Florissant ranks among the biggest municipalities in St. Louis County's northern half, home to around 51,800 people on twelve and a half square miles, about a dozen miles north of downtown. Postwar growth defines it. Half of the homes standing today were built by 1963, and 79% of all residences are stand-alone houses.
Florissant heats with gas
Roughly 83% of the 21,200 occupied households are on piped utility gas, about 15% heat with electricity, and propane barely registers. That makes the gas furnace the default appliance in town, tucked downstairs or, in slab ranches, inside a utility closet.
Sixty-year-old houses, third or fourth furnace
A 1963 house is likely on its third furnace by now. Things worth checking before replacement:
- Orphaned water heaters. Many mid-efficiency units exhaust up a brick chimney alongside the tank heater. Once a condensing model moves to PVC, that tank is left alone in a chimney built for two appliances, and drafting problems follow unless someone lines or resizes it.
- Condensate. A condensing gas furnace drains water, so the installer must route that water to a drain or a small condensate pump.
- Leaky returns. Builders of that decade often closed off floor-joist bays with sheet metal to make return paths. Those bays pull dusty basement air and waste capacity; fixing them pays off alongside any equipment upgrade.
Electric-heat homes
For the 15% on electric heat, a cold-climate heat pump usually cuts winter bills compared with strip heat.
Buying from Furnace Direct
Furnace Direct, a DBA of Hamlin Mechanical LLC, cuts out the distributor on heating equipment. Florissant installs are dispatched from the Furnace Direct St. Louis team.
When replacement makes sense
Cracked heat exchanger findings, a carbon monoxide alarm, a blower motor failure on a 20-year-old unit, or repair bills that keep stacking up. Early fall is the calm season. Gather the furnace model, the water heater's age, and vent-pipe photos. Call for Pricing at (888) 762-1334.
Florissant city statistics (American Community Survey, 2020–2024) from Census Reporter.
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