Chris Rosales came out due to no heat, upon arrival found gas valve appears to be sticking however cannot recreate problem. Customer is however dissatisfied with the performance of thermostat, quoted customer on. New gas valve, thermostat and glow igniter due to damaged state it may fail soon. Customer stated that he only wants the thermostat at this time. Furnace is past 15 years, recommend seeking replacement options as well and we can supply quote. Customer said he has a cleaning scheduled Friday and will address membership and gas valve the. Customer paid $498.00 on credit card. Unit is heating at this time.