high-voltage spark to the burner assembly

What is the difference between a line regulator and this appliance regulator

the R0200100 is the authorized replacement for Jandy and Zodiac models that specify this part number or the 6203-207 alternate

visible soot buildup

As the direct replacement for Nordyne 664905R

Resideo YTHX9421R5101WW Stat 323269-701 high-voltage spark to the burnerThe Resideo YTHX9421R5101WW Prestige IAQ Kit is a high performance 2 wire thermostat system engineered for demanding residential and light commercial applications. Utilizing RedLINK wireless technology, this kit simplifies complex installations by requiring only two wires at the thermostat head, with all primary equipment connections made at the included Equipment Interface Module (EIM). This configuration supports high stage functionality, managing