A Clear Walkthrough of How the Day Usually Unfolds
If you have a new system going in, you can expect the day to include removing the old unit, setting the new furnace in place, connecting gas and electrical lines, testing the system, and cleaning up the work area. Most furnace installation jobs take one full day. The team will protect your home, check safety settings, and show you how everything works before they leave.
Quick answer: how the day will go
On installation day, the crew will arrive on time, review the plan with you, and shut off power and gas to your old system. They will remove the old furnace, prep the area, and install the new unit. After setup, they will test airflow, thermostat control, and safety features. You will get a simple rundown of how to use and maintain your new heating system before the job is done.
What you need before starting
A little prep helps the day run smoothly. Clear a path from the door to the furnace area. Move boxes, storage bins, or furniture that block access. Keep pets in a safe room away from the work zone. If your furnace is in an attic, garage, or basement, make sure there is good lighting.
It also helps to:
- Have someone home to approve final steps
- Share any past heating issues
- Point out the thermostat location
- Ask questions before work begins
Many homeowners in Springfield, IL schedule furnace installation during cooler months. Planning ahead can help avoid peak season delays.
Step-by-step process during furnace installation
Here is a simple breakdown of what usually happens:
- System shutdown. Power and gas are safely turned off.
- Old unit removal. The existing furnace is disconnected and hauled away.
- Inspection. Ductwork, vent pipes, and gas lines are checked.
- New unit placement. The new furnace is set and leveled.
- Connections. Gas lines, electrical wiring, and thermostat wires are connected.
- Vent and airflow setup. Exhaust and intake pipes are secured.
- System testing. The unit is powered on and tested for proper heating cycles.
- Final walkthrough. You learn how to change filters and adjust settings.
If your home is also getting work tied to , such as airflow upgrades or vent changes, that can add time to the job.
Common mistakes to avoid
One mistake is not replacing the thermostat when needed. Some older thermostats do not match newer high-efficiency systems. Another issue is blocking return vents with furniture after the install. That can reduce airflow and comfort.
Homeowners sometimes skip filter changes in the first few months. A dirty filter can lower performance and stress the new system. Mark your calendar for regular checks.
When to call a professional
Furnace installation is not a do-it-yourself project. Gas lines, venting, and electrical work require training and proper tools. Poor setup can lead to carbon monoxide leaks, weak airflow, or high utility bills.
You should also call a professional if:
- You smell gas after installation
- The system turns on and off too often
- Rooms feel uneven in temperature
- You hear loud or unusual noises
A trained technician can inspect the system, adjust settings, and keep your home safe.
What happens after installation day
After the crew leaves, your new furnace should run quietly and heat your home evenly. It may have a mild new-metal smell during the first cycle. This is normal and should fade quickly.
Keep the area around the unit clear. Change the filter every one to three months. Schedule yearly maintenance to keep furnace installation performance on track for years to come.
Ready for a smoother heating upgrade?
If you are planning furnace installation in Springfield, IL, we are here to help from start to finish. At Mike Bergen Heating and Cooling, we handle everything from system sizing to final testing with care and attention. Call (217) 210-0042 to speak with our team and schedule your installation day with confidence.