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Old 05-10-2020, 11:15 AM   #1
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Super quiet 3500 watt inverter generator

Just wanted to tell the group of a generator find I made after extensive search.
I was looking into the HARBOR FREIGHT PREDATOR "3500 Watt Super Quiet Inverter Generator". After reading and researching I found that the NORTHERN TOOL "Powerhorse Inverter Generator ó 3500 Surge Watts, Model# LC3500i" was the SAME generator
There are 2 MAJOR DIFFERENCE between the Harbor freight & Northern tool genset.
  • The Northern Tool Product was $699.00 while the Harbor Freight genset was $799.00 (749.00 on sale)
  • "Both Vendors offer an 2 year limited warranty but with on huge difference. Northern Tool offers "in house repair" of the product while Harbor freight does not."
The product is VERY QUIET, I ran the new generator under 75% load and it hums.
This generator is perfect for my adventures dry camping, under the stars in Everglades National Park.
Hope this helps.
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Old 05-11-2020, 08:17 AM   #2
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noise

IMHO: 57 decibels at 1/4 load is not Super Quiet.

There are other units that out there that are under 50 decibels at 1/4 load and at full load only 1 decibel higher than the Powerhorse at 1/4 load.


C.B.
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Old 05-11-2020, 08:43 AM   #3
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Quote:
Originally Posted by cbvp View Post
IMHO: 57 decibels at 1/4 load is not Super Quiet.

There are other units that out there that are under 50 decibels at 1/4 load and at full load only 1 decibel higher than the Powerhorse at 1/4 load.


C.B.
Please list them, as I am sure they are nowhere near the price or wattage.

For the record, Norethern Tool must have upped the prices, as they list them at $749 now. Still $50 cheaper than Harbor Freight.

You can get a "DuraDrive" copy, which again is the exact same generator for $699

Here

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Old 05-11-2020, 09:08 AM   #4
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My reply had nothing to do about price. Only noise.

Like I said IMHO 57 decibels at quarter load is not super quiet.

C.B.
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Old 05-11-2020, 09:35 AM   #5
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My reply had nothing to do about price. Only noise.

Like I said IMHO 57 decibels at quarter load is not super quiet.

C.B.
Agreed.
57dB at 25% load vs 49dB at 100% load. Considering that a 10dB increase in sound is interpreted by the ears as being twice as loud, that 8dB difference means that most people would consider the cheapie running at 1/4 load to be almost twice as loud as the more expensive one running at full power. Run both at full power and the noise difference would be even worse.
It matters, of course, from how far away you take your measurements and I don't see that in either spec sheet. I don't know if there is a standardized test distance or not. Even though the cheapie may be considered quiet, it certainly shouldn't be classified as super quiet, IMO.
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Old 05-11-2020, 10:52 AM   #6
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Originally Posted by cbvp View Post
My reply had nothing to do about price. Only noise.

Like I said IMHO 57 decibels at quarter load is not super quiet.

C.B.
Shouldn't we stick to comparing apples to apples? Sure a Honda 2000 watter at 1/4 load will be quieter. By a whole 4db (and for arguments sake, a 3db gain is the level that the average human ear can discern a difference in loudness between two sources.)

If we look at 3500 watt generators. 57 is pretty damn quiet.

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Old 05-11-2020, 11:51 AM   #7
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gen

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Originally Posted by Cowracer View Post

If we look at 3500 watt generators. 57 is pretty damn quiet.

Tim


No It's Not!

Since you brought up Honda

3000i (handi) 52@1/4 load 58@ rated

3000is 50@ 1/4 load 57@ rated


7000i 52@1/4 load 58@ rated


If you'll notice the Powerhorse doesn't give a decibel level at ratedv power.

Mmmmmm Wonder why that is?


C.B.
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Old 05-11-2020, 12:31 PM   #8
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No It's Not!

Since you brought up Honda

3000i (handi) 52@1/4 load 58@ rated

3000is 50@ 1/4 load 57@ rated


7000i 52@1/4 load 58@ rated


If you'll notice the Powerhorse doesn't give a decibel level at ratedv power.

Mmmmmm Wonder why that is?


C.B.
3000I is $2300

300Is is $2100

Powerhouse is $750.

You are not comparing same class of generators. It's like saying a Mercedes is a nicer car than a Chevrolet. Of course it is.

Tim
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Old 05-11-2020, 01:16 PM   #9
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Like I said before.

I'm not comparing Price. Just noise level.

A generator with a noise level of 57 decibels at 1/4 load at any price is NOT and should NOT be advertised as a SUPER QUIET generator.



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Old 05-11-2020, 02:09 PM   #10
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Quote:
Originally Posted by cbvp View Post
Like I said before.

I'm not comparing Price. Just noise level.

A generator with a noise level of 57 decibels at 1/4 load at any price is NOT and should NOT be advertised as a SUPER QUIET generator.



C.B.
It would be SUPER QUIET, next to an open frame contractor-style generator. How do you know that they're saying that and referring to other inverter generators?
It's just marketing.
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Old 05-11-2020, 02:53 PM   #11
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As a point of reference, easy conversational speech is about 60 dB to 65 dB. Perceptually, a 10 dB difference is either half as loud or twice as loud depending on the direction you are going. From this audiologist's perspective, you are starting to split hairs. 57 dB is very quiet for a generator and, yes, 49 dB is quieter. But sound really starts to interfere with your ability to converse as it goes above 70 dB and is really bothersome at 75 dB+. The scale is logarithmic and not linear. So, 65 dB to 70 dB is a much greater change in sound force energy than 50 dB to 55 dB. Both values (49 dB and 57 dB) discussed here are quiet, just different degrees of quiet.
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Old 05-11-2020, 03:57 PM   #12
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I've got to jump in here. I've had and enjoyed a Generac 3000 used at home base, then a Yamaha 2000 when camping, the Honda companion setup, a Boliy 3000, a Champion 3500, and now the best yet, the Westinhouse 4500. All were inverters except the Generac. My point is this...each one did a good job supplying needed electric for my purpose, increasing output as my demands increased. Noise was acceptable when set up correctly. But here's the thing. The Westinghouse, also available as a Cummins, is powerful, not too heavy, quiet under load and when on eco, and remote start/stop. 3 year warrenty and less than $900 from; damn, I can't remember. Hope this helps. I'm done.
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Old 05-11-2020, 04:04 PM   #13
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Just got off the phone with powerhorse tech.


Powerhorse

Model LC3500i


69 decibles at rated load.


Honda
Model

3000i (handi) 58 decibels at rated load

3000is 57 decibles at rated load.


C.B.
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Old 05-11-2020, 04:08 PM   #14
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Originally Posted by Florida.Traveler View Post
<<SNIP>>
I was looking into the HARBOR FREIGHT PREDATOR "3500 Watt Super Quiet Inverter Generator". After reading and researching I found that the NORTHERN TOOL "Powerhorse Inverter Generator ó 3500 Surge Watts, Model# LC3500i" was the SAME generator
<<SNIP>>
The product is VERY QUIET, I ran the new generator under 75% load and it hums.
This generator is perfect for my adventures dry camping, under the stars in Everglades National Park.
Hope this helps.
Thanks for the tip.

For a $1550 savings over a Honda, and 500 watts more starting power to boot, this is a great option, even if it is slightly noisier.
A friend has a 2KW Honda and a 2KW Predator, and he pairs them to run his AC. The SPL difference is undetectable in the real world, especially when they are at the far end of his power cable, behind the camper, with exhausts pointing away from the site.

IF NOISE MATTERS MOST, then get a big one. At nearly $5000, the 7000 watt Honda might be priced like a used car, but it can supply a typical RV load without coming up much off idle. I witnessed this when a contractor parked nearby and had a big 6300 watt Yamaha inverter on the "toy hauler" rack on the tongue of his hybrid. It was shockingly quiet even with the AC on in his rig. But at nearly $3000 more than the Powerhorse/Predator, I'll bank that money and invest about $800 of it into a decent solar setup.

As the old saying goes,

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Old 05-11-2020, 04:28 PM   #15
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Quote:
Originally Posted by cbvp View Post
Just got off the phone with powerhorse tech.


Powerhorse

Model LC3500i


69 decibles at rated load.


Honda
Model

3000i (handi) 58 decibels at rated load

3000is 57 decibles at rated load.


C.B.

Dunno why you insist that noise level is the only consideration to use when looking at generators, but you information has been duly noted.

Tim
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Old 05-11-2020, 04:52 PM   #16
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Quote:
Originally Posted by cbvp View Post
IMHO: 57 decibels at 1/4 load is not Super Quiet.

There are other units that out there that are under 50 decibels at 1/4 load and at full load only 1 decibel higher than the Powerhorse at 1/4 load.


C.B.

I'm curious too, which units are you talking about under 50 dbl at 1/4 load?
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Old 05-11-2020, 04:57 PM   #17
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Originally Posted by rfifer View Post
As a point of reference, easy conversational speech is about 60 dB to 65 dB. Perceptually, a 10 dB difference is either half as loud or twice as loud depending on the direction you are going. From this audiologist's perspective, you are starting to split hairs. 57 dB is very quiet for a generator and, yes, 49 dB is quieter. But sound really starts to interfere with your ability to converse as it goes above 70 dB and is really bothersome at 75 dB+. The scale is logarithmic and not linear. So, 65 dB to 70 dB is a much greater change in sound force energy than 50 dB to 55 dB. Both values (49 dB and 57 dB) discussed here are quiet, just different degrees of quiet.
This is great information! Coming from an audiologist, I put more value on this than the google experts. And what I gather is the generator the OP is referring to seems to be a good bang for the buck.
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Old 05-11-2020, 04:57 PM   #18
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Now boys settle down. I have a 24,000 watt generator you can't even hear. Made by Duke Power. So there
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Old 05-11-2020, 09:52 PM   #19
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Maybe the way to work this out is to divide watts by decibels and watts by dollars?
My home standby comes out pretty good and itís a Kohler 50kw 3ph powered by a 7.5 Ford running at 1800 rpm.
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Old 05-12-2020, 07:15 AM   #20
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Quote:
Originally Posted by cbvp View Post
IMHO: 57 decibels at 1/4 load is not Super Quiet.

There are other units that out there that are under 50 decibels at 1/4 load and at full load only 1 decibel higher than the Powerhorse at 1/4 load.


C.B.

Please list a couple otherwise I'm starting to believe the "advise" on a forum is as good as the "advise" I get from my local saloon.
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