ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Pull out fuse panel?
by gfretwell. 12/17/18 02:33 PM
Video door bell causing chime activation of coil
by gfretwell. 12/16/18 09:01 PM
Conduit fill Calculations
by gfretwell. 12/08/18 08:39 PM
Swimming Pool question
by HotLine1. 12/05/18 12:37 PM
Tingle off the water spigot
by rmiell. 11/30/18 01:03 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 11 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Tankless water heater - 2 X 40a #164058
05/24/07 01:53 AM
05/24/07 01:53 AM
A
aldav53  Offline OP
Member
Joined: Aug 2001
Posts: 545
Chandler, AZ USA
Residential home - I'm wiring a tankless water heater that calls for 2 - 40 amp 240 volt ckts. It has 2 separate heaters. I was going to run 4-#8's and 1-#8 ground to a junction box on the flat roof (splice there) of the house then go in with 2-#8 NM's into the attic then down to 2 disconnects then to the tankless water heater.
Would it be legal to run 2-#4's instead to the junction box then split off with the 2-#8 NM's to the water heater (2 ckts). Probably be better to keep both cicuits separate all the way.


The Golden Rule - "The man with the gold makes the rule"
Work Gear for Electricians and the Trades
Re: Tankless water heater - 2 X 40a [Re: aldav53] #164061
05/24/07 04:50 AM
05/24/07 04:50 AM
R
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
Duplicate

Roger


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Posts: 362
Joined: April 2003
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
252,284 Are you busy
189,233 Re: Forum
178,918 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.027s Queries: 15 (0.011s) Memory: 0.9429 MB (Peak: 1.0597 MB) Zlib enabled. Server Time: 2018-12-19 09:47:05 UTC