The Foundation of a Warm Lemont Home Starts With the Right Furnace Installation
A furnace is the single largest heat source in most Lemont homes, and the way it is installed determines how well it performs for the next fifteen to twenty years. A unit that is correctly matched to the home, properly vented, and precisely calibrated will heat evenly, run quietly, and keep energy bills predictable. A unit that is installed poorly, even if the equipment itself is excellent, will short-cycle, produce uneven temperatures between rooms, and wear out years ahead of schedule. This is why furnace installation is far more than dropping a new box into a basement and connecting a few wires.
At All Temp Heating & Air Conditioning, we approach every Lemont furnace installation as a complete system project. We evaluate the home’s heat load, the existing ductwork, the venting path, the electrical supply, and the gas line before we recommend a single piece of equipment. This methodical approach is one reason All Temp Chicago Heating & Air Conditioning has become the first choice for tens of thousands of families throughout the Chicago and suburban areas. We remain a family owned and operated company, and we treat each installation the way we would want work done in our own homes.
How We Size and Select the Right Furnace
Proper sizing is the technical foundation of a lasting installation. We perform a Manual J heat load calculation that accounts for the square footage of your Lemont home, ceiling heights, window count and glazing type, insulation levels, air infiltration, and the local climate. Lemont winters routinely push into single-digit temperatures, so we design for the coldest days without oversizing for milder weather. An oversized furnace heats a space too quickly, then shuts off, only to restart minutes later. That short-cycling stresses the ignitor and blower motor and creates uncomfortable temperature swings.
Once the load is established, we help you choose equipment that fits both your comfort goals and your budget. As one of Bryant’s highest-rated dealers in the nation, we install furnaces built to demanding quality and efficiency standards. When we discuss options, we focus on the specifications that actually affect your daily experience:
- AFUE rating: Annual Fuel Utilization Efficiency tells you how much of the fuel becomes usable heat. High-efficiency condensing furnaces reach 90 percent and above, which reduces waste through the exhaust.
- Staging and modulation: Single-stage furnaces run at full output. Two-stage and modulating models adjust output to match demand, delivering steadier temperatures and quieter operation.
- Blower motor type: A variable-speed ECM blower ramps up and down smoothly, improves airflow balance, and pairs well with air purifiers and humidifiers.
- Physical dimensions and clearances: The furnace must fit the mechanical space with proper service and combustion clearances, which matters in older Lemont homes with tight utility rooms.
Selecting equipment this way protects your investment. A furnace that is correctly sized and matched to the ductwork will hold its rated efficiency in the field, not just on the specification sheet. We take the time to explain each trade-off so you understand exactly what you are buying and why it fits your home.
Our Furnace Installation Process From Start to Finish
Every installation follows a disciplined sequence that we have refined across countless projects. We begin with the in-home assessment described above, then confirm the equipment selection and schedule the work at a time that suits you. On installation day, our courteous, fast, and friendly staff protects your floors and work areas, then removes the old furnace safely, including proper handling of any refrigerant lines if a paired system is involved.
The new furnace is set in place, leveled, and secured. We then address each connected system in turn. Gas connections are made and leak-tested. The venting is inspected and, for high-efficiency condensing units, we install or verify the PVC intake and exhaust piping along with the condensate drain, which carries away the acidic water these furnaces produce. Electrical connections and the thermostat are wired, and we confirm the control board communicates correctly with any accessories such as a humidifier or air purifier.
Before we consider the job complete, we commission the system. Commissioning is the step that separates a professional installation from a rushed one, and it includes several measurements:
- Static pressure test: We measure airflow resistance to confirm the ductwork is not choking the furnace, which protects the blower and heat exchanger.
- Gas pressure verification: We set the manifold pressure to the manufacturer specification so combustion is clean and efficient.
- Temperature rise reading: We check the difference between return and supply air to confirm the furnace runs within its designed range.
- Safety control check: We test the flame sensor, limit switches, and pressure switches to confirm the furnace will shut down safely if a fault occurs.
We finish by walking you through the new thermostat, filter location and replacement schedule, and the basic maintenance that keeps the warranty valid. We also register the equipment on your behalf so the manufacturer coverage is active from day one.
Furnace Installations for Every Kind of Lemont Property
Lemont blends historic homes near the old downtown with newer subdivisions and larger properties on the outskirts, and each presents its own installation considerations. In older homes, we frequently encounter undersized or leaky ductwork, outdated venting, and gas lines that need updating to support a modern high-efficiency furnace. We handle these situations regularly and can recommend duct sealing or modifications that let the new equipment perform to its rating.
In newer construction, the ductwork is usually in better shape, so our attention shifts to matching a variable-speed system with zoning and air quality accessories. Because All Temp Heating & Air Conditioning sells and installs quality furnaces, air conditioning, boilers, air purifiers, humidifiers, ventilation, and water heaters, we can integrate your new furnace with the rest of your comfort system rather than treating it in isolation. A furnace paired with a whole-home humidifier, for example, makes a dry Lemont winter far more comfortable and helps protect wood floors and furniture.
We also serve homeowners who are replacing a failed furnace on short notice and those planning ahead for an efficiency upgrade. In an emergency replacement, we move quickly to restore heat while still respecting every safety and commissioning step. For planned upgrades, we can coordinate the furnace installation with an air conditioner or water heater project so the work is done efficiently in fewer visits.
Why Lemont Homeowners Choose All Temp Heating & Air Conditioning
Choosing an installer is really choosing who will stand behind your comfort for the life of the equipment. We built our reputation across Chicago, Bolingbrook, Skokie, Evanston, Lincolnwood, Morton Grove, Niles, Park Ridge, Woodridge, and Darien, IL by combining technical precision with genuine attention to each family we serve. Our team explains the work in plain language, respects your home, and follows through after the installation is complete. That consistency is why so many families across the Chicago area return to us and recommend us to their neighbors.
As a family owned and operated company, we understand that a furnace purchase is a significant decision. We do not push equipment you do not need, and we never cut corners on the details that determine long-term performance. From the first heat load calculation to the final safety check, our goal is a furnace installation that delivers reliable, even, efficient heat through every Lemont winter. When you are ready to plan your new furnace, All Temp Heating & Air Conditioning is here to help you make the right choice and install it correctly the first time.