This exact thermostat is no longer available. The replacement thermostat is by Sunne.. the following description describes the HONEYWELL LS 8008 thermostat... no longer available: 'The laars part number for this thermostat is R0318800 Complete Thermostat assembly for many Teledyne-Laars gas heaters. 2 terminals, with tubed, vinyl covered sensor for mounting in the I/O header of the heater. Used in DM, DR, EC, EPC, TGS, TGT, TE, DP models. Also used in some EG, EPG, ESG, and LLG series heaters.