Safety

HHO Safety

HHO (oxyhydrogen, hydroxy) is a fantastic gas but it can be dangerous if not handled properly. Some guidelines for your experiment:

• Always keep an eye on your setup, never leave it unattended.
• Electrolite container should always contain some liquid.
• Monitor the cells temperature. Ideal temperature is around 60 degrees Celsius.
• HHO is non-toxic and completely harmless in small concentration (like if you produce 1LPM) but still use in well ventilated area only.
• Make sure the gas can always flow freely through your system (home made arrestors may clog - check, refurbish them regularly - as per your arrestor requires).
• Use a gas leak detector spray and regularly check your connections.
• Never attempt to store HHO. It can selfignite at low pressure. How much “low” is I don’t know exactly but some commercial units have perssure bar on them that run up to 20PSI or 1.4Bar. A usual DIY drycell setup works at 0 PSI. When the gas can flow freely there is no pressure and depending on LPM you can still light several torches.
• You might want to use a perssure meter (0-0.6mbar).
• Always use at least 2 flaschback arrestors and one should be an industrial (not home built) one. Home built ones can clog after a few flashbacks. If you have a home made arrestor, regularly replace the stainless wool inside.
• Do not put a MIG tip on any flaschback arrestors (not even industrial) as per seen on youtube because they can overheat, the inside steel wool can melt and your bubbler might explode. Such torches will become hot to the touch after minutes.
• If you want flame buy a propper HHO torch.
• Always use thin tubes, hoses. A 6mm hose is enough to transport a lot of LPM. The thicker your hose the bigger your flashbacks which can damage soldering on your home made arrestors thus your flashback arrestor might fall to pieces.
• You should have only one (electric) switch to turn your system off.
• Turn off your system when not in use.