Hybrid Series Portable Generator - Gas/Propane - 3650 W

The Firman H03652 generator features 4550 starting Watts and 3650 running watts. Power is supplied by a Max Pro Series 208 cc engine which runs cool and efficient thanks to its Phoenix Fat Head Block. The Whisper Series muffler keeps the H03652 running at a quiet 67 decibels, well below the standards set by the National Parks Service, and the spark arrester has been approved by the USDA Forest Service. It runs on gasoline or propane fuel for increased flexibility while out on the road or during an emergency. The Firman Volt Lock automatic voltage regulator ensures clean, consistent power output from the Firman Power Stream alternator. The 8” never-flat wheels and the u-shaped padded handle with ergonomic grip make it an easily portable device. Pertinent information is at your fingertips with the 3-in-1 data minder measuring volts, hertz, and hours. Everything you need comes standard in the box including: oil, funnel, owner's manual, spark plug wrench, and two wrenches to remove protective shipping brackets.

Length :25.7" (65.28 cm)
Standards :National Parks Service, USDA Forest Service
Other :Fuel gauge; Data-Minder monitor: hours, voltage, frequency
Packaging :28.5" x 21.1" x 20.7"
Warranty :3-year limited warranty (90 days)
Type :Portable generator
Style :Hybrid
Model :H03652
Component :Steel
Color :Black and yellow
Utilization :Emergency situations, camping, VR
Height :21.61" (54.89 cm)
Width :21.08" (53.54 cm)
Amperage :(2x) 20 A, (2x) 30 A
Displacement :208 cc
Sound Level :67 db
Voltage :120 V
Wattage :Gas: 3650 W, LP: 3300 W
Tank Capacity :5 gal (19 L)
Operating Time :14 hours
Hose :Propane hose: 5.5' (1.68 m)
Electrical Outlet :(2) 20 A Duplex, (1) 30 A Twistlock, (1) 30 A VR
Wheels :8" (20.32 cm)
Fuel :Liquid propane/gas
Motor :Max Pro Series 208 cc
Handle :Foldable 12" U-shaped handle
Included :Engine oil bottle, oil funnel, tool kit, LPG regulator, automatic voltage regulator

Can this generator be connected & run on household natural gas & are correct couplers available ? thank you

Asked by: DLPoulin
Nothing in the manual says natural gas (methane) is acceptable. To convert to natural gas would probably require a different jet for a different fuel/air mix. It comes with a hose for propane tanks only.
Answered by: Waldo222
Date published: 2019-11-04

Can the unit convert its orfice to natural gas?

Asked by: Mr Apple
Hi We don't offer a conversion kit for converting propane to natural gas. We have several customers who have purchased after market conversion kits. We have not done any testing on natural gas for this model we are not sure what the specs would be. Your Firman Friends
Answered by: Firman Power
Date published: 2019-04-20

The generator runs on gas no problem but when I tried to switch to propane, the generator doesn't even wanna start or anything, any tips on how to get it running with propane??? 

Asked by: Jackson17
Hi Jackson, Please call our toll free number at 1-844-347-6261 and speak to one of our highly skilled technicians. FIRMAN Friends
Answered by: Firman Power
Date published: 2019-03-01

How many btu ?

Asked by: Maynebonnie
Hi, 150,000 BTUs per hour of propane gas. Hope this helps. Your FIRMAN Friends
Answered by: Firman Power
Date published: 2019-02-28

I like the dual fuel source feature. How clean is the electricity? Does this produce Sign Wave current as newer furnaces and water heaters require cleaner power? Will this generator produce that or is an inverter the better option? Thanks

Asked by: CJH4
HI, The THD on the unit is 25% we many customers in Canada that use this model to run there furnaces and water heaters. The THD on our inverters is 3%. Hope this helps. Your FIRMAN Friends
Answered by: Firman Power
Date published: 2018-12-05

Considering buying this unit for my father in law who is just turning 80. Im worried about access during a storm. Can this unit be stored outside all year round? We live in eastern Ontario, so cold in winter and lots of snow. Should we cover it? Thank

Asked by: Steve in Ottawa
Yes, The generator can stay outdoors.It would be best to keep it covered. I recommend upgrading that model to an electric/recoil start model H03561. Hope this helps. Your FIRMAN Friends
Answered by: Firman Power
Date published: 2019-01-29

How much fuel and propane does tanks hold  How long is running time for full propane tank and full gas tank

Asked by: Ray Brisson
Hi Ray, Model H03652 has a 5 gallon gasoline tank which will run 12-14 hours at 50% load. The propane run time depends on the size tank you have. Most customers use a typical 20LPG tank which you will get approx: 4-6 hours run time at 50% load. Hope this Helps. Your FIRMAN Friends
Answered by: Firman Power
Date published: 2018-10-09

Will this unit draw fuel from a reserve tank of gasoline? As in, if I connect a 10gal tank to the resevoir? Is this possible?

Asked by: Andred123
Hi Andred, We do not recommend connecting to external gasoline fuel tanks, due to safety and environmental concerns. FIRMAN Friends
Answered by: Firman Power
Date published: 2018-09-26
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Hybrid Series Portable Generator - Gas/Propane - 3650 W is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from No dissappintment I unpacked it and followed instructions. Worked like a charm on propane my fuel of choice. Sleep easy knowing it's going to function well when I need it.
Date published: 2019-08-30
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