HVAC Installation in Troy, MO
A new system here will heat from October through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Lincoln County will get in touch.
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A new system in Troy has to handle both ends of the year
Winter nights here average 23°F from December through February, and your new furnace or heat pump has to bring the house back up from that, night after night, October through April. That's 7 months of real heating load. Then summer afternoons average 86°F, and the same system carries the cooling side for the 5 months after that. Between the two, there's no real off season here.
Most homes in this area heat with electricity, so a power outage means no heat unless the system has a way around that. This area has logged 8 winter storms and 36 damaging wind events over the past ten years, and in 2024, 19% of Missouri households went at least 24 hours without power. That history is worth weighing when you decide what to install.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 23°F
- the average winter night it heats against
- 86°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Replace your system when repairs start happening every year or the unit is old enough that a breakdown could leave you without heat or air at the wrong time. Furnaces and air conditioners both have a normal service life, and past a certain point parts get harder to find and efficiency drops. Here, your furnace runs October through April and your AC runs May through September, so there's almost no month where either one can sit broken for long. If a contractor tells you a repair costs a third or more of what a new system runs, that's usually the point to stop patching it.
- Should I replace my furnace and air conditioner at the same time?
- If both units are close in age, replacing them together often makes sense, but it isn't required. A furnace and AC installed at the same time wear down on a similar timeline, so if one is failing the other is usually not far behind. They also share the blower and ductwork, so a matched system tends to run better than pairing an old unit with a new one. A contractor can look at the age and condition of both and tell you whether it's worth doing now or waiting.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace and or air conditioner, and connects it to your ductwork, gas line or electrical circuit, and the refrigerant lines if it's an AC or heat pump. They'll check that the ductwork is sized right for the new unit, since a system that's too big or small for the ducts won't heat or cool evenly. Once it's connected, they test it, check refrigerant levels or gas pressure, and confirm it's heating or cooling the way it should before they leave. On a system that handles both heating and cooling, expect them to run it in both modes before calling the job done.