Because I'm a sucker for punishment!Why did you replumb the house?
Long story long... I have 2 HVAC units in my house. One was located in the attic, and the other in an interior closet, along with a tank water heater. The A-coil in the attic unit failed after 15 years, and had to be replaced. The unit was installed in the attic prior to sheetrock, and the builder did not leave an opening large enough to be able to get any part of the unit through. I did not want to cut a hole in my ceiling, and I had always planned on moving the mechanical into a nook in the garage, so I decided that now was the time. I also wanted to upgrade the equipment to more efficient stuff. Moving this stuff to the garage meant I could get all mechanical in a location where I could have easy access. Along with moving those out there, I also wanted to get the water heater out of the interior of the house, and convert to a tankless unit. This turned into one of those "project scope creep" situations where doing one thing led to doing another and another and another. Moving the HVAC to the garage meant reworking the gas lines. Since I was reworking the gas lines for those, I should just go ahead and move the water heater to the garage at the same time, since it doesn't make sense to replumb the the gas twice. I want to eventually do a tankless unit which will require 4 times the amount of gas so I have to consider that. While I'm replumbing the gas, I should just add a manifold and that way I can isolate individual appliances without having to shut off the whole house. Since I'm moving the water heater out next to the HVAC, I am gonna have to rework the water lines to connect back up. It would be really nice to have this manifold so that I could easily isolate things in the future. I know we will be adding more plumbing for a master bath remodel in the next few years, and a wet bar addition, so I can justify the manifold. Since the tankless unit really needs a pre and post filter, I might as well add this whole house filtration/softener system. And I think that was where it stopped. I wound up completely replacing every inch of HVAC ductwork in my house, along with every gas and water line.
Bonus plan was that when it came time to run gas for the pool pad, the plumber had no issues adding to the end of the manifold. And when he saw it, he complimented me on it. Although he tried to sound like he was smarter than me, calling me out that I used a water valve for the main inlet to the gas manifold. It was at that point I lost any respect for him. I spec this stuff for a living. I can assure you that I used a valve that was UL listed for gas service. This was the same plumber that had to come out and rework everything he did, because he wouldn't listen to me when I asked him why he was adding a pressure regulator at the pool heater. He kept telling me we had to reduce the pressure from pounds to ounces (I'm guessing he only read the tag on the meter, and since it said it was good for 5 psi, he assumed that was the pressure. Nevermind the pressure regulator hanging off the side of the meter that says 8-14 inches). And when I told him we only had 9" at the manifold, he didn't care to listen. He kept on like he knew more than me. And it is likely he does, in a lot of areas. But when it comes to the ins and outs of my home, I know everything. Because I have designed the entire system. So since the plumber wouldn't listen to me, I questioned the pool builder on it. Low and behold, the next week that kid was out here redoing everything; larger line feeding the pool pad, no regulator at the heater. Unfortunately I was not able to come home while he was fixing it. I would have been polite, but I would have been asking a lot of questions!
So, here is the end result of that scope creep on the mechanical work...
You can see the water manifold on the right and the gas manifold on the left. I'm never leaving this place. Unless I build, I will never find another house with these features. Nobody wants to spend the money doing it like this. Fortunately I have a good friend who is an HVAC contractor who I was able to let run with this. As you can tell, he is neurotic when it comes to his work. The only person I have ever let work on my house and I know I can leave him to his own devices. He actually thinks about what he is doing, doesn't just try and get it done and get out. When I mentioned at the beginning of the thread, having to temper my expectations, this is what I was talking about. I would say this is how to do it right. Most would say I'm nuts.