EcoTemp 80% Single Stage 135K BTU Gas Furnace, WFER135D060C
The WFER135D060C tops the EcoTemp WFER range: 132,000 BTUH of natural gas input, 107,000 BTUH of output at 80.00% AFUE, six monoport burners, and the widest cabinet in the series at 24-1/2 in. A 3/4 HP five-speed blower with an 11 x 11 in. wheel moves 1760 CFM in heating and 1810 CFM in cooling behind a 5 ton condenser. It is the only size in the family that needs a larger flue — a 5 or 6 in. vent with an adapter between the furnace and the vent stack — which is the first thing to check when specifying it as a replacement.
Is a 135K BTU Gas Furnace the Right Size?
At 107,000 BTUH delivered this is a large-home or cold-climate furnace: sprawling floor plans, houses with substantial envelope loss, additions on a single system, or northern installations where design temperature is well below freezing. The 060 cooling code puts a 5 ton blower behind it. Its certified temperature rise range is 40°F to 70°F, the highest band in the line, reflecting the heat six burners put into the airstream.
Sizing at this capacity deserves particular care. A 132,000 BTUH input furnace in a home that only needs 80,000 will short cycle badly, and the oversizing penalty compounds with an 80% single stage burner that has no low-fire mode to fall back on. Run the heat loss calculation. Then confirm three things before ordering: that the gas supply and meter can carry 132,000 BTUH, that the vent can be adapted to 5 or 6 in., and that the mechanical space will take a 24-1/2 in. cabinet and a 167 lb unit.
Ideal for: Large homes with high heat loss, cold-climate installations, older properties with weak envelopes, and 5 ton system matches with room for a 24-1/2 in. cabinet.
Already at the top? The 135K is the largest furnace in the WFER series — compare the rest of the range on the 80% metal-vented furnace page, or consider a 92%+ PVC-vented condensing furnace where higher efficiency is worth the venting change.
Recommended applications are general guidelines only. Actual furnace selection depends on a calculated heat loss, duct design, venting, gas supply and local code. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Model Number | WFER135D060C — 80% AFUE Single Stage Multipoise Gas Furnace |
|---|---|
| Heating Input | 132,000 BTUH (Natural Gas) |
| Heating Output | 107,000 BTUH |
| Efficiency | 80.00% AFUE |
| Cabinet Width | 24-1/2 in. |
| Cooling Size | Up to 5 Ton / 60,000 BTUH |
| Airflow | 1760 CFM Heating / 1810 CFM Cooling |
| Blower Motor | 3/4 HP Direct Drive, 5 Speed, 11 x 11 in. Wheel |
| Burners | 6 Monoport |
| Certified Temperature Rise | 40°F – 70°F |
| Installation Positions | Upflow, Downflow, Horizontal-Left, Horizontal-Right |
| Ignition | Hot Surface Ignition |
| Electrical / Gas Connection | 115V-60Hz-1Ph, 10.7 Max Amps / 1/2 in. NPT |
| Vent Connection | 5 in. or 6 in. Required (Vent Adapter Needed) |
| Shipping Weight | 167 lb |
| Warranty | 1-Year Unit Replacement, 20-Year Heat Exchanger, 5-Year Parts (10-Year with Registration) |
The venting requirement is the key planning item: the 135 size needs a 5 or 6 in. vent, using an adapter between the furnace and the vent stack — see the installation instructions and browse ventilation pipe and accessories. The 24-1/2 in. cabinet takes external bottom filter rack NAHB00801FF with a 24 x 25 in. washable filter. Pair the cooling side with a 5 ton coil such as the EcoTemp W5AM61M24XA R-454B cased coil, whose 24-1/2 in. casing matches this cabinet exactly.
Furnace & Blower Features
WFER135D060C Heating & Controls
- 132,000 BTUH input and 107,000 BTUH output at 80.00% AFUE
- Six monoport burners — the most in the WFER line
- Hot surface ignition with electronic control center
- LED diagnostics and self-test feature standard
- Certified temperature rise 40°F to 70°F
- WhiteRodgers redundant gas valve, 1/2 in. NPT connection
- Size 43 factory orifice; propane conversion via AGAGC8NPS01A
- Solid state time operation heating blower control
- 20-year heat exchanger limited warranty
- Standard NOx configuration, AHRI certified
WFER135D060C Cabinet & Airflow
- 24-1/2 in. cabinet, the widest in the WFER series
- 22-7/8 in. supply outlet, 23 in. bottom inlet width
- 15-1/16 in. top and bottom flue collar
- 3/4 HP five-speed direct drive blower, 11 x 11 in. wheel, 8.8 FLA
- 1760 CFM heating and 1810 CFM cooling as shipped
- Gray cooling tap reaches 2065 CFM at 0.1 in. w.c.
- Certified external static pressure 0.20 heating / 0.50 cooling
- Requires 5 or 6 in. vent with adapter to the vent stack
- 10.7 max amps, 14 ampacity, 15 amp maximum breaker
- 167 lb shipping weight — plan for two-person handling
Specifications & Manuals
The dimensions table footnote states that the 135 size requires a 5 or 6 in. vent with an adapter between furnace and vent stack. Review the downflow vent configuration diagrams and the vent guard kit requirement in the installation instructions before planning a downflow install.
Frequently Asked Questions
What vent size does the WFER135D060C require?
A 5 in. or 6 in. vent, using a vent adapter between the furnace and the vent stack. Every other size in the WFER line uses a 4 in. connection, so this is the item most often missed when quoting a 135 as a replacement.
How much heat does the 135D060 actually produce?
132,000 BTUH input and 107,000 BTUH output at 80.00% AFUE. The "135K" name is the rounded nomenclature code; the certified input figure is 132,000.
How many burners does it have, and what temperature rise?
Six monoport burners, with a certified temperature rise range of 40°F to 70°F. Adjust the blower speed tap during commissioning to land inside that band.
How heavy is the WFER135D060C?
167 lb shipping weight, the heaviest in the series. Plan on two people and verify the access path, since the cabinet is also the widest at 24-1/2 in.
What blower is fitted to the largest WFER furnace?
A 3/4 HP five-speed direct drive motor with an 11 x 11 in. wheel at 8.8 full load amps. Interestingly it is a smaller motor than the 1 HP unit in the 110C060, because the wider 24-1/2 in. cabinet presents less air-side resistance.
What is the supply outlet size on a 24-1/2 in. cabinet?
22-7/8 in. supply outlet width and 23 in. bottom inlet width, with a 15-1/16 in. flue collar. These are the largest openings in the WFER range.
WFER Installation Instructions
