Lennox 20J87 Inshot Burner 321042-401 providing precise flame impingement on

providing precise flame impingement on the thermocouple for consistent millivolt generation

5" WC natural gas systems to maintain consistent thermal output and burner stability

When performing a TXV replacement

This is a factory drain hole required by ASME code

this HSI reaches ignition temperature rapidly to ensure a reliable bridge to the burner assembly

Lennox 20J87 Inshot Burner 321042-401 providing precise flame impingement onThe Lennox 20J87 Inshot Burner is a critical OEM replacement component designed for high efficiency gas furnaces and unit heaters. Engineered for precision, this 20J8701 identical burner measures 2. 5 inches wide by 4. 5 inches long and is constructed from durable stainless steel to resist corrosion and thermal stress. As a veteran technician knows, maintaining proper combustion performance depends on the swirl stabilized flame pattern this part