Gas Water Heater Frostproof

Posted on: July 1, 2015 by in Gas Water Heater
Gas Water Heater Frostproof

This Old House plumbing and heating expert Richard Trethewey shows how to replace a rusted, ready-to-burst fitting. (See below for a shopping list and tools.)

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Full episode:

How to Replace a Direct-Vent Water Heater:

How to Flush a Water Heater:

How to Change a Water Heater Anode Rod:

Shopping List for How to Replace a Corroded Water-Heater Fitting:
– bucket
– copper pipe, threaded fitting and coupling
– teflon tape
– lead-free solder and flux
– emery cloth

Tools for How to Replace a Corroded Water-Heater Fitting:
– close-quarter tubing cutter
– pipe wrench
– propane torch
– pliers

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9 Responses

  1. weedram says:

    Love the video! I’ve done this several times. Wish I had one of those
    little snap cutters.

  2. Charles Damery says:

    Did Richard replace the Anode rod too ?

  3. weedram says:

    Great tip on keeping the soldering away from the Teflon. Some of us
    forget. :)

  4. Porsche924Tim says:

    If Richard installed a shut-off where he cut the pipe (the hot feed to the
    house), the next time he had to service the water heater he could shut off
    the inlet AND outlet… then not have to drain the entire hot water system
    throughout the house. Why not improve the system as long as the pipe is

  5. Andrew Miguelez says:

    Watch the homeowner’s eyes at 0:28. Haha!

  6. patw52pb1 says:

    Did Richard check for electrical ground integrity and replace the anode?

  7. san379 . says: hot water tank is from 1978.. it dosent leak and my water is not
    brown.. i guess i bought a good one..

  8. Shawn Taylor says:

    Why isn’t he using a dielectric union?

  9. Mike Roy says:

    Rich Here is a tip i have used often. I’m sure you have heard of it. When
    dealing with a frozen pipe, and simple shutting off the water still leaves
    ice in its place fill the pipe end that is the source of the water with
    white bread it will hold things back long enought to solder the connection.
    Tks for all your help. Mike Roy 1980 Dimon Grad “80 H” Metal Fab. And