Steam heat and boiler help in Tower Grove & South City
South City neighborhoods like Tower Grove South, Tower Grove East and Shaw are full of early-1900s brick two-family flats, four-families and single-family homes. Many still heat with a boiler and radiators, and many of those boilers serve more than one unit.
Housing and heating in Tower Grove & South City
ZIP codes: 63110, 63116, 63118. What you'll commonly find:
- Brick two-family flats (one unit up, one down) and four-family buildings
- Single-family brick homes and bungalows from the early 20th century
- Some buildings with one boiler for all units and others with a boiler per unit
- Basements shared by several units, with piping that has been patched over many years
Steam and boiler problems that come up here
- One boiler and one thermostat for two units, so one tenant is too hot and the other too cold
- No heat calls when a unit sits empty in winter and pipes are at risk of freezing
- Banging from piping that has sagged over decades
- Landlords comparing repair against replacing a boiler that serves several units
These are common patterns in older housing like this, not a diagnosis. Every building is different.
When you call
Tell the technician how many units the boiler serves, where the thermostat is, which units or rooms are cold, and whether any unit is vacant.
STL Steam Heat is a free referral service operated by Thurr Solutions LLC. We pass your request to an independent local heating technician, who quotes and does the work.
Tower Grove & South City steam heat questions
Our two-family flat has one boiler and one thermostat. How do we stop one unit from overheating?
Common approaches are balancing with radiator air vents, adding thermostatic radiator vents on overheated radiators, or moving or adding controls. What works depends on whether the system is one-pipe or two-pipe steam or hot water, so have it looked at by someone who works on these systems.
I'm a landlord. Can I request service for a rental?
Yes. Requests from landlords and property managers for flats and small apartment buildings are welcome. Say how many units the boiler serves and whether a tenant has no heat right now.
General steam heat questions
Why do my steam radiators bang?
Loud banging (water hammer) almost always means water is trapped where steam is trying to pass, usually in a pipe or radiator that has lost its pitch, or because the boiler water is surging. Steam condenses back to water and has to drain back to the boiler. If a radiator tilts the wrong way, a pipe has sagged, a one-pipe radiator valve is half closed, or the boiler water level is too high, the water pools and the next rush of steam slams into it. Common fixes are re-pitching radiators (a shim under the legs), re-pitching or re-hanging sagging pipe, opening one-pipe valves fully, correcting the water level, and skimming or cleaning dirty boiler water. Light ticking as metal warms up is normal; loud bangs are not.
Why are some of my radiators cold while others get hot?
Most uneven steam heat comes from air that can't get out: a stuck or undersized radiator air vent, missing or failed main vents in the basement, or on two-pipe systems a failed steam trap. Steam can only fill a radiator as fast as the air inside it escapes. Radiators far from the boiler need the air pushed out of the main pipes first, which is the job of the main vents near the end of each steam main. Other causes are a closed valve, a radiator tilted so water sits in it, or the pressure set too high, which makes vents close early. On a two-pipe system, one failed trap can let steam into the return and leave other radiators cold.
Should I repair or replace my old steam boiler?
Repair it if the boiler itself is sound and the trouble is controls, vents, water level or piping; consider replacement if the cast-iron sections are cracked or leaking, repairs keep piling up, or parts are no longer available. Age alone isn't the deciding factor: many old cast-iron steam boilers keep running for decades with basic care. Signs that point toward replacement are water leaking from the boiler sections, a firebox or heat exchanger that is rusted through, unsafe combustion or venting, and repeated major repairs. A new boiler has to be sized to the radiators you have, not to the old boiler, and piped correctly, or it can run worse than the one it replaced.
No heat in Tower Grove & South City?
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