Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-03-2013, 02:11 PM   #1
Newbie
 
Join Date: May 2013
Posts: 3
Share |
Default

Generator - Whole House (Kohler/Genarac) HELP!


Hey,

Just wanted to get some input on a whole home generator.

House Built: 2009
Square feet: 8000

I've been told by a couple of estimates that a 35-40kw generator is sufficient to run my entire home. I've been looking at the 36kw Generac Quietsource as well as the 38kw Kohler (38RCL). The estimates I received for unit + install for the 36kw Generac was around 30k, while the unit + install cost for a 48kw Kohler was around 33k. (Didnt get an estimate for the 38kw Kohler)

I've been going through these prices and keep telling myself that these install costs seem too high. Anyone can give any input as to a rough estimate of the install costs for these generators? Any advice is greatly appreciated. Thanks!

slaydemon is offline   Reply With Quote
Old 05-03-2013, 03:13 PM   #2
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,778
Default

Generator - Whole House (Kohler/Genarac) HELP!


NO WAY at all anyone can give you even a WAG as to an estimate based soley on the size of your house and the size of the generator.
What is making you tell yourself that these install costs seem too high???

__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC. If you're on the '14 already I feel sorry for you.
Speedy Petey is online now   Reply With Quote
Old 05-03-2013, 03:24 PM   #3
Newbie
 
Join Date: May 2013
Posts: 3
Default

Generator - Whole House (Kohler/Genarac) HELP!


I figured it would be too difficult but i gave it a shot. I feel like they are too high because the Kohler guy is also offering 20kw unit + install for 10k, I figured the 38kw/48kw wouldn't be much more. Thanks for the reply
slaydemon is offline   Reply With Quote
Old 05-03-2013, 03:34 PM   #4
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,778
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by slaydemon View Post
I figured it would be too difficult but i gave it a shot. I feel like they are too high because the Kohler guy is also offering 20kw unit + install for 10k, I figured the 38kw/48kw wouldn't be much more. Thanks for the reply
You figured way, WAY wrong.
The Kohler guy conveniently neglected to tell you that there is a huge jump after 20kW, ESPECIALLY when you go from the cheap air cooled resi models to the low RPM water cooled models.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC. If you're on the '14 already I feel sorry for you.
Speedy Petey is online now   Reply With Quote
The Following 3 Users Say Thank You to Speedy Petey For This Useful Post:
Jim Port (05-03-2013), Nailbags (05-03-2013), stickboy1375 (05-03-2013)
Old 05-03-2013, 05:07 PM   #5
Member
 
Join Date: Nov 2012
Posts: 41
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by slaydemon View Post
Hey,

Just wanted to get some input on a whole home generator.

House Built: 2009
Square feet: 8000

I've been told by a couple of estimates that a 35-40kw generator is sufficient to run my entire home. I've been looking at the 36kw Generac Quietsource as well as the 38kw Kohler (38RCL). The estimates I received for unit + install for the 36kw Generac was around 30k, while the unit + install cost for a 48kw Kohler was around 33k. (Didnt get an estimate for the 38kw Kohler)

I've been going through these prices and keep telling myself that these install costs seem too high. Anyone can give any input as to a rough estimate of the install costs for these generators? Any advice is greatly appreciated. Thanks!
Lol, greatest humblebrag of all time?
r_marcinko is offline   Reply With Quote
Old 05-03-2013, 06:16 PM   #6
Member
 
Join Date: Oct 2012
Location: Lansing,MI
Posts: 167
Default

Generator - Whole House (Kohler/Genarac) HELP!


big house+big generator = big $ How much is the convience worth to you?
HVACTECH96 is offline   Reply With Quote
Old 05-03-2013, 08:03 PM   #7
Member
 
Join Date: Jan 2012
Location: Pacific North west
Posts: 1,179
Default

Generator - Whole House (Kohler/Genarac) HELP!


why not just isolate a few circuits to run off the generator and just limt your useage to 10,000 watts?
For me I run just some lights and my well. For the cost of what you want how many times per month does your power go out?
Nailbags is offline   Reply With Quote
Old 05-03-2013, 08:04 PM   #8
Bill Kearney
 
Join Date: Apr 2009
Location: Bethesda, MD USA
Posts: 1,874
Default

Generator - Whole House (Kohler/Genarac) HELP!


You don't have your location put in your profile, which makes it difficult to offer location-specific advice.

The jump from a 20kw to a larger unit can be considerable, as 20kw is still air-cooled. The larger ones have a radiator and a water-cooled engine setup. Lots more $$$.

It all depends on what you want powered during the outages. And what loads will be handled. Keeping all 8,000 sqft cool during a sweltering Miami heatwave and you're definitely looking at a larger unit. Or if you've got electric heat during a northern blizzard. So square footage alone won't be enough info.
wkearney99 is offline   Reply With Quote
Old 05-03-2013, 09:26 PM   #9
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,137
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by slaydemon View Post
Hey,

Just wanted to get some input on a whole home generator.

House Built: 2009
Square feet: 8000

I've been told by a couple of estimates that a 35-40kw generator is sufficient to run my entire home. I've been looking at the 36kw Generac Quietsource as well as the 38kw Kohler (38RCL). The estimates I received for unit + install for the 36kw Generac was around 30k, while the unit + install cost for a 48kw Kohler was around 33k. (Didnt get an estimate for the 38kw Kohler)

I've been going through these prices and keep telling myself that these install costs seem too high. Anyone can give any input as to a rough estimate of the install costs for these generators? Any advice is greatly appreciated. Thanks!

need to know how your house is HEATED , dryer,and hot water ...gas, oil , electric ??

how much AC by the tonage ...

next is there Natural gas or propane available on site ??

A Kolher Generator can only be started the first time by a KOLHER authorized Service person ...anyone can install it ...
__________________
Philadelphia Master Electrician-Generac Dealer
Philly Master is offline   Reply With Quote
The Following User Says Thank You to Philly Master For This Useful Post:
Kyle_in_rure (05-03-2013)
Old 05-03-2013, 09:40 PM   #10
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 13,826
Default

Generator - Whole House (Kohler/Genarac) HELP!


You really only need to keep the food cold, heat on, a few lights, so you can find your way through the home, until power is restored. You really do not need to power the whole house, as if you had the PoCo live to it. Now of course, you can supplement during the day, by using solar panels on the roof, so that you do not need to run the genset until later in the eve, to help charge the batteries for fall-over from poco to backup, if you opt to place a battery backup system in place also.

It really comes down to how deep is your pocketbook on this project, what is the longest outage that you have had in the past six months, how many outages do you get a month, and is it really something that will help in the resale value of the home, especially if others in your neighborhood have gensets also. Also is there a medical need for the genset to power DME (Durable Medical Equipment), for a person in the home that needs say a O2 regenerator, etc..

Around here, the longest that we have been without power is about 24 hours, and by then you usually are getting stuff iced down out of the ice box & freezer, and deciding if it is worth staying home with no heat if above 40 during the day & night, or in the 80's or higher with high humidity, when you can go to a friend or family members place with the goods (ie electric).

A lot in my area that have grown up with power outages, tend to live with them, and learn to remember what it was like in the days without home computers and dvr's. The wife joked with me, when I put up a OTA antenna in our attic, but if we ever lose our ATT U-Verse feed, we have at least a way to still get local news and information, same with having a radio to pick up am/fm broadcasts.
__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is online now   Reply With Quote
The Following User Says Thank You to gregzoll For This Useful Post:
Kyle_in_rure (05-03-2013)
Old 05-04-2013, 02:32 PM   #11
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,778
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by Philly Master View Post
need to know how your house is HEATED , dryer,and hot water ...gas, oil , electric ??

how much AC by the tonage ...

next is there Natural gas or propane available on site ??
True.




Quote:
Originally Posted by Philly Master View Post
A Kolher Generator can only be started the first time by a KOLHER authorized Service person ...anyone can install it ...
NOT true.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC. If you're on the '14 already I feel sorry for you.
Speedy Petey is online now   Reply With Quote
The Following User Says Thank You to Speedy Petey For This Useful Post:
gregzoll (05-04-2013)
Old 05-04-2013, 04:38 PM   #12
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,137
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by Speedy Petey View Post




NOT true.

C/P from internet ...

"warranty info again and it turns out that Kohler cannot deny me warranty service if someone other than an authorized dealer/distributor performs that startup function. It does say that if there is an issue during startup, that I would have to pay for a startup service to rectify the problem. It also says that if there is an issue down the road and the system was not installed properly (which is verified during the startup service) that they can deny me warranty coverage. So if you are a DYIer or acting as your own general contractor, fear not on the startup.xxxx'



read what ever Warranty you have ..

Kolher comes out with a laptop and plugs in in ....JUST FYI
__________________
Philadelphia Master Electrician-Generac Dealer
Philly Master is offline   Reply With Quote
Old 05-04-2013, 04:39 PM   #13
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,137
Default

Generator - Whole House (Kohler/Genarac) HELP!


Quote:
Originally Posted by gregzoll View Post
You really only need to keep the food cold, heat on, a few lights, so you can find your way through the home, until power is restored. You really do not need to power the whole house, as if you had the PoCo live to it. Now of course, you can supplement during the day, by using solar panels on the roof, so that you do not need to run the genset until later in the eve, to help charge the batteries for fall-over from poco to backup, if you opt to place a battery backup system in place also.

It really comes down to how deep is your pocketbook on this project, what is the longest outage that you have had in the past six months, how many outages do you get a month, and is it really something that will help in the resale value of the home, especially if others in your neighborhood have gensets also. Also is there a medical need for the genset to power DME (Durable Medical Equipment), for a person in the home that needs say a O2 regenerator, etc..

Around here, the longest that we have been without power is about 24 hours, and by then you usually are getting stuff iced down out of the ice box & freezer, and deciding if it is worth staying home with no heat if above 40 during the day & night, or in the 80's or higher with high humidity, when you can go to a friend or family members place with the goods (ie electric).

A lot in my area that have grown up with power outages, tend to live with them, and learn to remember what it was like in the days without home computers and dvr's. The wife joked with me, when I put up a OTA antenna in our attic, but if we ever lose our ATT U-Verse feed, we have at least a way to still get local news and information, same with having a radio to pick up am/fm broadcasts.
LOL with an 8,000 square foot house this is not customary ...LOL .... maybe in the trailer park
__________________
Philadelphia Master Electrician-Generac Dealer
Philly Master is offline   Reply With Quote
Old 05-04-2013, 04:40 PM   #14
Newbie
 
Join Date: May 2013
Posts: 3
Default

Generator - Whole House (Kohler/Genarac) HELP!


I live in central NJ, and I have natural gas.

I understand that the higher kw generators are more expensive... but I dont understand the installation charge.
For a 20kw kohler, unit costs 5-6k + another 5-6k for installation
For a 38kw kohler, unit costs 13k + another 18k for installation

Why is the installation charge so much higher for the bigger unit? I understand its bigger and more difficult to install, but over a 3x price jump is alot and I'm curious as to why. Thanks for the help guys
slaydemon is offline   Reply With Quote
Old 05-04-2013, 04:54 PM   #15
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,137
Default

Generator - Whole House (Kohler/Genarac) HELP!


One of the things that drive an installation is wire size and distances ....

next biggie is the GAS pipe size ....

20kw is 1 1/4" once you get to about 25 feet ... figure its about 275,000 BTU's at full load

the 35kw is about 577,000 BTU's .. so 2.5" to 3" pipe

next 4 guys can pick up and move a 20kw ... flat ground 30' to 40' or use a hand truck ..

the 35 kw will need maybe a crane to lift it into place depending on location ...and access

__________________
Philadelphia Master Electrician-Generac Dealer

Last edited by Philly Master; 05-04-2013 at 04:57 PM.
Philly Master is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
My house's previous owner - DIY horror stories Leah Frances General DIY Discussions 128 03-18-2014 06:41 AM
Attaching wood fence to house TheCowGod Building & Construction 5 04-13-2012 03:57 PM
Attach ledger to vinyl sided house JamyTheBuilder Building & Construction 3 03-14-2012 02:54 PM
Fixing weekend house staining that went awry jb888s Painting 10 08-17-2009 10:01 PM
I have Central Heating & Air, but house won't cool down..HELP!! exiledone1 HVAC 13 07-10-2009 10:09 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.