Four Wildfire Myths I Hear Constantly in West Hills (And What's True Instead)
I get some version of the same four sentences on almost every call with a new homeowner. They're not dumb assumptions — they're the kind of thing that sounds reasonable until you've actually watched a wind-driven fire move. After the 2018 Woolsey Fire burned through the hills near my home in West Hills, I went through CERT training and spent the years since building wildfire defense equipment for homeowners. In that time I've heard the same handful of myths often enough that I think they're worth taking apart one at a time.
Myth: "If I Can't See Flames, I've Still Got Time"
This is the most dangerous one on the list, and it's the one 42 years in manufacturing taught me to be suspicious of — the thing you can measure is rarely the thing that actually gets you. Embers, not the visible flame front, cause up to 90 percent of home ignitions during a wildfire, according to the Insurance Institute for Business & Home Safety's analysis of recent California fire damage. And embers don't stay near the fire — airborne burning debris has been documented traveling a mile or more ahead of the main front. That means a property with zero visible fire anywhere nearby can still be the one that ignites first, from a single ember landing in the wrong spot. "I can't see smoke yet" is not the same as "I have time."
Myth: "A Garden Hose Is Basically the Same as Real Fire Equipment"
A garden hose is better than nothing, and I'd never tell someone to put it away. But it was built to water a flower bed, not to knock down a spot fire on a roofline or hold a defensive line in wind. The things that actually matter in that moment — a hose rated for the pressure, a nozzle that can switch between a tight knock-down stream and a wider fog pattern, a connection that doesn't blow apart under load — are specifically what separates consumer garden equipment from wildfire-rated gear. The gap isn't really about the hose itself. It's about whether the nozzle on the end of it gives you control when you need it most, instead of one fixed, weak stream.
Myth: "My Defensible Space Means My House Is Covered"
Clearing the first five feet around your home — the "Zone 0" standard that's still moving through California's rulemaking process — is genuinely the highest-leverage thing most homeowners can do, and I've written about exactly what it requires. But defensible space is prevention. It lowers the odds that an ember finds something to ignite. It does not put a fire out once something does catch, and on a bad enough day with enough wind, even a textbook-clean five feet can still take an ember through a gap you didn't think to check — a gate, an open vent, a pile of leaves that blew in that morning. Defensible space and equipment aren't competing strategies. One reduces how often you need the other.
Myth: "Wildfires Are a Wilderness Problem, Not a Neighborhood Problem"
Woolsey didn't stay in the wilderness. It moved through hillside neighborhoods, cul-de-sacs, and properties that looked nothing like a forest, which is exactly how most destructive California wildfires in the last decade have behaved. If you live in what's called the wildland-urban interface — and large parts of West Hills, the Santa Monica Mountains, and similar communities across the state are squarely in it — the line between "wilderness" and "my street" is thinner than it looks on a map. You don't need to live at the end of a dirt road to be in a fire's path.
What You Need to Know
- Embers cause the majority of home ignitions — up to 90 percent, per IBHS — and can travel a mile or more ahead of visible flame. Not seeing fire nearby doesn't mean you're out of range.
- A garden hose is a start, not a plan. The difference that matters is control — a proper nozzle and a hose rated for the job, not just more water.
- Defensible space (Zone 0) reduces ignition risk — it doesn't eliminate it. Treat it as prevention, and keep a way to stop a small fire fast as the backup.
- The WUI includes a lot more of California than "the mountains." If your neighborhood backs up to open hillside or wildland, you're in it, whether it feels that way on a calm day or not.
- None of this replaces an evacuation order. Equipment and defensible space are for the window of time when staying is genuinely safe — if authorities tell you to go, you go.
- Check your local jurisdiction's specific rules before you plan around any defensible space timeline — Zone 0 is still finalizing at the state level and several cities already have their own ordinances in force.
None of these myths are stupid to believe — they're intuitive, right up until you've seen how a real wind-driven fire actually behaves. Knowing the gap between "a hose" and "the right nozzle on the right hose" is a small thing to learn before the smoke shows up, and a hard thing to learn in the middle of it.
Sherwin Ross is the founder of Ace Fire Defense, based in West Hills, CA. After the 2018 Woolsey Fire, he became CERT-trained and started building wildfire defense equipment for homeowners.