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OS:HHOHHU -- Hydroxy Home Heating Unit

Lasted edited by Andrew Munsey, updated on June 15, 2016 at 12:55 am.

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Page first featured March 7, 2009

Image:HHOHHU300x300 byKevn.jpg

HHOHHU has developed a self-contained home heating unit that utilizes water as its fuel. Electrolysis is used to split the water molecule into hydrogen and oxygen, which is burned to generate the heat. They say their first version of the HHOHHU draws ~450 Watts and can heat 1,000 square feet.

They sell plans for the system to enable people to build one of these from parts available from the local hardware store.

A patent was filed in January 2009, just prior to making the plans available. The company is quasi open sourcing the design for further development. Devices can be made for personal use, but commercial development needs to be licensed with the company. A kit is coming soon which will result in a unit 20x20x8 inches that will heat 1,000 square feet. Meanwhile, they also have some of they key components, such as the two cells involved, available for purpose now. They are also working on gearing up to mass produce these. They are also working on a hybrid furnace conversion system that could run along side existing furnaces to augment them.

They say they have sold hundreds of copies of the plans, and have not had any refund requests with several known successful replications personally witnessed. While their plans describe how to make every component, they do make some of the more difficult components available for sale, such as the two cells, the case, the flash arrester, and the heat sinks.

The savings on energy is supposedly enough to pay for the materials within as little as three months. Their electrolysis system draws from the best hydroxy technology they've seen, each cell producing 2 liters per minute, at 12.5 amps and 12 volts. The key to their system is the heat exchanger that extracts the heat from the very unusual flame that has been shown to be able to melt tungstun in just a few seconds. They also put to use the heat generated from the power controller, the electrolysis, and even the fan.

As of Feb. 21, 2009, is in discussion with HHOHHU to provide PESWiki as the preferred destination for coordinating the open sourcing portion of this technology.

This is a publicly editable site. Feel free to join in growing the report of this technology, its replication and development.


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Official Website

Press Release


Image:FreeEnergyNowRadioIcon95x95 byKevn.gif

Download (12 Mb, mp3) - On Feb. 23, 2009, Congress:Founder:Sterling D. Allan conducted a one-hour, live interview with Randy Bunn and Mark Akkerman of HHOHHU as part of the Free Energy Now radio series.

Mark Akkerman Interview with J A Robey - Mark Akkerman discusses how the technology was developed. (''Water Fuel Museum Blogtalk Radio" Feb. 4, 2009)

Randy Bunn Interview


Oct. 11, 2009

Jim wrote:

I stopped working on my system. The HHOHHU website started referring people to use pre manufactured components from other sellers. They pretty much just sell a pre-built home heating unit (Genesis I) that cost about $3000 which only has a few hundred in parts. There are many new cell designs that are more efficient. I am working on a cell that is H2 only. It can then be adapted for use by most appliances with very little modification.

How it Works

It is an hho torch running off two 4x4 9 plate cells. The torch is heating a heat exchanger made up of 25 copper 1/2" tubes and some fans to push the air. Power comes from a 700w computer power supply. The electrolyte is KOH. Has a standard bubbler and flashback arrestor.

HHOHHU plans walk you through each step of the process from planning the project, gathering materials, building an HHO converter and a heat exchanger, to putting it together. Their hope is that anyone can now build their own home heating unit.


Image:Hhohhu hyrogen fuel intake 200.jpg
Image:Hhohhu hydrogen burner 200.jpg
Image:Hhohhu home heating unit 200.jpg
Image:Hhohhu inside heater 200.jpg



(1.13 Minutes)

HHO Home Heating Unit ABC 6 News Heat your home with ordinary! Earth's most abundant energy source can be utilized to heat your home in the safest, most efficient way possible. (YouTube February 4, 2009)

- - - -


(2 Minutes)

hhohhu Fox 12 News Fox 12 news coverage of HHOHHU technology. The first HHO Home Heating Unit. (YouTube January 13, 2009)

- - - -


(2.34 Minutes)

HHO Home Heating Unit Image heating your home with water! At you can now view comprehensive plans, schematics, and detailed instructional videos that will enable you to build your own HHO Home Heating Unit. (YouTube December 23, 2008)

- - - -

Press Video

Mark Akkerman Interview | MP3


Informational Library: Step-by-step plans, schematics and video. All the information you need. - $40 USD. Plans and schematics only: $30 USD.

The parts for the unit would cost around $600 retail, but one person has been able to source them for just $200.

Buy here.


Inexpensive, energy efficient.

Adds humidity to the air.

Runs continuously.


HHOHHU sents unsolicited commerical email (aka spam) to advertise its products. The email begins with the statement "This message is meant to inform not annoy, if you would like to be removed from all further emails please select the "click here"at the bottom of the page."

Their advertising (December 2009) claims "This revolutionary system can produce enough heat for a 1500 square foot home or office" and "uses as little as 330 watts to operate." An on-line furnace sizing calculator determines that a 53,000 BTU furnace is required for a 1,500 square foot house in Boise, Idaho (home of HHOHHU). 53,000 BTU is about 15,000 watts, far, far greater than the 330 watt input to the device.

Measuring energy input and output of this device is quite easy to do. It is surprising that so much investment can be made in marketing the device, yet no investment has been made in a simple test.


Home and small business heating.


List here. (This is a publicly editable site.)

pmazz850 tests the heat exchanger

On February 09, 2009, 02:12:33 AM, pmazz850 from the forum wrote:

I just experimented with the copper tube heat exchanger and my little HHO torch and it does produce a fair amount of heat. I got the tubes to 160 degrees in about 20-30 minutes with a 1 inch flame. and when you lightly blow through the tubes it puts heat out the back of the pipes. I like the heat exchanger. Simple yet effective!

woodpecker tests the heat exchanger

On February 09, 2009, 02:12:33 AM, woodpecker from the forum wrote:

Image:HHOHHU woodpecker heater1 250.jpg

I have made some tests with the gas, heating a room:

roomsize: 15 Cubicm., Starttemp. 11 degree celsius

I used 14 coppertubes. Tempture was raised after 30 min at 14 degr.

total Watt used 330

For camparison, i made the same test once more with a electric heater with 450 Watt:

Starttem. 11 degree, after 30 min. Tempt. was raised to 13,5 degree.

So the gas was heating with less Watt a little bit more.

The coppertubes get quite hot, but after installing a little fan, I could touch them with bare hands.

Independent Testing



Claimed an application was filed January 2008 (or January 2009 in another account).

The U.S. Patent and Trademark Office has a patent application search engine at

Searching on Inventor Name is "Bunn" or "Akkerman" and Inventor State is "ID" (Idaho) yields no results as of December 11, 2009.

Similarly, searching the database for issued patents at also yields no results.


Company: HHOHHU, LLC
Inventor: Randy Bunn with Mark Akkerman

Randy Bunn is the primary inventor, with input from Mark Akkerman.

Bunn has some mechanical background, but his professional experience has been primarily in sales.

In the Summer of 2008, when gasoline prices got so high, he began exploring the various claims of increasing mileage using on-board electrolysis to generate hydroxy gas to inject into the air intake, improving mileage. He and Akkerman wondered if mayby this approach couldn't be used for home heating, so they began researching the best technologies for 2-3 months. Hundreds of people have been working on this, but have not been able to come up with a good way to turn the hydroxy flame into heat.

Bunn believes he has figured that out and now he is ready to share the technology with the world.

He says many people -- primarily skeptics -- come by to witness the technology for themselves, and they end up turning from skeptics to proponents.


In the News

Image:Hydrogen home heater 95x95.jpg

Directory:Home Generation:Space Heater / Directory:Hydrogen >Hydrogen Home Heating Unit Uses Water for Fuel' - Mark Akkerman and Randy Bunn announce the invention of a self contained home heating unit along with a hybrid furnace conversion that utilizes water as its fuel. (Video) (HHHOHHU Feb 12, 2009) (Thanks Congress:Member:Gary Vesperman)

Image:Hhohhu inside heater 95x95.jpg

Boise Green Living: Water as Fuel - Mark Akkerman kneels over the machine he helped create. It looks like a normal space heater. But if you look inside you'll see it's different. That's all thanks to its unique fuel source. "We have a heating unit that operates on water," says Akkerman. "It uses water as fuel." (KIVI TV Feb. 5, 2009)

Image:Hhohhu hydrogenheater fox 12 95x95.jpg

Hydrogen to Heat your House - This unit is made of common parts which can be found in most hardware stores. This hydrogen heating unit is environmentally friendly emitting no carbon, and no green house gases, while being safe to operate and easy to build. (KeeleyNet Feb. 4, 2009)


Talk:Directory:HHO Home Heating Unit - tied to this PESWiki page

Talk:OS:HHOHHU -- Hydroxy Home Heating Unit - established on Feb. 22, 2009 for this project HHO heater. Is it overunity ? - ( Thread commenced Feb 6, 2009)

Water-Fuelled Home Heating Unit Now Available - and Open-Sourced?? (Above Top Secret Forum Feb. 7, 2009)

Related Technologies

Image:GreenHomeHeater95x95 byKevn.jpg
Latest: Directory:Water as Fuel / Directory:Electrolysis >Directory: Sovereign Energy Solutions: The Green Home Heater - Plans are available for a home heating unit that utilizes water as its fuel. Electrolysis is used to split the water molecule into hydrogen and oxygen (hydroxy gas), which is burned to generate the heat. ROI is estimated at 3-5 months from energy savings. (PESWiki Feb. 28, 2009)


Thanks Congress:Member:Gary Vesperman for bringing this to our attention. Congress:Member:Robert L. Pritchett built the first draft of this page.



229 So Phillippi, Suite 2111

Boise, Idaho 83703

Phone: (208) 703-4614

FAX: (208) 361-7827

Mark Akkerman (208) 703-4614

E-Mail: []

Randy Bunn (208) 697-1758

E-Mail: []

See also


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Directory:Hydrogen Production

Directory:Hydrogen from Water

Directory:Solar Hydrogen

Directory:Hydrogen Storage



Directory:Water as Fuel

Directory:Fuel Efficiency Hydrogen Injection

Directory:Hydroxy or HHO Injection Systems

Directory:HHOi under Air Pressure to the Fuel Rail to Provide Petrol Substitute

Directory:Running Vehicles on Water

OS:Water Fuel Cell

Directory:Alternative Fuels

There was an error working with the wiki: Code[2] | PowerPedia:Hydrogen car

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