget because I’m on the HOA board so the boilers must be fairly efficient. I do have a small electric bill for my condo which is basically my lights and the fan that runs the AC and heat.