Customer Sign In • Call Tracker

High Efficiency Gas Furnaces

Natural Gas Furnaces and Propane Furnaces are the most popular sources of heat in Wisconsin. We sell Amana & York Furnaces that operate between 95 to 98% efficient. 95% means that means of every dollar you put in, only 5¢ gets vented out as exhaust. That's big savings over the 60-80% efficient furnaces of the past. The savings really add up!

Below is our current offering of High Efficiency Furnaces. If you have any questions on the products please do not hesitate to reach out to us via phone at (920) 734-1436 or email us at sales@goodguyswi.com

Upgrade your furnace and ac together and save $500 to $700 instantly!

Tax Credits expire end of 2025. Don't miss out on up to $600 in tax credits on furnaces.
GUIDE: Choosing the right furnace for your home.
GUIDE: Converting from Oil to Gas Equipment
Schedule a No-Pressure Estimate Online

What's the difference? We break down all the differences in this single page handout between our different models. Check it out!

Amana AMVM Modulating Furnace
Amana Fully Modulating
Warranty: 10 Year Parts & Labor
One-time Unit Replacement Limited
Get pricing for your home.
Use our NEW System Builder!
  • Fully Modulating Operation
  • Up to 98% Efficient
  • True Variable Speed Motor
  • S-Series Compatible Equipment
  • Comfort Bridge System
  • Qualifies for up to $100 Focus Rewards
  • Qualifies for up to $600 Tax Credit
  • Financing Options Available

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing! View Literature View Spec Sheet Manufacturer Site
Amana AMVC Two Stage True Variable Speed Gas Furnace
Amana Two-Stage Variable
Warranty: 10 Year Parts & Labor
One-time Unit Replacement Limited
Get pricing for your home.
Use our NEW System Builder!
  • Two Stage Operation
  • Up to 96% Efficient
  • True Variable Speed Motor
  • S-Series Compatible Equipment
  • Comfort Bridge System
  • Financing Options Available

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing! View Literature View Spec Sheet Manufacturer Website
Amana Two Stage Standard Blower
Amana Two-Stage Standard
Warranty: 10 Year Parts & Labor
One-time Unit Replacement Limited
Get pricing for your home.
Use our NEW System Builder!

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing!View LiteratureView Spec Sheet Manufacturer Site
Amana AM9S Single Stage Furnace
Amana Single-Stage Standard
Warranty: 10 Year Parts & Labor
One-time Unit Replacement Limited
Get pricing for your home.
Use our NEW System Builder!

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing!View LiteratureView Spec Sheet View Manufacturer Website
York Two Stage Gas Furnace
York Two-Stage Furnace
Warranty: 10 Yr Parts, 1 Yr Labor
20 Year Heat Exchanger Warranty
Get pricing for your home.
Use our NEW System Builder!
  • Two Stage Operation
  • Up to 97% Efficient
  • Fixed Speed Blower Motor
  • Qualifies for up to $600 in tax credits (25C)
  • Financing Options Available

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing!View LiteratureView LiteratureView Manufacturer Website
York Single Stage Furnace
York Single-Stage Furnace
Warranty: 10 Yr Parts, 1 Yr Labor
20 Year Heat Exchanger Warranty
Get pricing for your home.
Use our NEW System Builder!

Customize and Build Furnace, Air Conditioner, and Heat Pump Systems with instant pricing!View LiteratureView LiteratureView Manufacturer Website
The name trusted by over 32,000 homeowners in the Fox Valley. A fifth generation family tradition, since the 1920s.

Award Winning Customer Service, Seal of Goodness Guarantee since 1966. No Pressure Promise! We do not utilize any high pressure tactics in our sales process, ever.

Address: 4450 W Greenville Drive. Appleton, WI 54913
Phone: (920) 734-1436 Fax: (920) 734-0929
Hours of Operation: 8:00a to 4:30p (Mon-Fri)

©2025 Christensen & Wisnet Inc. (d/b/a) The Good Guys Heating & Cooling

Privacy Policy | No Pressure Promise | Careers / Jobs

Employee: Office Email | Payroll Login | Sales Login | ServiceDesk | System Status