Old houses are amazing if you need to live in them without modern heating and cooling. They're built to work about as well as possible, under those circumstance

Old houses are amazing if you need to live in them without modern heating and cooling. They're built to work about as well as possible, under those circumstances. They suck if you want to retrofit them to have modern heating and cooling. The high ceilings, giant windows on all sides, large open attics (vital for temp control without AC!), and generally poor sealing (=great if you need them to survive temp and humidity changes throughout the year, and not turn into a giant mold farm like a modern house would) all work against you.