Corroded dielectric Union on water boiler

[branimal]

My mom’s boiler is leaking at the 1 1/4” dielectric union.

My plan is to turn off the boiler, drain it, and replace the dielectric union.

Are there any issue’s i’m likely to run into in the process?

 

[Diehard]

How old?
Overall, looks in good shape and probably helped your boiler.

 

[wood4d]

looks like they could have put a circulator there. you dont need a dielectric union. just get a circ flange and a new $2 black nipple

 

[branimal]

How old?
Overall, looks in good shape and probably helped your boiler.

2015

 

[Diehard]

looks like they could have put a circulator there. you dont need a dielectric union. just get a circ flange and a new $2 black nipple

And some dielectric bolts?