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Need some advice on Generator power

Posted on 9/12/24 at 2:40 pm
Posted by deathvalleyfreak43
Baton Rouge
Member since Jul 2008
13884 posts
Posted on 9/12/24 at 2:40 pm
My family cannot stand the power being off much longer. Is there a safe way to power my house using a portable generator? The power rating for the generator is 6kW, and I want to run my electric water heater (4.5kW) and my refrigerator (0.5kW) and possibly a few lights.

I had friend suggest that I deactivate one of the heating elements and thereby reduce the amount of power that the water heater will draw. I'm guessing I'd still need 240V rather than 120, but I'm not sure. It would be awesome if I could just use a 12 or 14 gauge extension cord instead of a really expensive 10 gauge, but I don't want to do anything that will catch my house on fire.

Also, can anyone give me a detailed explanation of steps I need to take for this whole process

Posted by LEASTBAY
Member since Aug 2007
15638 posts
Posted on 9/12/24 at 2:43 pm to
I think you should plug the fridge into the generator with an extension cord and skip the hot water.
Posted by Tiger Ryno
#WoF
Member since Feb 2007
105377 posts
Posted on 9/12/24 at 2:43 pm to
Seems risky tbh. Without an electrician there or an expert I would just hold tight. Blowing up your house would be worse.

DRIVEMAN OUT!!
Posted by LSU Grad Alabama Fan
369 Cardboard Box Lane
Member since Nov 2019
12912 posts
Posted on 9/12/24 at 2:44 pm to
quote:

Also, can anyone give me a detailed explanation of steps I need to take for this whole process


Get some gasoline.
Posted by 4x4tiger
Louisiana
Member since Feb 2006
4366 posts
Posted on 9/12/24 at 2:44 pm to
quote:

had friend suggest that I deactivate one of the heating elements and thereby reduce the amount of power that the water heater will draw.


RIP
Posted by csorre1
Member since Apr 2010
6815 posts
Posted on 9/12/24 at 2:45 pm to
quote:

Tiger Ryno


quote:

DRIVEMAN OUT!!


I must be out of the loop on something.
Posted by BigBinBR
Baton Rouge
Member since Mar 2023
7319 posts
Posted on 9/12/24 at 2:45 pm to
quote:

I had friend suggest that I deactivate one of the heating elements and thereby reduce the amount of power that the water heater will draw. I'm guessing I'd still need 240V rather than 120, but I'm not sure. It would be awesome if I could just use a 12 or 14 gauge extension cord instead of a really expensive 10 gauge, but I don't want to do anything that will catch my house on fire.
No offense, but if you are asking these questions you shouldn’t be doing anything your friend suggested. Just hook up your fridge and a light or 2 to the generator. Your family will be fine for 2 days without hot water.
This post was edited on 9/13/24 at 8:52 am
Posted by leftovergumbo
Member since May 2018
511 posts
Posted on 9/12/24 at 2:46 pm to
quote:

skip the hot water


My "cold" water comes in hot this time of year. When I had a fish tank, I had to add ice during water changes because the fish liked 85°
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
136982 posts
Posted on 9/12/24 at 2:46 pm to
There was a thread about how to backfeed your house through the dryer. It’s not difficult but I don’t think I’d run something on a 6 KW generator that pulls that much power
Posted by Drunken Crawfish
Member since Apr 2017
3857 posts
Posted on 9/12/24 at 2:46 pm to
You can't come to a message board for electrical advice and expect "safe".

Plug your refrigerator in and do some pushups so you don't mind a cold shower
Posted by triggeredmillennial
Member since Aug 2023
182 posts
Posted on 9/12/24 at 2:46 pm to
Your friend is a jack wad. Each element is 4.5 kW and they are wired to be staged. Only one is ever on at a time and they each draw 4.5 kW.

For what it’s worth, There’s a ton of hotels in the metro area for just over $100 a day. Just do that, It’s damn near breakeven
Posted by auggie
Opelika, Alabama
Member since Aug 2013
29597 posts
Posted on 9/12/24 at 2:59 pm to
Go take showers at a truck stop.
Posted by BabyTac
Austin, TX
Member since Jun 2008
14255 posts
Posted on 9/12/24 at 3:03 pm to
Like on Apollo 13, back feed/plug the generator in then it’s all about the order in which you turn things on. Trial and error. bypass the entire breaker panel with jumpers to keep shite from tripping offline while your just trying shite out.

This post was edited on 9/12/24 at 3:06 pm
Posted by Ingeniero
Baton Rouge
Member since Dec 2013
20185 posts
Posted on 9/12/24 at 3:07 pm to
Plug your fridge in and heat some water on the stove for a bath like you're in the middle ages or something
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
136982 posts
Posted on 9/12/24 at 3:08 pm to
quote:

bypass the entire breaker panel with jumpers to keep shite from tripping offline while your just trying shite out.
Posted by Roy Curado
Member since Jul 2021
1356 posts
Posted on 9/12/24 at 3:10 pm to
Go take a trip to a hotel with AC.
Posted by WonPercent
BATON ROUGE
Member since Aug 2023
766 posts
Posted on 9/12/24 at 3:16 pm to
"My family cannot stand the power being off much longer."

"generator is 6kW"

What am I missing here? It hasn't even been 24 hours since the storm. Run an extension cord to your fridge and a couple of fans and plug in a window unit. A cold shower never hurt anyone.
Posted by td1
Baton Rouge
Member since Oct 2015
3069 posts
Posted on 9/12/24 at 3:20 pm to
You will probably trip the generator breaker if you HWH is on and the fridge compressor kicks on. Look at the fridge’s tag and look for the LRA. That will be a good estimate of the surge it will pull when the compressor kicks on.

But, extension cord the fridge, run a window unit, and power up the internet/tv. Forget about the hwh, it’s not worth it.
Posted by lostinbr
Baton Rouge, LA
Member since Oct 2017
11687 posts
Posted on 9/12/24 at 3:22 pm to
quote:

My family cannot stand the power being off much longer. Is there a safe way to power my house using a portable generator? The power rating for the generator is 6kW, and I want to run my electric water heater (4.5kW) and my refrigerator (0.5kW) and possibly a few lights.

Wait.. do you already have a 6 kW generator? If so why aren’t you already running your fridge and some lights?

Running your refrigerator and water heater at the same time might be a stretch. It’ll depend on whether the generator can handle the inrush when your refrigerator compressor kicks on. But even that can be done with extension cords.
Posted by jflsufan
Baton Rouge, LA
Member since Mar 2013
4734 posts
Posted on 9/12/24 at 3:25 pm to
quote:

Like on Apollo 13, back feed/plug the generator in then it’s all about the order in which you turn things on. Trial and error. bypass the entire breaker panel with jumpers to keep shite from tripping offline while your just trying shite out.


This. It's all in the sequencing.
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