Results 1 to 6 of 6
  1. #1
    Join Date
    Feb 2005
    Posts
    2
    Anybody care to comment on whether it's worth draining down an oil fired boiler, hydronic heating system in New England. Some folks state that it's worth draining down an electric or gas hot water tank to drain out corrosion, Is that worth it? and would the same logic (Or Anti Logic) apply to a single zone hydronic heating system? Thanks

  2. #2
    Join Date
    Jul 2004
    Location
    Fort Lauderdale, FL
    Posts
    454
    You should not have to. You run into the problem, new water, new chemicals in the water. Leave it alone unless there is air in the system.
    How much is it an hour?

  3. #3
    Join Date
    Feb 2004
    Location
    Maine
    Posts
    483
    If the system is tight with no leaks and no air problems then don't drain it. Every time fresh water is added oxygen is added to the water. Oxygen in hot water is very corrosive to the boiler and actually accelerates corrosion. This is the main reason that boiler systems need to be tight with absolutly no leaks.

  4. #4
    Join Date
    Jul 2001
    Location
    Delaware
    Posts
    1,229
    I agree. Unless there is an absolute need to drain the system, don't do it. Adding a bunch of fresh water is one of the worst things you can do to a hydronic system.
    Work is for people who don't know how to fish.

  5. #5
    Join Date
    Sep 2001
    Location
    East Stroudsburg, PA
    Posts
    13,215

    As Grady stated,

    One of the worst things you can do is to add fresh water to a heating system.

    The blacker the water, the happier the metal.....

  6. #6
    Join Date
    Feb 2005
    Posts
    2

    Thumbs up

    It's unanimous, I'm not touching that system, 1 less thing to do this weekend. Thanks for the professional advice.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event