Things to consider regarding latest code updates.
(NOTE: Ai generated from google):
EXPANSION TANKS:
Based on 2026 guidelines, expansion tanks are mandatory on gas water heaters within closed-loop systems—typically featuring check valves, pressure-reducing valves, or backflow preventers—to prevent thermal expansion damage.
DIRECT VENT
Direct vent gas water heaters are specifically designed to draw all combustion air directly from the outside, meaning they are not required to be installed in a ventilated enclosure and do not pull air from the living space. Plumbing codes, such as the International Fuel Gas Code (IFGC) and Uniform Plumbing Code (UPC), require that the intake and exhaust be properly installed according to the manufacturer’s instructions and specific termination clearances.
** Edited by PWR2LZ at 5/4/2026, 12:28:07 PM
Thread Replies (19)
How much for new water heater installed?
-- chemhokie
May 04, 2026 at 11:47 AM ET
chemhokie
•
05/04/26 11:47 AM ET
I replaced mine (I'm in the NRV) a few months ago. I did the work myself.
-- Tafkam Hokie
May 04, 2026 at 04:20 PM ET
Tafkam Hokie
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05/04/26 04:20 PM ET
I did mine 5 or 6 months ago. 50 Gallon, Gas, Power Vented. My initial
-- Late 80s Hokie
May 04, 2026 at 03:15 PM ET
Late 80s Hokie
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05/04/26 03:15 PM ET
Had one done here in Blacksburg a couple years ago for $1100.00. **
-- santafe
May 04, 2026 at 12:55 PM ET
santafe
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05/04/26 12:55 PM ET
@santafe - so you're in Blacksburg, not Sante Fe ?**
-- Chesapeake_Hokie
May 04, 2026 at 04:32 PM ET
Chesapeake_Hokie
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05/04/26 04:32 PM ET
A couple of years ago, with another couple, we bought a townhouse (more)
-- Chesapeake_Hokie
May 05, 2026 at 08:12 AM ET
Chesapeake_Hokie
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05/05/26 08:12 AM ET
I support @santafe post ! :-)**
-- laphroaig
May 05, 2026 at 10:07 AM ET
laphroaig
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05/05/26 10:07 AM ET
Sounds good. We get together about once a month at Bull and Bones to talk
-- santafe
May 05, 2026 at 08:39 AM ET
santafe
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05/05/26 08:39 AM ET
I REALLY REALLY would have liked to do that. This is the 3rd water heater
-- Late 80s Hokie
May 04, 2026 at 03:19 PM ET
Late 80s Hokie
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05/04/26 03:19 PM ET
Things to consider regarding latest code updates.
◄
-- PWR2LZ
May 04, 2026 at 12:26 PM ET
PWR2LZ
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05/04/26 12:26 PM ET
Looks like the expansion tank will be required, but for the 40 gal size,
-- chemhokie
May 04, 2026 at 01:10 PM ET
chemhokie
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05/04/26 01:10 PM ET
You are correct re: the tankless. BUT here is something else to consider if
-- PWR2LZ
May 04, 2026 at 02:00 PM ET
PWR2LZ
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05/04/26 02:00 PM ET
Tankless also takes a bit longer to get hot water to your destination. Mine
-- DonHo-kieHi
May 05, 2026 at 10:58 AM ET
DonHo-kieHi
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05/05/26 10:58 AM ET
What a PITA! A tankless unit is supposed to be very energy efficient, but
-- PWR2LZ
May 05, 2026 at 12:53 PM ET
PWR2LZ
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05/05/26 12:53 PM ET
Yep, don’t get me started on Nat gas pool and spa heating and I could go
-- DonHo-kieHi
May 05, 2026 at 01:30 PM ET
DonHo-kieHi
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05/05/26 01:30 PM ET
here in the NRV that would probably be $1200-$1400**
-- JoesterVT
May 04, 2026 at 12:04 PM ET
JoesterVT
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05/04/26 12:04 PM ET
Gas will run more than an electric. Ballpark around $2000.**
-- Stork
May 04, 2026 at 11:53 AM ET
Stork
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05/04/26 11:53 AM ET