A furnace is essential for central Alabama winters. Spencer Heating and Air handles complete furnace installation from sizing and equipment selection to professional installation, testing, and training. We ensure your system is properly sized, safely installed, and ready to keep your home warm. A well-installed furnace runs efficiently and safely for 15–20+ years.
Schedule a free in-home assessment to evaluate heating needs and provide transparent pricing. We evaluate your home’s size, insulation, and current system to recommend the right furnace for your needs and budget.
334-887-9020Five reasons Auburn homeowners trust Spencer for professional furnace installation. Click any card to read the detail.
We calculate heating requirements based on your home’s insulation, size, and climate.
Correct sizing ensures reliability and efficiency. An oversized furnace short-cycles and wastes energy. An undersized furnace runs constantly and never reaches comfortable temperatures. We perform Manual J load calculations to get it right.
Furnaces involve combustion and carbon monoxide risk. We verify proper venting, test for leaks, and ensure all safety systems function.
Gas furnaces require proper venting to prevent carbon monoxide buildup. We test all connections, verify exhaust venting, and check safety controls before startup. Your family’s safety is our top priority.
EPA-compliant installation, proper electrical service, complete testing before handoff.
Every installation follows manufacturer specifications and local codes. We handle permits, inspections, and ensure your new furnace meets all safety and efficiency standards. No shortcuts, no compromises.
We explain all costs upfront. No surprises or hidden fees.
You see equipment costs, labor, permits, and any additional work before we start. We provide written estimates and stick to our pricing. What we quote is what you pay.
Spread the cost over time with Wells Fargo financing options.
Don’t let upfront costs delay your comfort. We offer multiple financing options with competitive rates and flexible terms. Get your new furnace installed now and pay over time.
Tap a factor to see why it matters for your installation.
An oversized furnace short-cycles, wasting energy and creating uneven temperatures. An undersized furnace runs constantly and never reaches comfortable temperatures. We perform Manual J load calculations based on your home’s square footage, insulation, windows, and climate zone.
What we measure: square footage, ceiling height, insulation levels, window count and type, air leakage, and local climate data.
Sizing Method
Manual J Calculation
Industry standard for accurate heating load calculation.
AFUE (Annual Fuel Utilization Efficiency) measures how much of your gas dollar goes to heating your home. An 80% AFUE furnace converts 80% of gas to heat. A 95% AFUE furnace converts 95% of gas to heat, reducing your utility bills.
Payback calculation: we show you the cost difference between efficiency levels and calculate how long it takes for energy savings to pay for the upgrade.
Efficiency Options
80% to 95% AFUE
Higher efficiency means lower operating costs.
Gas furnaces produce combustion gases that must be safely vented outside. High-efficiency furnaces (90%+ AFUE) use PVC venting. Standard efficiency furnaces use metal venting. We ensure proper venting for safety and code compliance.
Safety first: improper venting can cause carbon monoxide buildup. We test all connections and verify proper exhaust flow.
Venting Type
PVC or Metal
Depends on furnace efficiency level.
Modern furnaces need electricity for the blower, ignition, controls, and thermostat. We verify your electrical panel has adequate capacity and install proper circuits if needed. Some high-efficiency furnaces require 220V service.
What we check: panel capacity, available circuits, proper grounding, and electrical code compliance.
Power Requirements
110V or 220V
Depends on furnace model and features.
Your furnace needs adequate gas supply for proper operation. We verify your gas line size and pressure, and upgrade if necessary. All gas connections are tested for leaks and code compliance.
Safety testing: we use electronic leak detection and soap testing to ensure all gas connections are secure before startup.
Gas Supply
Adequate Pressure
Verified and tested for safety.
Existing ductwork may need cleaning, sealing, or replacement. We evaluate duct condition, size, and layout. Properly sized and sealed ducts ensure efficient heat delivery to every room.
What we check: duct size, insulation, air leaks, and overall condition. We recommend cleaning or replacement if needed.
Ductwork Status
Evaluated
Cleaned, sealed, or replaced as needed.
Professional installation from assessment through training. Every Spencer furnace installation follows the same eight-step process to ensure safety, efficiency, and reliability.
We evaluate your home’s size, insulation, window count, current system age, and heating needs. We measure square footage and note any cold zones or comfort issues to properly size your new furnace.
We recommend furnaces with various efficiency levels and price points. We explain AFUE ratings (heating efficiency), explain the payback period for upgrades, and provide transparent pricing.
Once you approve equipment and pricing, we schedule installation. We coordinate delivery and ensure our team has everything needed for a smooth installation day.
Our team safely removes the old furnace and disposes of it properly. We disconnect gas, electrical, and venting connections following safety protocols.
We install the new furnace, connect gas lines, exhaust venting, and electrical service. All connections are tested for integrity and safety before proceeding to startup.
We perform carbon monoxide leak testing, verify proper venting, and check all safety controls. Gas connections are tested with electronic leak detection equipment.
We start the furnace, verify proper ignition, confirm heat delivery, test the thermostat integration, and verify all electrical and gas connections are safe and functioning properly.
We train you on thermostat operation, filter replacement, maintenance needs, and provide warranty documentation. You’ll know how to operate and maintain your new furnace.
Our maintenance members enjoy priority scheduling, consistent system performance, and the confidence that comes from knowing a trained professional is keeping an eye on their equipment throughout the year.
What’s Included In Our Maintenance Plan?
We know that a new HVAC system or a major repair can be a significant investment. That is why Spencer Heating and Air works with trusted lending partners to make quality comfort accessible to every homeowner. We want you to make the best decision for your home — not the cheapest one because of budget pressure.
Why Consider Financing?
Hover over the section to see the full list. From basic replacement to high-efficiency upgrades, we handle every type of furnace installation.
Whether you’re replacing an old furnace or installing a new system, our technicians ensure proper sizing, safe installation, and optimal performance. We explain your options and help you choose the right furnace for your needs and budget.
Replace your old furnace with a similar-sized unit. Uses existing gas line, electrical, and venting. Most cost-effective option when current system is properly sized.
Upgrade to 90%+ AFUE for lower operating costs. May require new venting (PVC instead of metal). Higher upfront cost with ongoing energy savings.
Manual J load calculation to right-size your furnace. Prevents short-cycling and ensures even temperatures. May require different size than old unit.
Install programmable or smart thermostat with your new furnace. Optimize comfort and efficiency with scheduling and remote control features.
Replace or seal existing ductwork during furnace installation. Ensures proper airflow and eliminates energy waste from leaky ducts.
Combine gas furnace with electric heat pump for maximum efficiency. System automatically switches between gas and electric based on outdoor temperature.
Typically 4–8 hours. We’ll estimate during consultation. Direct replacements are faster. High-efficiency upgrades requiring new venting take longer. Most installations are completed in a single day.
Higher AFUE (efficiency) means lower operating costs. 95% AFUE furnaces cost more upfront but save money through lower gas bills. We calculate the payback period so you can decide. High-efficiency units also require different venting.
Most often yes. We evaluate both systems and electrical capacity. If the AC is newer, we can pair it with a new furnace. If both are old, we may recommend replacing both for better efficiency and reliability.
We evaluate existing ductwork. If it’s in good condition, we clean it. If it’s deteriorated, we discuss replacement options. High-efficiency furnaces may require new exhaust venting (PVC instead of metal).
Yes. Modern furnaces need power for the blower, ignition, controls, and thermostat. We ensure your electrical service is adequate. Some high-efficiency models require 220V service.
Depends on efficiency level and installation complexity. Schedule a free estimate for pricing. We offer transparent pricing with no hidden fees. Financing options are available.
Yes. Wells Fargo offers flexible terms. See financing options for details on rates and terms. Don’t let upfront costs delay your comfort.
Most equipment includes 10-year manufacturer warranty on the heat exchanger and 5-year parts warranty. We include 1-year labor warranty on our installation work. Extended warranties are available.
An annual furnace tune-up before the heating season is recommended. Join our maintenance plan for automatic scheduling and priority service. Regular maintenance extends furnace life and maintains efficiency.
Most people set furnaces to 68–72°F. Lower temperatures reduce costs. Programmable thermostats optimize comfort and efficiency by automatically adjusting temperature based on your schedule.
Spencer Heating and Air operates from two convenient locations to serve communities across East Alabama. Whether you live in the heart of Auburn or along the shores of Lake Martin, our team is never far away.
Our Jackson’s Gap location brings Spencer service to the entire Lake Martin region — tailored for lake homes, vacation properties, and the seasonal startup-shutdown cycle that lakefront living demands.
Call Jackson’s Gap Location 256-373-3165Our Lake Martin team understands the realities of lakefront properties — humidity loads, seasonal idle periods, and the fast response a weekend at the lake deserves.
Book Service at Lake Martin Location
For over 55 years, Spencer Heating and Air has set the standard for honest, expert HVAC service in Auburn, AL and the Lake Martin area. Our customers keep coming back because they know they can count on us — for fair pricing, skilled workmanship, and the kind of genuine care that only comes from a family-owned business with deep roots in the community.
Whether you need a brand-new American Standard system, a quick repair, or a comprehensive maintenance plan, we are here and ready to help. Do not settle for anything less than the best — your home and your family deserve it.
Spencer Heating and Air provides professional furnace installation with proper sizing, safety testing, and transparent pricing. We ensure your new furnace is correctly installed and ready to keep your Auburn home warm all winter long.
