Everwarm Millivolt Valve Vent Free Burner - Liquid Propane h33.12 A: The York S1-3500-3121 Switch

A: The York S1-3500-3121 Switch can operate in temperatures ranging from 105 degrees to 165 degrees Fahrenheit

it is important to install the rain shield correctly as stated in the owner's manual

Unparalleled performance

this aluminum case ensures optimal heating and cooling performance

Optimal clarity for a stunning view of the flames

Everwarm Millivolt Valve Vent Free Burner - Liquid Propane h33.12 A: The York S1-3500-3121 SwitchBurners are certified to work with SPECIFIC Log Sets only. While there may be several allowable Log Sets for a specific burner, they are NOT universal. Using a burner with a non compatible log set can lead to Fire, Carbon Monoxide Poisoning and Property Damage. This burner system includes an Oxygen Depletion System to quickly shut off the gas if room oxygen levels drop to unsafe levels. It is for use in a vent free firebox. It is a millivolt burner