
98% AFUE systems installed by NATE-certified techs in Larimer County
High-Efficiency Furnace Installation Loveland CO for Cold Colorado Winters
High-Efficiency Furnace Installation Loveland CO means a 95% to 98.5% AFUE furnace sized to your home with a Manual J load calculation, not a guess. We install Carrier, Trane, Lennox and Rheem systems across Loveland, Colorado, usually in one day. If your old furnace is short cycling, blowing cold air, or costing you $200-plus a month in gas, a high-efficiency furnace replacement Loveland CO homeowners trust starts with a free in-home heat-loss check.
What's included
What Is Included in Your High-Efficiency Furnace Installation
Every install we do in Loveland includes the equipment, the labor, the permit, the flue and condensate work, the thermostat, the combustion testing, and the rebate filing. If your job needs duct modifications, a new flue liner, or a condensate pump, we quote that upfront so there are no surprises on install day.
New High-Efficiency Furnace
A 95% to 98.5% AFUE condensing furnace from Carrier, Trane, Lennox, Rheem, Goodman, York, Bryant, or American Standard, sized to your home with a Manual J load calculation. Includes the manufacturer parts warranty and registration.
Flue and Intake Installation
New PVC flue pipe and combustion air intake run to code, with proper slope for condensate drainage. If your existing chimney needs a liner, we quote that separately and complete it in the same visit.
Condensate Management
Condensate drain line routed to a floor drain, utility sink, or condensate pump, with a trap and freeze protection. High-efficiency furnaces produce 1 to 2 gallons of water per day in winter, so this has to be done right.
Thermostat and Controls
A new programmable or smart thermostat wired, mounted, and programmed for your schedule. We set up multi-stage and variable-speed staging so the furnace runs at the right output for the outdoor temperature.
Combustion Testing and Commissioning
Combustion analyzer testing on the flue for CO and O2, manometer check on gas pressure, thermometer check on temperature rise, and multimeter check on the control board. You get the commissioning report with your paperwork.
Permit and Rebate Filing
We pull the City of Loveland mechanical permit, schedule the inspection, and file the Xcel Energy rebate and federal tax credit paperwork. You get copies of everything for your records.
Service overview
What High-Efficiency Furnace Installation Loveland CO Involves
High-Efficiency Furnace Installation Loveland CO is a full HVAC upgrade that replaces your existing furnace with a condensing unit rated 95% AFUE or higher, plus a new flue pipe, condensate drain, and matched thermostat. We pull the old unit, verify the heat exchanger and gas valve on the outgoing furnace, run a Manual J load calculation on your square footage and window orientation, then set the new furnace on a level pad. Every install includes combustion analyzer testing at the flue, a manometer check on gas pressure, and a multimeter pass on the low-voltage board before we sign off.
Most Loveland homes built before 1995 still run 80% AFUE furnaces that lose 20 cents on every heating dollar up the flue. In a 2,000-square-foot home off Boyd Lake or Mariana Butte, that gap runs $180 to $340 per heating season. A high efficiency furnace installation in Loveland, Colorado also fixes the comfort problems you have been living with: cold bedrooms over the garage, short cycling at 4 a.m., and a blower motor that never quite keeps up on a 5-degree night. We handle the permits, the Colorado HVAC license paperwork, and the Xcel rebate filing so you are not chasing forms.
The service timeline
Our High-Efficiency Furnace Installation Process
The process flexes to the condition, but these checkpoints keep decisions clear.
In-Home Assessment
We measure every room, check window orientation, insulation R-value, and existing duct sizing. A Manual J load calculation tells us the exact BTU output your home needs, so we never oversize the furnace. Oversized units short cycle, wear out blower motors early, and cost more to run. This visit takes 45 to 60 minutes and the quote is free.
Equipment Selection
We walk you through Carrier, Trane, Lennox, Goodman, Rheem, York, Bryant and American Standard options at 95%, 96%, and 98% AFUE. You pick the efficiency tier and features you want, like a variable-speed blower or a two-stage gas valve. We quote the full job, including permit, flue, and thermostat, before you commit.
Permit and Prep
We pull the City of Loveland mechanical permit and schedule the install. On install day we lay drop cloths, shut off the gas at the meter, and disconnect the old furnace. If your flue needs a new liner or your condensate drain needs a pump, we handle it in the same visit.
Installation Day
The new furnace goes in, the flue pipe and intake are run to code, the condensate line is routed to a floor drain or pump, and the thermostat is wired and mounted. We torque gas connections, leak-test with a manometer, and set gas pressure to the manufacturer spec. Most installs run 6 to 9 hours.
Testing and Walkthrough
We fire the furnace and run a combustion analyzer on the flue to verify CO and O2 levels, check temperature rise with a thermometer, and confirm the blower motor amp draw with a multimeter. Then we walk you through the thermostat, filter schedule, and warranty registration. You get the rebate paperwork the same day.
Tools & methods
Tools and Methods We Use on Every Install
Purpose-built equipment, used by trained technicians, so the job is done accurately the first time.
Combustion Analyzer
Measures CO, O2, and flue temperature to verify the furnace is burning clean and hitting its rated AFUE. We test every install before we leave, and we leave the printout with you.
Manometer
Checks gas inlet and manifold pressure, plus duct static pressure. At Loveland altitude, gas pressure has to be set to the manufacturer's high-altitude spec or the furnace runs rich and soots up.
Multimeter
Tests the control board, igniter, flame sensor, blower motor amp draw, and low-voltage wiring. Catches wiring problems before they turn into lockouts mid-winter.
Inspection Camera
Lets us look inside the heat exchanger and flue on the outgoing furnace, so we can tell you honestly whether a repair or replacement is the right call.
Thermometer and Vacuum Gauge
Verifies temperature rise across the heat exchanger and checks refrigerant charge on any paired AC or heat pump. Both are part of our commissioning checklist.
Nut Driver Set and Fin Comb
For cabinet work, panel removal, and cleaning the evaporator coil fins when we pair a furnace install with AC service. Small tools, but they keep the job clean and the airflow right.
Use cases
When Loveland Homeowners Call Us for High-Efficiency Installation
These examples show how the service framework adapts rather than forcing every call through one repair.

Centerra Modulating Install with Duct Fix
A 2,400-square-foot Centerra home with a 100,000 BTU single-stage furnace that ran constantly but could not keep the upstairs warm. Duct static pressure was 0.9 inches, well over the 0.5-inch target. → We installed a 98% AFUE Carrier modulating furnace with a variable-speed blower, sealed the duct leaks with duct sealant, and added a return air drop. Static pressure dropped to 0.55 inches and the upstairs now heats evenly.
Downtown Loveland Rental Turnaround
A rental property in Downtown Loveland with a 22-year-old furnace that failed inspection. The chimney was not rated for PVC venting and the condensate drain had nowhere to go. → We installed a 96% AFUE Rheem furnace, ran a new PVC flue and intake through the sidewall, and added a condensate pump routed to the utility sink. Install finished in one day and the tenant moved in that weekend.
Problems we solve
Problems a High-Efficiency Furnace Installation Solves
If your furnace is blowing cold air, short cycling, making banging noises, or leaking water, a repair might buy you a season. But if the unit is 15 years or older and the repair bill is climbing, a high-efficiency replacement fixes the problem for good and cuts your gas bill at the same time.
Furnace short cycling every 10 to 15 minutes
An oversized or failing furnace is usually the cause. We run a Manual J load calculation, size the new high-efficiency furnace correctly, and install a two-stage or modulating unit that runs longer at lower output. No more cycling, no more cold spots, and the equipment lasts years longer.
Gas bills climbing every winter
A 95% to 98.5% AFUE condensing furnace captures that waste heat and puts it into your home. We install the unit, tune gas pressure for Loveland altitude, and file the Xcel rebate. Most customers see the gas bill drop 20% to 35% the first winter.
Furnace blowing cold air or not igniting
We diagnose with a multimeter and combustion analyzer, then decide whether a repair or replacement makes more sense. If the heat exchanger is cracked or the repair bill tops $2,000, we quote a high-efficiency replacement and usually install within a week.
Furnace leaking water or condensate
We clear the drain, reseal or replace the collector box, and check the flue slope. If the furnace is old and the leak has already caused rust, we quote a high-efficiency replacement with a properly routed condensate line and freeze protection.
Pricing process
High-Efficiency Furnace Installation Cost in Loveland
$4,200 - $8,500 installed, depending on size, AFUE tier, and any flue or duct work needed
Furnace Size and BTU
A 60,000 BTU furnace for a 1,200-square-foot home costs less than a 120,000 BTU unit for a 3,000-square-foot home. We size with a Manual J load calculation, so you pay for the capacity you actually need, not a rule-of-thumb guess.
AFUE Efficiency Tier
A 95% AFUE single-stage furnace sits at the low end. A 98% AFUE modulating unit with a variable-speed blower sits at the top. The price gap is usually $1,200 to $2,500, and the higher tier pays back faster in a cold Loveland winter.
Flue and Venting Work
High-efficiency furnaces vent through PVC, not the old metal flue. If your chimney needs a liner or you need a new sidewall penetration, that adds $400 to $1,200. We quote it upfront so there are no surprises.
Customer reviews
What Loveland Homeowners Say About Our Installs
“Our 1998 furnace was short cycling every 10 minutes and our January gas bill hit $310. Loveland FurnaceRepair ran a Manual J, quoted a 97% Trane two-stage, and installed it in one day. First full month after install, gas bill dropped to $185. They filed the Xcel rebate for us and we got $600 back. Clean install, no mess, and the tech walked me through the thermostat.”
“We had cold bedrooms over the garage for years. Two other companies just quoted bigger furnaces. Loveland FurnaceRepair actually measured the house, checked the ducts, and recommended a 98% Carrier modulating unit with a variable-speed blower. Bedrooms are within 2 degrees of the thermostat now. Install took 8 hours and they cleaned up better than they found it.”
“I manage six rentals in Loveland and needed a high-efficiency furnace replacement in one of them before the tenant moved in. Called on a Tuesday, had a quote Wednesday, and the install was done Friday. They handled the permit, the flue liner, and the rebate paperwork. Furnace has run two winters without a single call. I use them on all my properties now.”
Questions before we arrive
Frequently Asked Questions About High-Efficiency Furnace Installation

How much does High-Efficiency Furnace Installation Loveland CO cost?
Most Loveland installs run $4,200 to $8,500 in 2026, depending on furnace size, AFUE tier, and whether ductwork or flue changes are needed. A basic 95% AFUE single-stage unit in a 1,800-square-foot home lands near the low end. A 98% modulating furnace with a variable-speed blower and new flue liner pushes toward the top. We quote the full job in writing before you commit.
Is High-Efficiency Furnace Installation Loveland CO worth it?
Yes, if you plan to stay in your home more than four years. A 98% AFUE furnace saves $220 to $380 per heating season over an 80% unit in a typical Loveland home, and Xcel rebates plus federal tax credits knock $400 to $1,200 off the upfront cost. After that, you are ahead every winter, and the comfort difference is immediate.
Who installs high-efficiency furnace near me in Loveland?
Loveland FurnaceRepair installs high-efficiency furnaces across Loveland, Larimer County, and the surrounding Front Range. We are NATE-certified, EPA Section 608 certified, and licensed in Colorado. Call 970 489 0849 and we can usually schedule a free in-home assessment the same day, including evenings and weekends during heating season.
How long does high-efficiency furnace installation take in Loveland?
A standard swap runs 6 to 9 hours, so most Loveland homeowners have heat back the same evening. If we need to run a new flue liner, add a condensate pump, or modify ductwork, plan on a second day. We tell you the expected timeline when we quote the job, and we do not leave you without heat overnight unless you approve it.
Ready when you are
Get Your High-Efficiency Furnace Installation Loveland CO Quote
Call 970 489 0849 and we will schedule a free in-home assessment, usually the same day. You get a written quote with the exact model, AFUE rating, and full scope, plus the rebate paperwork handled for you. Licensed, insured, and warrantied in Colorado.

Talk with the local team
Request High-Efficiency Furnace Installation
Call 970 489 0849 any time, day or night. We answer live for emergency no-heat calls and book standard service Monday through Friday, 8 a.m. to 6 p.m. Most Loveland calls get a same-day window, and we text you when the tech is on the way.


