PEX connections on 40 gal electric water heater?
- Thread starter Eman85
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wwhitney
In the Trades
Tennessee uses the IPC, which IIRC does not have any explicit prohibition on running PEX to the electric tank water heater. But you need to check the installation instructions on the water heater itself, and on the brand of PEX you are using.
Cheers, Wayne
Cheers, Wayne
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I think I'll go with using connectors just to be safe. Ant particular style or brand better than others? I see BrassCraft makes some that work with PEX. Are the copper ones better than the stainless in corrugated? I see many say to stay away from the flexible style and I don't need Sharkbite quick connects, I have compression and cinch style tools.
Copper and stainless corrugated are good. Falcon connectors have bigger ID than most flex connectors. https://www.falconstainless.com/category/water-connectors/water-heating/
Expect a premium price.
The corrugated ones are considered flexible too.
Expect a premium price.
The corrugated ones are considered flexible too.
Jeff H Young
In the Trades
I use stainless .
Fitter30
Well-Known Member
Pex max temp 200° pressure 100lbs @ 180°
T&P valve relieves at 210° 150lbs
Not really rated right off the tank
T&P valve relieves at 210° 150lbs
Not really rated right off the tank
Jeff H Young
In the Trades
I think tand p can run pex , I never ran pex or any plastic to a w/h nor am planning on it, electric or gas . My code says 18 inches from heater
I prefer to use braided Sharkbite hoses to the tank, so the tank can be moved if needed. I use CPVC stubbed out from Pex A ( Uponor ) on threaded couplers. I use threaded ball valve stops on both the cold and hot Pex supplies, before the CPVC. I don't use Sharkbites anywhere else and don't recommend them elsewhere. The water heater uses a pan that drains outside. No idea if that meets code, but works for me.
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They also have Sharkbite WH connectors in corrugated stainless. Braided lines are coverings over rubber-like tubes, and sometimes those decompose, giving black particles. I am not sure if that would apply to Sharkbite versions, but I would prefer corrugated.
SharkBite 3/4 in. Push-to-Connect x 3/4 in. FIP x 24 in. Corrugated Stainless Steel Water Heater Connector SS3088FLEX24LF - The Home Depot
The SharkBite 24 in. x 3/4 in. Push-Fit x 3/4 in. FIP Corrugated Stainless Steel Water Heater Connector is the fastest way to connect your Water Heater to your plumbing system. Apply thread tape to the
www.homedepot.com
I purchased Brasscraft corrugated stainless with PEX crimp style connectors already on them. I use crimp and cinch clamps on my PEX as I have the tools for it and it works for me. Just me but the only place I install any CPVC in my home is the garbage can, works well there. Water heater pan will be plumbed to outside the home's perimeter and will drain the T&P also.
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