HVAC Installation in Delaware, OH
A new system here will heat from October through May and cool from June through August every year. Tell us about the house, and a licensed contractor who covers Delaware County will get in touch.
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Delaware County asks a new system to run almost year round
Winter nights here average 23°F, and a furnace has to cover that from October through May, eight months of the year. Summer afternoons average 83°F, and an air conditioner takes over for June through August. Between the two, something in the house is running most months of the year.
That kind of use means new equipment needs to hold up on both ends of the season, not just get through a mild stretch. Ohio saw 94 damaging wind events and 5 winter storms over the past ten years, and 18% of households went at least 24 hours without power in 2024. Whatever gets installed should start back up on its own once the power does.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 23°F
- the average winter night it heats against
- 83°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
In Ohio, HVAC licensing for homes is left to the counties.
Delaware County sets its own rule for who can do this work, since Ohio leaves HVAC licensing to the counties rather than handling it at the state level. Whatever the county requires, it applies to the contractor doing your installation, and it's worth knowing that Ohio's definition of a home contractor calls for at least $250,000 in liability insurance. That's a financial threshold written into the definition, not a license the state issues or tests for.
With no state license standing behind this job, the protection here comes from the permit process instead. Installing a furnace, air conditioner or heat pump in most Ohio cities and counties requires a permit from the local building office, and the work gets inspected once it's done. That inspection is what checks the gas connections and the rest of the installation against code, since a bad gas connection is the part of this job that can turn dangerous.
Source: Ohio Legislative Service Commission
- When should I replace my HVAC system?
- Once your furnace or air conditioner is old enough that repairs are getting frequent, replacement usually makes more sense than fixing it again. An aging unit is more likely to fail during a stretch of hard use, like a stretch of winter nights near freezing or a hot run of summer afternoons. Rising energy bills without a clear cause and uneven heating or cooling from room to room are also signs the system is wearing out. A contractor can look at the age, repair history, and condition of your system and tell you whether it makes sense to fix it again or replace it.
- Should I replace my furnace and air conditioner at the same time?
- If both are close in age, replacing them together often makes sense, but it depends on the condition of each one. A furnace and air conditioner installed at the same time tend to wear out around the same time too, so if your AC needs replacing and your furnace is the same age, it may not be far behind. They also share a blower and, in many systems, a coil, so matching the two keeps them working the way they were designed to. If one unit is much newer than the other, a contractor can tell you whether it is worth keeping.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace, air conditioner, or both in place, and connects them to your ductwork, electrical, and, for gas furnaces, the gas line. They will also check the ductwork and vents for leaks or sizing issues, since a new system connected to bad ductwork will not heat or cool the way it should. Once everything is connected, they test the system, check refrigerant levels on an air conditioner or heat pump, and confirm the thermostat is working with the new equipment. A contractor can walk you through what your specific installation will involve before the work starts.