Portable Generators

/ Portable Generators #102  
Correct. You double the amperage not the voltage.

What if you set one on top of the other rather than side by side? Does that double the potential? :D
 
/ Portable Generators #105  
Then explain EXACTLY how to do it, on two small Honda generators???

All the kits made to connect two inverter gen sets from the factory are parallel kits...

SR
A paralling kit doubles the amperage available.... It doesnt make a 120 gen operate at 240. If you had two 2,000 watt generators that each provided 16.6 amps of power @ 120 volts, by paralling them you can get 33.2 amps at 120 volts.
 
/ Portable Generators #106  
<snip>

We also had an EU3000is, which got stolen from work. All moot as OP needs 240 for well pump.
Why bring up the OP - For a while I thought this was only about smog pollution and burning wood :)

OH!! The Original Poster:

Looking to get a portable gas generator, around 8,000 - 10,000 watt generator output. This will be to operate the well water pump during construction and some power tools. It will later be used as a backup power in case the main electric power goes out.

Been looking at Generac and Honda.

Generac XP8000E (clean power design for sensitive electronic equipment) - $2,400
NorthStar Honda - $2,300

Any other ideas, comments or recommendations?
Well if you can run the "sensitive electronic equipment" off a battery based UPS this might be a potential solution:

Duromax (which I wrote about WAY back in this thread) has their 10KW on sale again.
Go to ebay for DuroMax 10000 Watt Hybrid Dual Fuel Portable Gas Propane Generator .
And then apparently there is a coupon code C20LABORDAY for another $50 off.

Several of us on TBN have bought this over the last year or so since this thread and I can't remember any complaints.

/edit
It's been on sale a couple of times over the last year, normally for $699. I've one and it saved my son and his family of going to a motel when his power went out for days and we used it for hours off and on to run construction equipment.

$650 versus $2,300.
 
Last edited:
/ Portable Generators #107  
Looks like it is around $1,000 now.

Read through the comments and many satisfied users.

Complaints I read were more about support or the noise rating being measured at 21' away.
 
/ Portable Generators #108  
I wonder if today's appliances are "sensitive electronic equipment". The Generac write up makes a point of saying it is safe for appliances.
 
/ Portable Generators #109  
Good question...

I buy UPS power supplies for work and most often the Uninterruptable Power Supplies Specified are Sine Wave Units which cost more than modified sine wave.

A manufacturers of sensitive medical equipment supply the UPS seeing it as critical.

All of the UPS units I install are connected to the facility Emergency Power Generator which typically provides power transfer in 6 seconds from power loss, generator start, load transfer... so these UPS units only bridge less than 10 seconds from loss of utility power to transfer plus they also provide voltage variation protection...
 
/ Portable Generators #111  
It seems I am putting more equipment on sinewave UPS at the Hospital...

If I were building a new hospital I would design UPS circuits back to the panel rooms... much easier on the maintenance than under desks and in the Operating Rooms.

Hubel Outlets throughout the facility... most are Hospital Spec 20 amp with some being Orange Isolated Ground Hospital Spec 20 amp and some being Red Emergency Power Hospital Spec 20 amp...

Regularly I will find things like bed warmers plugged into E-power and things like Patient Monitors plugged into non-E-power... totally opposite of how they should be even being color coded and all.

All of our Surgery Microscopes and some of the Opto equipment are now on UPS in addition to E-power because even with a typical 6 second transfer lag who wants a Doctor doing micro surgery in the dark for even one second.

Unfortunately Utility Power seems to go out too often... maybe 90 minutes every other month... most often it's a vehicle collision with a utility pole or sometimes a utility transformer blows... then it is more like 6 hours...

The local grid dates from the post WWII and above ground... I can imagine it would be worse if the Bay Area was subject to lightning caused outages.
 
/ Portable Generators #112  
Another solution is a line stabilizer. In the old days of variable line voltages from the power company, we used autotransformers that would hold voltage within 1%. I still have one that I used in my darkroom in the old days to keep power fluctuations from changing exposure times on my enlarger. Essentially it's a 35 lb. L-C choke. I would be surprised if any line noise managed to make it through the windings.
 
/ Portable Generators #113  
Here in the midwest we need to make sure the furnace is working during the winter. At the house I am in now we actually have a boiler. Natural gas provides the fuel to heat the water, but there is an electric pump for circulating the water. So a gen set will be installed. I have a 6700 (running) watt gen set. Gasoline powered. Usually here there is no problem getting gasoline. So no need to store 5 days worth for a hurricane or something similar. If we had the polar vortex coming I would fill the tank on the gen and have 15 gal of gas in cans. That would give me 20 gal and I could make it last 3 days. Plus both vehicles would be full and I could siphon from there so that is another 30 gal or so.

I am always amazed at people who live here and do not keep their eye on the weather and make sure the fridge is stocked when we have a blizzard on the way.
 
/ Portable Generators #114  
Here in the midwest we need to make sure the furnace is working during the winter. At the house I am in now we actually have a boiler. Natural gas provides the fuel to heat the water, but there is an electric pump for circulating the water. So a gen set will be installed. I have a 6700 (running) watt gen set. Gasoline powered. Usually here there is no problem getting gasoline. So no need to store 5 days worth for a hurricane or something similar. If we had the polar vortex coming I would fill the tank on the gen and have 15 gal of gas in cans. That would give me 20 gal and I could make it last 3 days. Plus both vehicles would be full and I could siphon from there so that is another 30 gal or so.

I am always amazed at people who live here and do not keep their eye on the weather and make sure the fridge is stocked when we have a blizzard on the way.

It would be great to convert the generator to natural gas. You wouldn't have to worry unless both gas and electricity went out. If that happens, I hope you have arctic sleeping bags!
 
/ Portable Generators #115  
It would be great to convert the generator to natural gas. You wouldn't have to worry unless both gas and electricity went out. If that happens, I hope you have arctic sleeping bags!

We had a snow storm around 1990 in Roanoke.
Some electricity around the city went out. The power to natural gas pumps, of course, was on the list.
Many of my co-workers had electricity to their home,, but, no natural gas.
They were staying in motels. :confused2:

Nothing is "perfect",,, :confused:
 
/ Portable Generators #116  
It would be great to convert the generator to natural gas. You wouldn't have to worry unless both gas and electricity went out. If that happens, I hope you have arctic sleeping bags!

I had actually looked into buying a tri fuel generator (gasoline, propane and nat gas). The cost of piping for the nat gas was an outrage. Of course where the meter is located at the new house it should not be a problem..... hmmm.....

Is it hard to convert the gasoline gen set I have to run either? Also what kind of "penalty" do I take? I know nat gas is less energy dense than gasoline so that will result in less wattage from the gen set.
 
/ Portable Generators #117  
/ Portable Generators
  • Thread Starter
#118  
Is using conventional 5w-30 motor oil in a Honda generator OK?

After break-in, is using synthetic motor oil a better option to reduce engine wear?
 
/ Portable Generators #119  
Is using conventional 5w-30 motor oil in a Honda generator OK?

After break-in, is using synthetic motor oil a better option to reduce engine wear?

What does the user manual say?

If you're really worried about engine wear then get a water cooled diesel generator. :D
 
/ Portable Generators #120  
If you're really worried about engine wear then get a water cooled diesel generator. :D
Have you ever heard of an "air cooled" Deutz engine?? How about an "air cooled" SLH engine??

They last as long or longer than any of the water cooled engines and have less things on them, in the cooling system, to go wrong!

BTW, I run Mobil 1 10w-30 synthetic in my Honda generator.

SR
 

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