yamaha inverter generator: how to run inside?

shan rose

New member
May 11, 2009
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I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?
 
I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?
 
Shan,

Venting the exhaust outside would handle the stuff that would kill you
(obviously), however, how would you handle the heat radiated from the engine
and generator?

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces
[mailto:gmclist-bounces] On Behalf Of Shan Rose
Sent: Tuesday, January 25, 2011 6:27 PM
To: gmclist
Subject: [GMCnet] yamaha inverter generator: how to run inside?

I just bought one of these super quiet gens, will run 12 hrs on a gallon of
gas. I wanna be able to run it inside. This would especially be useful if it
were raining outside. It seems all I would need to do is vent the exhaust to
the outside? Any ideas?
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GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
> I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?

Shan;

I'm a big fan of those Yamaha gennies. I've probably bought a couple dozen of them over the past 15 years for work [fire dept] and they've been flawless. The only proviso is to ensure you turn the fuel off before transporting as they're very prone to flooding from the vibration of being carried down the road.

but you've set yourself a very technical, and potentially dangerous, goal if not executed near perfectly.

when you say inside, do you mean in the generator bay, or right inside the coach. my comments below refer to an interior approach. even if you meant in the current gennie bay, the removal of heat from the engine is probably the major issue as well as getting the exhaust extended out from under the coach.

Being able to set the generator up to safely run inside your coach is quite a challenge.

exhaust is just part of it. every part of the engine exhaust has to be perfect, of course, from the cylinder head on out.

getting the exhaust through the side of the coach requires a fair bit of thought, too. I've been to quite a few fires over the years where generator exhaust [900+ degrees at times] has ignited walls and materials too close to the exhaust piping. In a building, the safe setback is about 8 inches in radius from the exhaust pipe, with noncombustible materials within that range. Below the beltline, our coaches are sheet moulded compound which is, of course, quite combustible when exposed to high heat in a prolonged situation.

heat soaking is another. inside your coach would take on a fair bit of heat as the flywheel fan pushes air across the engine.

oxygen consumption of the interior air will occur at a much greater rate than some other heat sources.

The fire fighter in me discourages the idea unless you can more than address these issues.

my first thought is to leave the gennie outside and build a rain cover for it if you feel the need to protect it from the elements.

Deputy Chief Scott, Sudbury, ON, Canada

>
 
Scott, thank you for saving me a lot of writing time.

Pleasure boat people keep trying to do this and the results are never good. Some have been tragic.

If these units are not listed rain-proof (my 35yo Honda is not), make a rain cover.
Get a long enough pigtail so you can place the unit where it will not spill exhaust back into the coach living spaces. (This make take several tries if you are not a sailor.)
Have a working CO detector (a good idea anyway).

If you think read all this and think it all through, you will understand how dangerous all this stuff is but you can do it with enough safety margin.

Someone told me once that we start out life with an empty bag for experience and a full bag of luck. The big trick is to not run the luck bag dry before the experience bag is full.

Matt
--
Matt & Mary Colie
'73 Glacier 23 Chaumiere (say show-me-air)
SE Michigan - Twixt A2 and Detroit
 
Scott, thanks for your input, my father was also a fireman, he was ca=
ptain of the treasure island fire dept back in the 80's. soI can definately=
appreciate the input from someone in your field. Basically the desire to r=
un the unit inside is more for ease of use, and I know would be somewhat of=
a challenge but not impossible. first I should state the model, it is a ya=
maha EF2000iS shown here http://www.yamahagenerators.com/yamaha_generator_e=
f2000is_pr_51.html which is a small hand portable gen, it weighs only 44# s=
o I can carry this thing around with 1 hand, it generates 1.6kw 2kw surge c=
ontinuious, and I bought it because its hard to justify running the onan (m=
ine functions perfectly) for just TV, laptop or nuking a small dinner, the =
onan is simply overkill for these applications, so this small genset should=
be just the ticket. It is my understanding that they are insulated i=
nside for noise and heat, this would make sense considering the body is pla=
stic and thus couldnt get too hot or it would melt. what little heat genera=
ted by the 76cc engine would be a bonus when its cold, so it seems my main =
technical issue would be the venting of the exhaust. Obviously no one wants=
CO inside, I hada mild case of CO poisoning when I was a teen thanks to a =
leaky exhaust in a friends old station wagon, and its an experience I dont =
care to repeat. so basically I was looking for any one who has experience w=
ith that type of generator, and as to how hot it gets etc. it looks smally =
enough that with a little redesigning of the battery area I may be able to =
fit it in there which of course would solve all ventalation issues. but the=
n I though because it is recoil started it owuld be nice not to have to exi=
the coach to start it, so how dificult would it be to run indoors safely, =
and address the technical issues that may be involved... scot=

se super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to=
run it inside. This would especially be useful if it were raining outside.=
It seems all I would need to do is vent the exhaust to the outside? Any id=
eas? > > Shan; > > I'm a big fan of those Yamaha gennies. I've=
probably bought a couple dozen of them over the past 15 years for work [fi=
re dept] and they've been flawless. The only proviso is to ensure you turn=
the fuel off before transporting as they're very prone to flooding from th=
e vibration of being carried down the road. > > but you've set yourse=
lf a very technical, and potentially dangerous, goal if not executed near p=
erfectly. > > when you say inside, do you mean in the generator bay, =
or right inside the coach. my comments below refer to an interior approach=
. even if you meant in the current gennie bay, the removal of heat from th=
e engine is probably the major issue as well as getting the exhaust extende=
d out from under the coach. > > Being able to set the generator up to=
safely run inside your coach is quite a challenge. > > exhaust is ju=
st part of it. every part of the engine exhaust has to be perfect, of cour=
se, from the cylinder head on out. > > getting the exhaust through th=
e side of the coach requires a fair bit of thought, too. I've been to quit=
e a few fires over the years where generator exhaust [900+ degrees at times=
] has ignited walls and materials too close to the exhaust piping. In a bu=
ilding, the safe setback is about 8 inches in radius from the exhaust pipe,=
with noncombustible materials within that range. Below the beltline, our =
coaches are sheet moulded compound which is, of course, quite combustible w=
hen exposed to high heat in a prolonged situation. > > heat soaking i=
s another. inside your coach would take on a fair bit of heat as the flywh=
eel fan pushes air across the engine. > > oxygen consumption of the i=
nterior air will occur at a much greater rate than some other heat sources.=
> > The fire fighter in me discourages the idea unless you can more =
than address these issues. > > my first thought is to leave the genni=
e outside and build a rain cover for it if you feel the need to protect it =
from the elements. > > Deputy Chief Scott, Sudbury, ON, Canada > =
> > > > =09=09 =09 =09=09 > _________________________________=
______________ > GMCnet mailing list > List Information and Subscriptio=
n Options: > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist =
 
> I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?


Yeah - don't do it. A few people get killed each year running a generator indoors with what they thought was "adequate ventilation". Do you have a propane tank? If not it might work in that space. Otherwise I would make a platform on the rear bumper for the gen.
--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
 
Do not put an internal combustion engine in your living space. Buy a pup tent or awning for the generator, or put it under a plastic covered picnic table to protect from rain, and buy a long extension cord. I've seen people come in dead and alive, "cherry red" with CO poisoning, and a significant number of them were tempting fate in some way. Adding a CO alarm is a nice idea, but only as a backup to an approved heating or electrical system (such as a properly maintained and operating furnace). The actual number of deaths from non-fire related CO poisoning is relatively large, ca 500+/year. See the CDC's Morbidity and Mortality Weekly Report issue on CO poisoning at http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5650a1.htm

Michael J. Lincoln MD, FACMI
Internal and Pulmonary medicine
1978 Center Kitchen Royale

>
>

>> I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?
>
>
> Yeah - don't do it. A few people get killed each year running a generator indoors with what they thought was "adequate ventilation". Do you have a propane tank? If not it might work in that space. Otherwise I would make a platform on the rear bumper for the gen.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
AND, repeat, AND, only if you add one of those
vertical exhaust stacks that Camping World sells!

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~



----------------------------------------
> To: gmclist
> From: midlf
> Date: Tue, 25 Jan 2011 10:07:29 -0600
> Subject: Re: [GMCnet] yamaha inverter generator: how to run inside?
>
>
>

> > I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?
>
>
> Yeah - don't do it. A few people get killed each year running a generator indoors with what they thought was "adequate ventilation". Do you have a propane tank? If not it might work in that space. Otherwise I would make a platform on the rear bumper for the gen.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
I hate it when my phone double posts a topic. I understand the risks with CO which is why I asked this question in the first place. The style of Gen is a hand portable inverter Gen (Yamaha EF2000iS) it appears it would be possible with a sealed exhaust to vent any CO well away from the coach like the Furnace does thus allowing safe indoor operation. Due to the compact size of this unit, placing it in the engine compartment may even be possible which would solve any ventalation issues. This is just a hypothetical on how safe indoor operation might be accomplished...
 
I would say that as leaky as the GMC coaches are,
even putting the genny in the engine compartment
would be seriously tempting fate. I know that I
could certainly smell the gasoline leak in that
engine compartment when I first bought and drove
home "The Money Pit/Pig."

I'm not absolutely positive that elevating the
exhaust outlet above the coach roofline would be
totally safe!

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~


----------------------------------------
> To: gmclist
> From: defconfx
> Date: Tue, 25 Jan 2011 11:17:08 -0600
> Subject: Re: [GMCnet] yamaha inverter generator: how to run inside?
>
>
>
> I hate it when my phone double posts a topic. I understand the risks with CO which is why I asked this question in the first place. The style of Gen is a hand portable inverter Gen (Yamaha EF2000iS) it appears it would be possible with a sealed exhaust to vent any CO well away from the coach like the Furnace does thus allowing safe indoor operation. Due to the compact size of this unit, placing it in the engine compartment may even be possible which would solve any ventalation issues. This is just a hypothetical on how safe indoor operation might be accomplished...
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
Shan,
If you go up a size to the 3000 series you can get a remote start unit
that could be placed on a bumper mount carrier or under a picnic
table. Still very economical/quiet compared to Onan.

Nelson Wright
Orlando FL
78 Royale rear bath

>
>
> I hate it when my phone double posts a topic. I understand the risks
> with CO which is why I asked this question in the first place. The
> style of Gen is a hand portable inverter Gen (Yamaha EF2000iS) it
> appears it would be possible with a sealed exhaust to vent any CO
> well away from the coach like the Furnace does thus allowing safe
> indoor operation. Due to the compact size of this unit, placing it
> in the engine compartment may even be possible which would solve any
> ventalation issues. This is just a hypothetical on how safe indoor
> operation might be accomplished...
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
The reason I wanted the EF2000iS was a great comprimise between power and portability. I plan to take this thing anywhere I Need AC power, not just with the coach. The second reason was price! Kinda hard to beat $899 shipped to my door. Was only 120 more than the EF1000iS but several hundred less than the EF3000. Also its hard to beat the hand portability of 44 lbs. Hell I would curl 45# dumbells when working out so that's nothing! To my knowledge the unit also meets strict CARB refs for emissions, which sounds like it might have a small cat on it, if so CO emissions must be really low. Considering other CO producing items like furnace and stove can be used safely I don't see why this small APU could not be adapted in a like fashion...
 
for your input, my father was also a fireman, he was captain of the treasu=
re island fire dept back in the 80's. soI can definately appreciate the inp=
ut from someone in your field. Basically the desire to run the unit inside =
is more for ease of use, and I know would be somewhat of a challenge but no=
t impossible. first I should state the model, it is a yamaha EF2000iS shown=
here http://www.yamahagenerators.com/yamaha_generator_ef2000is_pr_51.html =
which is a small hand portable gen, it weighs only 44# so I can carry this =
thing around with 1 hand, it generates 1.6kw 2kw surge continuious, and I b=
ought it because its hard to justify running the onan (mine functions perfe=
ctly) for just TV, laptop or nuking a small dinner, the onan is simply over=
kill for these applications, so this small genset should be just the ticket=
. > > It is my understanding that they are insulated inside for noise=
and heat, this would make sense considering the body is plastic and thus c=
ouldnt get too hot or it would melt. what little heat generated by the 76cc=
engine would be a bonus when its cold, so it seems my main technical issue=
would be the venting of the exhaust. Obviously no one wants CO inside, I h=
ada mild case of CO poisoning when I was a teen thanks to a leaky exhaust i=
n a friends old station wagon, and its an experience I dont care to repeat.=
so basically I was looking for any one who has experience with that type o=
f generator, and as to how hot it gets etc. it looks smally enough that wit=
h a little redesigning of the battery area I may be able to fit it in there=
which of course would solve all ventalation issues. but then I though beca=
use it is recoil started it owuld be nice not to have to exi the coach to s=
tart it, so how dificult would it be to run indoors safely, and address the=
technical issues that may be involved... Open the awning, put the =
gen outside. done -- Keith 69 Vette 29 Dodge 75 Royale GMC
 
> I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?


Four died about a month ago, 30 miles from here. Generator in the basement. CO is odorless and a poison. It combines with the red blood cells better than oxygen, so even if you are in oxygen rich air, you die.
--
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
 
Shan,

Your father did a fine job. We're still out here! My coach is parked
on the other side of the fence from the fire station.

DC

--
1977 GMC ex-Palm Beach, 26-3
Treasure Island, CA
KC6VHG, KAG0675 "980"
 
yeah lost him 3 years ago to the big C, just a couple weeks shy of his 52nd. too young to go if you ask me. Is the department still open? I remember that place vaugely from when I was a kid.

As for my gen idea, there has to be a way to make it safe for indoor useage since a lot of other CO producing items like the stove, and furnace as well as fridge in some cases are all used inside with no ill effect. every story I hear about any problems with using a gen indoors has been due to lack of proper venting of exhausts away from the living area. I can wait till the unit arrives so I can inspect its design and test it for CO. the ones I absolutely dont understand is the people who use charcoal grills for heat indoors there really is no way to vent the fumes created from that....

> Shan,
>
> Your father did a fine job. We're still out here! My coach is parked
> on the other side of the fence from the fire station.
>
> DC
>
> --
> 1977 GMC ex-Palm Beach, 26-3
> Treasure Island, CA
> KC6VHG, KAG0675 "980"
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
Thats why, CO is slightly lighter than air, placing it under a living space without a ducted and sealed exhaust is asking for it...

> > I just bought one of these super quiet gens, will run 12 hrs on a gallon of gas. I wanna be able to run it inside. This would especially be useful if it were raining outside. It seems all I would need to do is vent the exhaust to the outside? Any ideas?
>
>
> Four died about a month ago, 30 miles from here. Generator in the basement. CO is odorless and a poison. It combines with the red blood cells better than oxygen, so even if you are in oxygen rich air, you die.