90%+ HIGH EFFICIENCY RESIDENTIAL GAS FURNACES

WUN/WND/W9M (Single-Stage)

WUN/WND "High Efficiency" Series (Single-Stage)

 

The WUN/WND/W9M Series furnaces are designed to save you money on utility bills. The condensing gas furnace may be installed as a single pipe system, using indoor air for combustion, or as a 2-pipe sealed combustion system, bringing in fresh outdoor air for combustion. Since the flue gases are at a much lower temperature, the furnace may be vented vertically or horizontally with schedule 40 PVC or ABS pipe. Plus, the unit is Air Conditioning ready with an adjustable speed blower motor for maximum comfort.  These furnaces are factory assembled, wired and tested to assure safe, dependable and economical operation. Designed for both residential and commercial installations.

 

When matching with an A/C System, make sure to match the evaporator coil case width to the width of the furnace.  (The width of the furnace is shown in bold  in the specifications listed below.)

 

For assistance deciding what type of furnace to select, see our page on Heating Basics.

 

 2-Stage High Efficiency Furnaces are also available.

 

5 Year Limited Replacement Parts Warranty20 Year Limited Heat Exchanger WarrantyEnergy Star LogoISO 9001 CERTIFIEDGama CertifiedAGA and CSA Approved

   

FEATURES


  • Natural gas ready; LP convertible with optional kit listed below

  • Self-diagnostic control module saves time on servicing and troubleshooting

  • Electronic hot surface ignition increases safety and efficiency

  • Direct Drive, permanently lubricated blower motor has adjustable speed to maximize comfort level

  • Induced combustion system with sealed, in-shot main burners for quiet, efficient operation

  • May be vented horizontally or vertically with Schedule 40 PVC pipe

  • Tubular aluminized steel primary heat exchanger, with stainless steel secondary heat exchanger

  • The W9M Series furnace delivers 95% AFUE (not all BTU sizes available, see below)

  • Energy Star® Compliant

     

    Approved for use in California by the CEC

    Not Certified for Mobile Home Use

HOW TO SELECT A 90%+ EFFICIENT GAS FURNACE

Estimating the Furnace Size

Estimate the Heating and Cooling Size for your home.

You can refer to an estimate or proposal from a local contractor, refer to the size of your existing system that you may want replaced, or use the sizing estimation chart provided on this page.

 

Use the map to determine your Region based on the location of your home. Using the equipment charts, find your Region and go down the column to locate the range that covers the Square Footage of your home. Follow the row to the right to determine the recommended Furnace for your application.

NOTE: These tables and charts are intended to be used as a guideline only. The information is based on conventional window space (<15%), insulation and building construction. Only use these tables as a reference. When including a finished basement, use 1/2 of the finished basement square footage with the rest of the area being calculated.

 

90%+ AFUE GAS FURNACE SELECTION GUIDE

SQUARE FOOTAGE OF YOUR HOME

FURNACE SIZE

REGION 1

REGION 2

REGION 3

REGION 4

REGION 5

900-1325 975-1450 1100-1600 1325-1950 1500-2200

60,000 BTU

1325-1800 1450-1950 1600-2175 1950-2650 2200-2950

80,000 BTU

1800-2275 1950-2450 2175-2700 2650-3325 2950-3750

100,000 BTU

2275-2725 2450-2950 2700-3300 3325-4000 3750-4500

120,000 BTU


60,000 BTU Gas Furnace

(Choose One Furnace)

UPFLOW ONLY Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

W9M060-317

60,000/57,000

33 x 17.5 x 29.5

1.5-3.0

16.375 x 20

150

DOWNFLOW/HORIZONTAL Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

WND 060-3C

60,000/55,000

40 x 17.5 x 28.5

1.5-3.0

15.125 x 19.25

150


 

80,000 BTU Gas Furnace

(Choose One Furnace)

UPFLOW ONLY Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

WUN 080-3C

80,000/75,000

40 x 17.5 x 28.5

1.5-3.0

16.25 x 20

158

DOWNFLOW/HORIZONTAL Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

WND 080-3C

80,000/75,000

40 x 17.5 x 28.5

1.5-3.0

15.125 x 19.25

158


 

100,000 BTU Gas Furnace

(Choose One Furnace)

UPFLOW ONLY Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

W9M100-421

100,000/95,000

33 x 21 x 29.5

2.5-4.0

19.875 x 20

178

DOWNFLOW/HORIZONTAL Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

WND 100-5C

100,000/95,000

40 x 21 x 28.5

3.5-5.0

18.5 x 19.25

178


 

120,000 BTU Gas Furnace

UPFLOW ONLY Applications

Item #

Input/Output BTU

Dimensions (in.)

(h x w x d)

Avail.

Tons

Outlet

(w x d)

Wt.

(lbs.)

WUN 120-5C

120,000/112,000

40 x 24.5 x 28.5

3.5-5

23.25 x 20

195


OPTIONAL ACCESSORIES

Item #

Description

Wt.

(lbs.)

LP 347

LP (Propane) Conversion Kit

1

CB 417

17.5" Combustible Base - For Downflow (Heat Only) Applications

For floors constructed of combustible material.

9

CB 421

21" Combustible Base - For Downflow (Heat Only) Applications

For floors constructed of combustible material.

10

WKDP 20

Universal Trim-to-Fit Plenum (Heat Only) Applications

For Furnace Openings up to 20"w x 20"d.

28

RA 16

Return Air Drop - For Upflow Applications Only

50

Additional Heating and Cooling Accessories


 

Available PDF downloads for:

WUN/WND/W9M - 90%+ Efficiency Gas Furnaces

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