I was recently at the Railroad Museum in Old Sacramento. It’s a really interesting place, with tons of Northern California history. One of the most interesting things I learned there was about Roseville. Apparently, in the 1950s, Roseville had the most modern railroad facility west of Chicago, and it was a big reason that town grew so much back then, eventually becoming the biggest city in Placer County. That made a lot of sense to me. As an HVAC professional, I see a lot of homes in Roseville built in the 1950s. These houses are charming to be sure, but they’re getting older these days. Like anything getting up there in years, they aren’t without their fair share of problems. One of the most common complaints I hear from folks who live in homes built in the 50s is that the upstairs is always too cold in the winter, and too hot in the summer. The reason for this is many homes built in that decade don’t have the return vents they need upstairs. With that in mind, let’s talk about why your 1950s home is so darn hard to warm up.