My very first apartment in Boston was on the fourth floor of an old building and management controlled (and paid for) the heat. The building was so inefficient that in order to heat the lower floors to a temperature just barely above freezing my unit would regularly be 85 degrees or more with the windows wide open.

I’ll never forget my first big winter storm thinking I was going to die of heat stroke because I had to shut the windows to keep the snow from blowing in. Some people on my floor would leave their window unit air conditioners in year-round to counteract the heat.

It was so wasteful and almost no one in the building had a comfortable temperature in their apartment all because it was cheaper/easier for management to just keep burning a ton of oil instead of investing in a bit of insulation.