Honeywell AquaStat L8148E1257

140-240F Relay w/ Vent Damper Connection

This is sold as L8148E1265

Features:

High limit opens burner circuit only.
Select models include transformer and accessory terminals for adding a remote low limit controller.
Vertical Mounting Case.
Requires a 24 Vac thermostat with heat anticipator set at 0.2A.