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Straight pipe water heater or use flex hose

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  • #16
    Re: Straight pipe water heater or use flex hose

    Originally posted by Service Guy View Post
    If there is a check-valve on the water meter, it is required or should be.
    Only if it does have a P.R.V., Double Check or the like is one required

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    • #17
      Re: Straight pipe water heater or use flex hose

      IPC 607.4
      "Where a backflow prevention device, check-valve or other device is installed on a water supply system utilizing storage water heating equipment such that thermal expansion causes an increase in pressure, a device for controlling pressure shall be installed."

      Modern city water meters have check-valves installed and therefore all water heaters in homes with modern water meters should have an expansion tank.
      Water Heater Reviews & Water Heater Information

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      • #18
        Re: Straight pipe water heater or use flex hose

        Originally posted by Service Guy View Post
        IPC 607.4
        "Where a backflow prevention device, check-valve or other device is installed on a water supply system utilizing storage water heating equipment such that thermal expansion causes an increase in pressure, a device for controlling pressure shall be installed."

        Modern city water meters have check-valves installed and therefore all water heaters in homes with modern water meters should have an expansion tank.
        Some may but not all do so it really depends on where you are. I use meter yokes which have built-in dual-checks.

        Mark
        "Somewhere a Village is Missing Twelve Idiots!" - Casey Anthony

        I never lost a cent on the jobs I didn't get!

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        • #19
          out here in the land of shakes/ calif. we typically use copper water flexes on the 3/4'' heaters.

          we found that the braided stainless hoses tend to rupture on water heaters.

          in the old days, when we solid piped the heaters, we didn't have to strap them. now we have to strap and we tend to flex the residential heaters. even the 1''/ 75 gallon heaters have flexes.

          try to use copper flexes. they have a built in dielectric union.

          there are newer all stainless corrugated flexes and they are similar to the copper ones.

          rick.
          phoebe it is

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          • #20
            Re: Straight pipe water heater or use flex hose

            Originally posted by Service Guy View Post
            IPC 607.4
            "Where a backflow prevention device, check-valve or other device is installed on a water supply system utilizing storage water heating equipment such that thermal expansion causes an increase in pressure, a device for controlling pressure shall be installed."

            Modern city water meters have check-valves installed and therefore all water heaters in homes with modern water meters should have an expansion tank.
            I guess us city folk up here in NY are not as modern as N.C.

            They do NOT all have built in check's, matter of fact I dont believe I have come across one.

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            • #21
              Re: Straight pipe water heater or use flex hose

              Originally posted by NHMaster3015 View Post
              Dielectric unions or nipples are a must by code
              Wether or not to hard pipe it is up to you, but there's a fairly high failure rate on the flex connectors.
              Expansion tank is required by code
              Full port, full open valve on the cold water inlet is required by code.
              Temperature should be set between 140 and 160 to kill legionella bacteria, and so you do need a tempering valve, code also.

              Does that cover it?
              I don't think an expansion tank is required by code in my area. I believe I have an open system. The house never had an expansion tank and it has been around for 20 years.

              Is that true about hot water temps? I have never heard that. My utility company keeps telling everyone to lower their temperature by 10 degrees to save such and such on their utility bill. I have never set it above 135. Should I be worried about legionella bacteria?

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              • #22
                Re: Straight pipe water heater or use flex hose

                Originally posted by PLUMBER RICK View Post
                out here in the land of shakes/ calif. we typically use copper water flexes on the 3/4'' heaters.

                we found that the braided stainless hoses tend to rupture on water heaters.

                in the old days, when we solid piped the heaters, we didn't have to strap them. now we have to strap and we tend to flex the residential heaters. even the 1''/ 75 gallon heaters have flexes.

                try to use copper flexes. they have a built in dielectric union.

                there are newer all stainless corrugated flexes and they are similar to the copper ones.

                rick.
                I have seen the stainless corrugated flex hoses. Are they better than the copper?

                Comment


                • #23
                  Re: Straight pipe water heater or use flex hose

                  I'm on the brink of letting a plumber do it. If a house never had an expansion tank, would it ever need one? It has passed the test of time. Also, a utility company could be held legally liable if they added a check valve or changed it into a closed system without notifying homeowners of the need of an expansion tanks. Is it fair to assume that if you have once had an open system it will always be an open system?

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                  • #24
                    Re: Straight pipe water heater or use flex hose

                    For someone who wanted to know somewhere else to ask questions, you sure are still asking a lot here. Must not of liked what you saw at terry love. lol don't blame you
                    Buy cheap, buy twice.

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                    • #25
                      Re: Straight pipe water heater or use flex hose

                      Originally posted by navysuit View Post
                      I have seen the stainless corrugated flex hoses. Are they better than the copper?
                      The good ones are but they are expensive in comparison to the copper.

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                      • #26
                        Re: Straight pipe water heater or use flex hose

                        Originally posted by gear junkie View Post
                        For someone who wanted to know somewhere else to ask questions, you sure are still asking a lot here. Must not of liked what you saw at terry love. lol don't blame you
                        I thought it was a trap (porno site).

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                        • #27
                          Re: Straight pipe water heater or use flex hose

                          Looks like you've been told all the right things....now go get 'em. You can do it depending on your level of skill.

                          Just make sure to allow a week for that water heater pan.

                          J.C.

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                          • #28
                            Re: Straight pipe water heater or use flex hose

                            What about brand? I'm guessing GE isn't the best brand. I just don't know where to purchase AO Smith, Rheem, or Bradford White. I noticed Home Depot sells GE and Lowes sells Whirlpool. I think Whirlpools are made by American Water heaters which is an AO Smith company. Is this correct? I also heard that Kenmores are AO Smiths.

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                            • #29
                              Re: Straight pipe water heater or use flex hose

                              Originally posted by JCsPlumbing View Post
                              Looks like you've been told all the right things....now go get 'em. You can do it depending on your level of skill.

                              Just make sure to allow a week for that water heater pan.

                              J.C.
                              Thanks
                              I'm not sure if this site has given me encouragement to do the job or discouraged me.

                              Comment


                              • #30
                                Re: Straight pipe water heater or use flex hose

                                Gas or Electric?

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