"My heat isn't working" can mean a furnace, a heat pump, an electric system, or a boiler -- and the fix is different for each. Local contractors across Springfield and Robertson County diagnose which system you have, what failed, and whether it is a same-day repair, then quote it before starting.
Springfield is the Robertson County seat, laid out in 1798 around a public square where the courthouse still stands at the center of a downtown listed on the National Register of Historic Places. The county built its economy on dark-fired tobacco — Springfield is still known as the dark-fired tobacco capital of the world — and it remains one of Tennessee's larger agricultural counties, even as commuters have filled in subdivisions along the roads toward Nashville, about 30 miles to the south. That history shows up in the housing: roughly 42% of Springfield's homes were built before 1980, while the newer neighborhoods on the edges of town date from the 1990s onward (U.S. Census ACS 2024 5-year estimates). About two-thirds of homes here heat with electricity, which mostly means heat pumps working through both Middle Tennessee summers and winter cold snaps, so the age of the outdoor unit and the condition of older ductwork drive most repair-or-replace decisions. Older houses near the square often have ductwork added after the fact, which can cause airflow and sizing problems that a simple equipment swap won't fix.
Heating Systems and How They Fail
Most Middle Tennessee homes run a gas furnace, but heat pumps and electric systems are common enough that the first job on a no-heat call is identifying the equipment and the failure mode. A house built in the last decade and a farmhouse that's had three furnaces over fifty years often fail in completely different ways, which is why a technician confirms the equipment type and its service history before reaching for a specific fix.
- Gas furnace -- igniter, flame sensor, draft inducer, pressure switch, or control board; a cracked heat exchanger is the safety exception that stops the visit.
- Heat pump in heating mode -- a reversing valve stuck in cooling, a failed defrost board icing the outdoor unit, or auxiliary heat strips not carrying load on the coldest nights.
- Electric furnace or strip heat -- burned-out heating elements or a failed sequencer staging them.
- Boiler / hydronic -- circulator pump, expansion tank, ignition, or a zone valve that won't open.
- Common to all -- thermostat wiring or calibration, a tripped breaker or safety, and airflow restrictions that make a working system feel like a broken one.
No Heat -- Urgent or Can It Wait?
Some heating problems are a scheduling call; others are not. The equipment type changes the specifics, but the underlying question is always the same: is anyone in the home at risk right now, or is this a comfort and efficiency issue that can hold until a normal appointment slot.
- Treat as urgent: no heat during a hard freeze, any smell of gas, soot or scorch marks near the unit, or CO-alarm activation -- shut the system down and call.
- Usually can be scheduled: a noisier-than-normal furnace, a heat pump that is slightly less efficient, or one room that runs cool.
- Carbon monoxide risk is the reason a technician checks the heat exchanger on every gas-furnace visit, not just when asked.
- If the system is a heat pump, 'running but not keeping up' in a cold snap is often the backup heat, not the heat pump itself -- worth checking before assuming the worst.
This content is reviewed by the Clarksville HVAC Repairs editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for hvac repair. Read our editorial standards.