Fort Collins sits at about 5,000 feet above sea level, and that altitude, combined with rapid temperature swings, can put extra demand on a heating system. In older homes, in newer construction with tighter envelopes, and in homes dealing with uneven airflow between floors or rooms, furnace sizing and installation details matter more than many homeowners realize. A furnace that is not matched correctly to the home will not heat as evenly or efficiently as it should.
Hooley Heating & Air Conditioning installs and replaces furnaces throughout Fort Collins and the surrounding Front Range. Our experienced HVAC installers handle system sizing, venting, airflow, and installation details carefully so the furnace is ready to perform reliably through the coldest stretches of the season.
Furnace Installation and Replacement Services Near You
New installs and replacements cover different situations. A new install goes into a home that has never had a furnace, has switched energy sources, or is being built or remodeled. A replacement swaps an aging or failing unit for a system matched to the home’s current needs. In both cases, the key decisions usually come down to fuel type, system size, efficiency, and how the furnace will perform in the home day to day.
Furnace Installation
For a new install, our installers assess square footage, insulation, window exposure, and existing ductwork before specifying a system. The goal is a furnace right-sized for Fort Collins conditions, not oversized (which short-cycles and wastes fuel) or undersized (which runs constantly during cold snaps).
Furnace Replacement
When an existing furnace is past its useful life, replacement is often more cost-effective than continued repairs. We evaluate the current system’s age, efficiency, repair history, and whether existing venting and ductwork can support a higher-efficiency unit. If the new furnace requires updates to venting or related system components, we account for that as part of the installation plan.
Repair or Replace Evaluation
If the system is still working but you are weighing whether to repair or replace, we provide a written evaluation with the honest tradeoffs. For newer furnaces with a single failed component, furnace repair is usually the better path.
Gas vs Electric Furnaces
Most Fort Collins homes run on natural gas, and gas furnaces remain the most common choice because operating costs are often lower across the heating season. Electric furnaces are a practical option for homes without gas service or for limited applications. In some homes, a heat pump may also be worth comparing depending on the layout, insulation, and long-term efficiency goals.
Gas Furnaces
Natural gas furnaces deliver strong heat output and handle Fort Collins cold snaps well. They remain a practical choice for many homes because they can deliver steady heat during colder weather while keeping seasonal operating costs more manageable. Getting the sizing and installation details right is one of the most important parts of selecting the system.
Electric Furnaces
Electric furnaces are simpler to install, require no venting, and have no combustion byproducts. They are a fit for homes without gas service, secondary structures, or finished spaces where running a gas line is impractical. Operating costs are higher than gas in most months.
Efficiency Ratings and Staging
Efficiency is measured in AFUE (Annual Fuel Utilization Efficiency) for gas furnaces. Standard units run around 80% AFUE, while high-efficiency condensing units run 90% to 98% AFUE. Higher AFUE costs more upfront and requires different venting, but it can help lower monthly gas bills over time. Staging also matters:
- Single-stage furnaces: Run full-blast whenever they are on.
- Two-stage units: Can run at a lower output for mild days.
- Modulating furnaces: Adjust continuously for the most even temperatures and quietest operation.
Our Furnace Installation Process
Each install follows a set sequence, so nothing gets skipped, and the system is ready for a long service life.
- In-home assessment: measuring square footage, evaluating insulation, inspecting existing ductwork and venting, and confirming gas or electrical service capacity.
- System selection: recommending a make, model, size, and efficiency tier based on the assessment and your budget.
- Permit: handling required local permitting when needed.
- Removal: disconnecting and safely removing the old equipment and disposing of it responsibly.
- Installation: setting the new unit, connecting fuel and electrical, installing or updating venting, and adjusting ductwork as needed.
- Commissioning: verifying operation, airflow, and thermostat settings so the system is ready for regular use.
- Inspection: walking you through the new system and confirming everything is operating the way it should.
What to Consider Before Installing a New Furnace
A few decisions shape the outcome more than the rest:
- Correct sizing for Fort Collins conditions, not a general estimate based on square footage alone
- Fuel type (gas, electric, or pairing a heat pump with a gas backup)
- AFUE rating and whether the higher upfront cost fits your expected years in the home
- Single-stage, two-stage, or modulating operation
- Compatibility of existing ductwork and venting with the new system
- Whether to upgrade the thermostat at the same time
Signs It Might Be Time to Replace
Most furnaces in our area last 15 to 20 years with regular service. The following usually point toward replacement instead of continued repair:
- Age past 15 years combined with rising repair frequency
- Rising gas bills with no change in thermostat habits
- Uneven heat between rooms or floors that ductwork adjustments have not solved
- New noises like booming, rattling, or rumbling on startup
- A cracked heat exchanger was identified during a service call
Benefits of a New Furnace
A new furnace changes day-to-day comfort and monthly operating costs. Many homeowners notice steadier temperatures, quieter operation, and lower heating bills after replacing an older system with a properly sized newer model. A properly sized modern system also runs less frequently on mild days, which extends its useful life.
Why Homeowners in Fort Collins Choose Hooley
Choosing the installation team matters as much as choosing the equipment. A high-efficiency furnace installed incorrectly will not deliver its rated performance.
- Sizing and commissioning done to manufacturer’s spec and matched to the home’s heating needs
- Experienced HVAC installers who handle gas, electric, and high-efficiency condensing installs
- Transparent pricing before work begins
- Scheduling that respects your time and clear communication throughout the job
- Local team familiar with Fort Collins housing stock, from older homes near Old Town to newer construction south of Harmony
Fort Collins Furnace Installation FAQS
How long does a furnace installation take?
Most standard installations can often be completed within a day, depending on the system and the home. Jobs that require venting changes, ductwork modifications, or a fuel-source conversion can run longer.
What size furnace does my home need?
Sizing is based on the home’s heating load, including square footage, insulation, window area, and airflow conditions. Rules of thumb based on square footage alone tend to oversize the system.
How long do furnaces last?
With regular maintenance, most furnaces run 15 to 20 years. System lifespan depends on maintenance, usage, installation quality, and how hard the furnace has to work through the heating season.
Can I switch from electric to gas?
Yes, if natural gas service is available at your home. The conversion requires running a gas line, adding venting, and updating the electrical. We can evaluate what that change would involve and whether it makes sense for the home.
Do I need a permit?
Local permit requirements can apply to furnace installation and replacement work. We can explain what is needed as part of the estimate and installation process.
Are financing options available?
Financing is available on approved credit. We will go over terms at the estimate.
Professional Furnace Installation in Fort Collins
If your current furnace is aging, running inefficiently, or has stopped working, call Hooley Heating & Air Conditioning or request an estimate online. We will walk through the options for your home and give you a clear picture of what a new install looks like.
