Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Possible to damage plastic threads on indirect water heater?

vtdiyer
vtdiyer Member Posts: 3
in Domestic Hot Water
I am installing a SuperStore Contender SSC-50 indirect water heater and one of the things I noticed is that threading for boiler feed and return connectors are plastic. I am sweating a pipe on an elbow right out of the feed connector and I am concerned with a possibility to melt/damage the thread. At the same time if I don't heat the joint properly I can not do a good sweating job. Does anybody know what kind of plastic is there and how resistant it is to this sort if thermal damage. Thank you.

Welcome

It looks like you're new here. Sign in or register to get started.
Sign In
Register

Comments

  • kcopp
    kcopp Member Posts: 4,564
    Boiler tappings....

    on a SSC-50 and female and not plastic. They are steel and on the side. The top hot and cold water nipples have plastic lined dielectric nipples and can be damaged w/ heat. Hence the reason you presolder the fittings on and wrap the area w/ a cold wet rag.
  • vtdiyer
    vtdiyer Member Posts: 3
    Thank you

    Thank you. Yes, I was talking about the female 1" ones on the side. They looked and felt like black plastic. My mistake. Thank you.
  • pipeking
    pipeking Member Posts: 252
    what u should do

    is use short 1" nipples and female adp. instead of copper male adp. right into the sup/ret. i will say every one i ever used male adp. on leaked in 2yrs or less. i started doing this and never had a problem since! good luck
  • icesailor
    icesailor Member Posts: 7,260
    Fittings:

    And use quality PTFE pipe tape and a quality pipe paste like Rectorseal #100 or Meg-Loc.
  • vtdiyer
    vtdiyer Member Posts: 3
    Thank you

    I have already finished the job by the time I saw your comments about using nipple-female approach, but if what I have leaks, I will try than instead. I had used 1 to 3/4 galvanized steel bushings to step down as my boiler loop is only 3/4 anyway, then 3/4 copper male to sweat adapter and an elbow right out of it it. I've used paste but it took me two tries to do the bushings without a leak. Everything is running right now and everybody enjoys hot water in the house.
This discussion has been closed.

Welcome

It looks like you're new here. Sign in or register to get started.
Sign In
Register

Quick Links

Categories