Can this replace a millivolt system thermostat

It is also the designated upgrade kit for converting P900 series pressure balance valves into modern T/P (Thermal/Pressure) safety valves

Can this thermostat replace an older T-4002 or T-4003 series

required gaskets

easy slide-in design

Burnham Boiler 8116322 Vent Damper R-410A Can this replace a millivoltThe Burnham 8116322 5 inch automatic vent damper is a critical electromechanical component designed to improve the AFUE rating of high efficiency gas fired atmospheric boilers. This Johnson Controls manufactured unit (frequently cross referenced as M35MB 2) functions by closing the flue pipe during the burner's off cycle, preventing standby heat loss through the chimney. It features a high temp polymer construction and a robust motor actuated blade