Recent content by Joe0735

  1. J

    Tankless water heater with tank

    It is actually a Kohler, not a Bosch. Sorry. The pressure balancing valve is a plastic riveted unit with two dime-sized holes (part# GP500520). It installs inside of a recessThe mixing valve (handle. Part# GP77759) mounts on the outside if this. The two compress together during installation...
  2. J

    Tankless water heater with tank

    Thanks, again. As far as the hot and cold fluctuations in the downstairs shower go, I am going to assume the problem is the balancing or mixing valve in the fixture. I have a kitchen faucet and an upstairs bath, both of which have balancing valves, and I am not experiencing the problem I am...
  3. J

    Tankless water heater with tank

    I clarified a couple of things. Use this diagram, instead. The 6 gal. tank is not yet installed.
  4. J

    Tankless water heater with tank

    Diagram is attached. Sorry; you will have to click on it.
  5. J

    Tankless water heater with tank

    I opened up the wall below the sink in the upstairs bathroom. The supply lines are 3/4" diameter below the floor/ ceiling joists, then downsize to 1/2" before going up. The total length off the main run is about 15 feet. On the opposite side of the house is the downstairs kitchen. There is a...
  6. J

    Tankless water heater with tank

    Should I use a flapper check valve mounted horizontally or a spring check valve mounted vertically? Which one will be potentially less problematic?
  7. J

    Tankless water heater with tank

    I installed a backflow preventer and expansion tank on the water heater cold water inlet, and installed a bridge valve on farthest fixture. This has made a significant difference. The 6 gal. electric tank will be here in several weeks. When I install a dedicated return line, within the next...
  8. J

    Tankless water heater with tank

    Thanks for all the input.
  9. J

    Wall mounted mini heat pump combo.

    Thanks, guys.
  10. J

    Wall mounted mini heat pump combo.

    I already removed and scrapped them, but I seem to recall 4,000 watts total (2,000 x 2.) It has been over 15 years. They were slightly undersized for the space, but I never noticed any deficiency. I have had to use a window air conditioner, and the mini split would eliminate that. The...
  11. J

    Wall mounted mini heat pump combo.

    A few years ago, I converted a 2-1/2 car attached garage into a family room. My boiler could not handle the additional load, so I installed hydronic baseboard heaters (silicon filled.) They worked well, and were pretty energy efficient, but now need to be replaced. I am considering a wall...
  12. J

    Tankless water heater with tank

    I have worked in stamping plants for 30 years so I have thick skin. Guys with knowledge and tools can be harsh when their stomping grounds are invaded. I get it. It will be a month or two before I have time to plumb the return because people are buying cars right now and I am on 12's, and the...
  13. J

    Tankless water heater with tank

    I have read at least a dozen threads about connecting a small tank water heater in-line with the tankless to buffer out cold spikes. I have not yet plumbed a return line for the recirculation pump. Should I wait until I run the return line and activate the recirculation pump, and then assess...
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