While designed for Fenwal systems

a round capacitor can replace an oval one

While specifically spec'd for the Carlin 99 and 100 CRD

While the electrical specifications are identical

for propane—relative to your heater's input rating

Weil McLain 511-330-079 Ignition Module THPU32HP7Y While designed for Fenwal systemsUpgrade your system restoration with the Weil McLain 511 330 079 Ignition Module, a critical component for maintaining precise sequence control in CGA Series gas boilers. Engineered as a direct OEM replacement ignition control, this module (model UT 1107 2) operates on a 120V power supply to manage consistent spark to pilot ignition cycles. Designed for professional HVAC contractors, it replaces failing boards in residential hydronic systems to