Independent Customer Review
Independent Customer Review
Are your products EPA Certified?
Yes. Selling Non EPA approved product is illegal in the US
and the result can be disastrous to the companies doing it (see
Volkswagen settlement here) and the customer that unwittingly
purchase product that gets recalled.
All of our kits and converted generators have been tested as
new generators or kits to be installed in specific generators
(our EPA manufacturing designation is NEG) and approved by
the EPA for sale as kits and converted generators. The
regulation for small non-road spark-ignition engines and
equipment kits and generators is CFR Title 40, Chapter I,
Subchapter U, Part 1054 found HERE. kits are addressed
specifically in Part 1054.645 found HERE, The testing
required for certification is per Part 1065 “Calculations,
equipment and data” found HERE, and a new mandatory bond
starting at $25,000.00 must be posted by all manufacturers of
generators, kits and accessories intended for modifying any
fuel system in any way. This process is very expensive and
can take up to a year to complete but is legally required for
each generator class. Here are links to our certificates by
engine family: GNEGS.0991US, GNEGS.1961US,
Does Propane and/or Natural Gas still produce deadly ‘CO’
YES. Although propane and natural gas tend to burn cleaner
inside the combustion chamber, they both still produce almost the
same deadly carbon monoxide output as gasoline. Propane and
natural gas generators must never be used inside a home or
business, and must never be used closer than 5 feet from ANY
opening including shut windows (still considered an opening).
They should also never be used under decks or on porches and
most fire marshals in fact recommend never operating a generator
closer than 10’ to your home. Always ask your local inspector or
fire marshal if you are unsure. You should also, by code and for
safety, have a working CO detector in any bedroom adjacent to
where a generator will be running. The bottom line with CO is
that you or your family can quickly get too disoriented to save
you or themselves if you fail to take the necessary precautions
ahead of time.
What’s wrong with “generic” propane kits?
Besides risking any warranty help once the seller is shut down
from being fined up to $37,000 per day per generator by the EPA,
the number ONE call we get is to help diagnose or “tune”
propane kits bought from other companies that were not factory
tuned and can’t get them to run correctly! Basically, you
probably don’t have the correct equipment on hand to do it, it
won’t meet EPA and not doing it correctly could lead to
overheating in the combustion chamber (too lean) or carbon
fouling and sputtering (too rich). Either way, the result is that
you can quickly ruin your very expensive generator by trying to
save money with a lower value kit. We only sell kits and
modified generators with pre-set orifices for properly metering
fuel. They are not adjustable, are designed for optimum
performance and to meet EPA emissions levels. We test every
generator before shipment over the entire load range, including
ECO mode. This means we have to limit our product offering to
only those generators we have engineered systems for, but the
benefit to you is that you know your system is fully approved and
will work right out-of-the-box.
Gasoline ages in as little as 6 months, and is virtually unusable
(varnish!) after just a few years, whereas propane can last
Ethanol in gasoline absorbs water and causes deterioration of
nonmetallic parts like gaskets. If you live in Missouri or
Montana you can buy 93 Octane ethanol free gasoline.
Delicate components inside your engine’s needle valves and
ports inside the carburetor get gummed up quickly as the
gasoline ages and routinely don’t work if not cleaned annually.
Gasoline is dangerous to pour, making it very dangerous to re-
fuel a hot engine.
Gasoline tanks typically only hold 4-5 hours of fuel, but a single
20-20lb propane tank can run a lightly-loaded EU2000 for an
entire 24hrs - that’s a once a day refueling vs getting up in the
middle of the night and going outside in 10deg. to keep the
Your Oil will last longer with propane because it burns cleaner
and pollutes the oil less from combustion gas blow-by.
Propane is considered much safer to store and transport.
Propane tanks can be exchanged during outages, whereas
gasoline requires power to pump.
Most people already have a barbecue grill with at least one
handy tank ready.
What size propane tank should I use?
HERE is a link to our propane tech note on tank sizing. The two
main factors that effect propane tank size are temperature and
load. In general, to provide enough propane vapor to run your
generator at or near freezing temperatures (or above), we
recommend a minimum of a 20lb tank for up to 2000Watts, a
30lb pound tank for up to 3000Watt and a minimum of a 60lb
tank (or two 30lb tanks together) for operation up to 7000Watts.
For operation at or near zero, we recommend a minimum of a
30lb tank for up to 2000Watts, a 40lb tank for up to 3000Watts
and 80-100lbs for up to 7000Watts. Please note that these
numbers are based on peak usage and not average. For instance,
the Honda EU2000i is rated at 1600Watts for long-term use and
the Honda EU7000is is rated at 5500Watts average. When in
doubt, go up in tank size, double up, or in extreme conditions,
use a tank warmer.
Will propane work in cold weather?
Yes if you size your tank correctly for your load. You can also
simply position your tank a foot away from the output in extreme
cold conditions, where the extra heat from the exhaust will
provide energy for faster internal vaporization. CAUTION
should be used here, though, as you don’t want the tank right up
again the exhaust.
Will our generators work on Natural Gas?
Yes some of our models come with a changeable orifice to go
between Natural gas and Propane (both operate at max 1/2psi or
13”w.c.). However, some states require all gas appliances, indoor
AND outdoor to have a UL or equivalent listing (such as
Massachusetts) before it can be connected to a home’s natural gas
supply. In general, most states follow NFPA 54, which is silent
on this for outdoor portable appliances such as heat lamps and
barbecue grills but if in question always check with your town’s
local inspector in charge.
What happens if my tank runs out of propane while I’m at
Not a problem. Just simply hook up a new tank when you get
home and start back up. It’s as simple as changing your BBQ
grill tank. Just remember to turn off the valve on the empty tank.
What maintenance should I do on my propane or natural gas
Like any propane device, you should periodically check all
connections on the hose for leaks using soapy water (not a
match!), and you should keep the dust caps on the quick-connect
fittings at all time when not in use. There is a second regulator
inside the generator, that if dirt and debris gets inside, may not
function correctly and could leak if you leave your gas tank on.
It will then need servicing by us or a qualified propane mechanic
/ gas fitter. In addition, we recommend you follow the OEM
manual for generator maintenance.
How far should I place any generator from my house when
THIS IS IMPORTANT!! The National Fire Code requires at
least 5 feet clearance from any windows and doors or any other
“openings” or any outside wall that has a fire rating of less than 1
hour (non-brick for instance), but almost all fire officials strongly
suggest 10’ (which is why we put on a 10’ line cord). This is
because all generators produce deadly oderless carbon monoxide
CO that can penetrate these openings without you knowing (read
about early CO poisoning signs on web). You should also
NEVER operate a generator in a garage or confined space. In
addition, it can be against state and federal codes to enclose
portable generators. You should also always install and maintain
a CO detector in the closest bedroom to where the generator will
be running. Always consult with your local inspector or fire
department for up to date rules and regulations to keep you safe.
What oil and spark plug should I use?
We recommend 10W-30 (5W-30 if temp goes below 0 deg F)
fully synthetic motor oil for the best lubricate the valve stems and
other engine parts over regular oil as propane burns slightly
hotter at full peak load We also recommend using the original
Honda factory spark plug gap of 0.028” for overall best
performance and power. Here is our latest recommendation for
spark plugs as of Q1 2021 for each unit:
Do the latest Honda EU2200i and EU3000is generators have
an hour meter?
Yes, on late model “A” 2200’s and newer EU3000is flash they
green output LED at startup to show status as follows:
Less than 100 hours 0 blinks after start
100 to 200 hours 1 blink after start
200 to 300 hours 2 blinks after start
300 to 400 hours 3 blinks after start
400 to 500 hours 4 blinks after start
Over 500 hours 5 blinks after start
Can I run two EU2200i’s at the same time from my camper’s
1/4” propane quick disconnect?
Yes, if the connector is only a few feet from the tank and if you
are just using the two to start a 12,000 or 14,000 BTU A/C unit
that normally run at approximately 1600 Watts once started. No,
if you want to run both generators in total above this power for
any length of time or have your 1/4” quick disconnect more than
a few feet away. In this case you should have your line upgraded
to 3/8” i.d. with a 3/8” quick disconnect installed and or use our
12’ x ⅜” dual output hose with our ¼” to ⅜” adapter.
Do I need to ‘break in’ my generator on gasoline first?
No. We are asked this quite often and believe it’s meant to get
customers to test their base generator first for potential generator
warranty claims against the original manufacturer before
installing non EPA certified conversion kits that were not
specifically designed for that engine.
Test cell photo of Genconnex
natural gas modified EU7000is undergoing
Please note we are not a Honda dealer.
Honda is a registered trademark of Honda Motor Co.