80% Single Stage, Gas Furnace, 4 Ton, Upflow/Horizontal, 17.5 Constant Torque

Concord 85W40 – 88,000 BTU Gas Furnace with 80% AFUE Efficiency

The Concord 85W40 gas furnace is a high-efficiency heating unit designed for dependable performance in residential applications. With an 80% AFUE rating, this furnace converts a majority of the fuel it consumes into usable heat, making it a solid choice for projects requiring cost-effective heating without compromising reliability. It features a constant torque ECM blower motor for improved airflow control and quieter operation compared to standard PSC motor models.

This model is configured for upflow or horizontal installation, allowing flexible positioning to meet site requirements. Its compact dimensions make it suitable for installation in space-limited utility rooms, attics, or closets. The cabinet is built for durability, with insulated panels that help minimize operational noise and retain heat within the heat exchanger assembly.

Key Features

• AFUE Rating: 80% – Meets standard efficiency benchmarks for residential gas furnaces.
• Input Capacity: 88,000 BTU – Delivers reliable heat output for mid-sized applications.
• Output Capacity: 72,000 BTU – Ensures consistent comfort across heating zones.
• Motor: Constant Torque ECM – Provides enhanced control and energy savings over fixed-speed alternatives.
• Cabinet Design: Compact and durable with noise-reducing insulation.
• Orientation: Upflow/Horizontal – Accommodates standard residential installation requirements.

Technical Specifications

• Model Number: 85W40
• Input: 88,000 BTU
• Output: 72,000 BTU
• AFUE: 80%
• Voltage: 120V
• Installation Type: Upflow / Horizontal
• Dimensions: 33 in H x 17-1/2 in W x 28-3/8 in D

Installation Guidelines

Professional installation is strongly recommended for the Concord 85W40 furnace. Electrical connections, gas line setup, and venting must be performed in accordance with code and manufacturer guidelines. Proper commissioning ensures that airflow and gas input rates are correctly configured for efficient operation.