OXBOX UNIT J80 1 STAGE; 80% AFUE 40,000 BTUH MULTI POSITION GAS FURNACE 115/1/60

The Oxbox J801V040AM3SEA is a single-stage gas furnace engineered to provide dependable heating performance for residential applications. With a 40,000 BTUH input capacity and 80% AFUE (Annual Fuel Utilization Efficiency), this unit delivers cost-effective warmth while fitting into a variety of installation scenarios. It is designed for multi-position installation, so it can be configured in upflow, downflow, or horizontal orientations to suit the layout of the HVAC system. Oxbox HVAC Shop+1

Key Features

80% AFUE Efficiency

• Rated at 80% AFUE, meaning 80% of the fuel energy is converted to usable heat — a solid efficiency level for standard residential heating. Oxbox HVAC Shop

Single-Stage Heating

• Single-stage gas valve provides reliable, full-capacity heat whenever the thermostat calls for it.

• Simple and rugged design helps reduce maintenance needs. Oxbox HVAC Shop

40,000 BTUH Heating Capacity

• A 40 kBTU input rating is ideal for smaller homes, apartments, or zone heating applications.