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Author:
samsamsam (WY)
I’m looking to switch over to a tankless gas water heater primarily because of space saving reasons. My garage is quite small and the current plumbing takes up the entirety of a large closet space. I am planning to move the plumbing system to a separate wall where it will take up far less valuable space.
I currently can not get a call back from any plumbers in my area so I figured I will take a deep dive into coming up with a plan in the hope that once I can get a hold of a professional the job will be straight forward and they can fit it in. That being said I am also trying to complete as much of the rough-in plumbing that I believe to be in my abilities. I am planning on repiping the changes with Uponor Pex A because it seems to be the most foolproof for non professionals.
I have drawn up the schematic of what I think the new system will look like but I am looking for advice and critiques.
[imgur.com]
Here are my main questions:
-Do I need an expansion tank because it is a closed system when the Recirculation Pump is running? I’ve seen mixed things online about if they are required by code or not.
-Am I missing any shut-off or other type of valves?
-Are there any unnecessary parts of the design?
-To what point in the system could I do the rough-in for without doing the plumber's job of actually installing the Tankless. (Could I plumb the water softener? Recirc Pump? Do plumbers hate when homeowners try to do too much?)
Any advise helps! I'm just a new homeowner trying my best to navigate wisely through these big projects! Thanks!
**Not shown is the gas piping that will be done solely by a professional!
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Author:
bsipps (PA)
Honestly do it all your self or let a plumber do it all
Do yourself a favor and get service valves for the tankless unit and yes install an expansion tank you may not need it now but eventually you may especially if you hooked into city water supply
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Author:
packy (MA)
look at a tankless with a built in recirculating pump.
save you so much work.
also, i don't know much about them but they have come out with new scale removing filter systems for tankless heaters. no flushing or expensive bypass needed ??? look into it.
last point.. if you are relocating the heater, remember it will sidewall vent so you have a few restrictions that you must follow.
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Author:
Lorensr (CA)
I am not a fan of tankless. Too expensive and complicated for the average plumber much less homeowners. They need to be serviced every 6 months or less depending on the amount of Hot water you use and your waters condition.
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Author:
samsamsam (WY)
IS it possible to do it all myself without voiding the warranty. I really think that I could tackle it because there are some very clear tutorials online, but I can't find any manufactures that honor any sort of warranty unless installed by a cert. plumber
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