Rogers Park is the city’s northernmost lakefront neighborhood and one of its densest. Most of it filled in during the 1910s and 1920s, once the elevated line reached Howard Street: brick courtyard buildings, corner apartment blocks and three-flats crowd the streets east of Clark, with frame houses and two-flats farther west toward Ridge Boulevard.
A large share of those buildings became condominiums, but the heating plant usually stayed the same. One boiler in the basement still feeds every unit, often on one-pipe steam, which is why winter calls here are about radiators that hiss, bang or stay cold while a neighbor’s unit is too hot.
Summer is the other half of it. Few of these buildings were ever ducted, so cooling has long meant window units. Owners who want something quieter and more efficient usually end up with ductless mini splits, and the main questions are where the outdoor unit can go and what the association will approve.