Verify the arm length and motor bolt pattern against your existing bracket before installation

For cooling or refrigeration where you need to close the circuit on a temperature rise

Skin oils can cause hot spots and lead to early failure of the igniter

which lowers pressure drop compared to the tighter turn of a short-radius fitting

Common Questions Is the Robertshaw 705-401 interchangeable with regulated operators

Lochinvar & A.O. Smith 100112668 Burner Assembly 320735-701 Verify the arm length andThe Lochinvar & A. O. Smith 100112668 Burner Assembly is a genuine OEM replacement part engineered specifically for high efficiency natural gas water heaters and commercial boilers. As a critical component of the combustion system, this 18 inch burner assembly features a precision machined #32 orifice, ensuring the correct air to fuel ratio for optimal thermal output. Designed for use in Lochinvar and A. O. Smith units, this assembly is built to