Author: Dunman Electric LLC

Texas P³: Surge Protection & Generators

⚡ POWER + PROTECT PROMO — Through July 2025⚡

The Texas power grid isn’t just unreliable — it’s become a liability. Anyone who lived through the 2021 Winter Storm Uri, the rolling blackouts of February 2022, or last year’s June ERCOT emergency notices knows this firsthand. The infrastructure simply can’t handle demand spikes or severe weather. That means high winds, lightning, power surges, and unexpected outages — year after year.

So let’s talk about what actually keeps your home running when the grid gives out:
Automatic transfer, manual transfer, and portable generators — and the one thing nearly everyone forgets: whole-home surge protection.

Manual Transfer Generators

What they are:
A hardwired backup generator that requires you to start it manually and flip a transfer switch to power certain parts of your home.

How it works:
These run on propane, diesel, gasoline (in very specific installs), or natural gas and are installed outside the home. When the utility power fails, you physically start the generator and activate the manual transfer switch, which reroutes power to a secondary panel. Only the circuits wired to that panel will come online — usually essentials like lights, fridge, freezer, and maybe a few outlets or your HVAC (if it’s sized right).

Best for:
Homeowners who want dependable backup without the higher cost of an automatic system, and who don’t mind going outside when the weather gets bad.

Automatic Standby Generators

What they are:
A fully automated backup system that detects outages and powers your home within seconds — even if you’re not there.

How it works:
The generator is connected to your natural gas or propane line and wired into your main service panel. When the grid fails, the automatic transfer switch (ATS) kicks in and reroutes your entire home’s power through the generator. When power is restored, it flips back to the utility feed, all without you lifting a finger.

Best for:
Homeowners who want uninterrupted power during storms or blackouts — especially those with freezers, medical equipment, sensitive electronics, or small children. These are also ideal for work-from-home setups where downtime costs money.

Portable Generators with Quick-Connect Kits

What they are:
Small gas-powered generators that you can roll out and connect to your home with a properly installed inlet box and interlock kit.

How it works:
You manually start the generator and plug it into a designated outdoor inlet. From there, you flip specific breakers to transfer power to essential circuits. It’s not a whole-home solution, but it’s enough to run the basics if properly installed.

⚠️ Critical Safety Warning:⚠️

A generator should only be connected through a dedicated outdoor inlet box, with a panel interlock or manual transfer switch installed by a licensed, bonded, and insured electrical contractor. This ensures your main breaker is disabled while the generator is live, preventing dangerous backfeed into the grid. Installing any generator power source without an appropriate interlock kit is illegal, violates the National Electrical Code, and can energize utility lines, potentially killing linemen working to restore power.

Best for:
Budget-conscious households that still want to avoid being completely in the dark during a storm.

Why Surge Protection Matters More Than You Think

Backup power is only half the equation. What most people don’t realize is that power restoration events, lightning strikes, and utility grid fluctuations can fry electronics long before the lights go out.

What it is:
A whole-home surge protector is a panel-mounted device that intercepts high-voltage spikes before they hit your circuits. These surges can be caused by lightning, utility switching, or damaged transmission lines.

What it protects:
Everything downstream — including your refrigerator, HVAC, smart TVs, computers, EV chargers, solar inverters, pool equipment, and security systems. If it’s plugged in, it’s at risk.

Fact:
Surge damage is not covered by most warranties. And those $15 power strips? They don’t cut it. You need layered defense:

Whole-home surge protection at the panel
Secondary protection at the outlet (plug-in strips)

If you’ve ever:

Replaced an AC board after a storm
Lost a smart TV or modem randomly
Had to reset half your house after a flicker

…you probably needed this yesterday.

How to Decide

We install manual, automatic, and portable quick-connect generator systems. We also retrofit homes for surge protection, check panels for age and load issues, and walk homeowners through real risk scenarios — not hypotheticals.

If you want:

No effort, full home power → Go automatic + surge
More control, lower cost → Manual + surge
Bare-minimum prep → Portable + proper connect + surge

⚡ POWER + PROTECT PROMO — Through July 2025⚡

Right now, we’re offering a bundled, Texas-sized storm special:

$75–$500 off generator installation, depending on the type of system you choose (manual, automatic, or portable quick-connect)

plus

Whole-home surge protection installation for just $222 (normally $349)

That’s full protection — backup power + surge defense — in one package, installed by licensed professionals who do it right the first time.

Questions? Ready for a site walk?
We’re licensed, local, and don’t push what you don’t need. We’ll tell you if your panel’s fine, if your wiring is outdated, or if there are any code-compliance updates you need to know about! No guesswork. No scare tactics. Just real answers.

Call (512)280-8847 or reach out to us through our Contact Us page to schedule today and receive your free estimate and POWER + PROTECT Texas Storm Bundle!

Vocabulary Glossary

Term	Definition
Generator	A machine that converts fuel into electrical power.
Manual Transfer Switch	A switch you operate by hand to shift power from the grid to your generator.
Automatic Transfer Switch (ATS)	A smart switch that detects outages and switches power automatically.
Portable Generator	A movable, gas-powered generator used for temporary backup power.
Quick-Connect Kit	A code-compliant inlet and breaker system to safely connect a portable generator.
Whole-Home Surge Protector	A panel-mounted device that blocks dangerous voltage spikes before they reach appliances.
Voltage Surge	A spike in electrical voltage that can damage or destroy electronics.
Backfeeding	When power flows the improper way, upstream, to the power company as opposed to downstream to your home.
Grid	The larger system of power lines and generation plants that provide your electricity.

(512)280-8847 . becky@dunmanelectric.com . contact us

June 24, 2025

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June 22, 2025
Hidden Fire Hazards in Austin Homes

What We Keep Finding Behind the Walls

by Craig Dunman, Master Electrician

Austin homes are a mixed bag. You’ve got 1950s ranchers, 1980s flips, 2000s builder-grade boxes, and everything in between — all wired to whatever code was current at the time. Problem is, most of those systems were never upgraded. And when the wiring hasn’t been touched in decades, there’s often a fire hazard just waiting to surface.

Here’s what we’re still pulling out of homes all over Austin and the surrounding area — and why it matters.

Federal Pacific Panels (FPE)

If your home still has a Federal Pacific panel — or anything labeled “Stab-Lok” — stop waiting. These breakers are known to fail under overload. When that happens, instead of tripping like they’re supposed to, they stay live and let wires overheat. Plenty of house fires across the country have started this way, and Austin is no exception.

They haven’t passed UL listing in years, and they’re not compliant with modern standards under NEC 240.60. These panels are NOT fixable. They ARE dangerous. Replacement is necessary to ensure your safety.

Zinsco / Sylvania Panels

Zinsco panels were common through the ’60s and ’70s. We still find them in older areas of Austin.

The biggest issue? The breakers can fuse to the bus bar, so when there’s a short or fault, the panel doesn’t cut power. That means your wiring can overheat, arc, and catch fire — with no breaker ever flipping. Always remember “Arcs make sparks and sparks make fire.”

If your panel says “Zinsco” or “Sylvania,” have it replaced. These aren’t up to current safety expectations and can’t be trusted.

Aluminum Wiring (1965–1973)

If your house was built between 1965 and 1973 and hasn’t been rewired, you probably have aluminum branch circuits. These expand and contract far more than copper wiring when heated leading to loose connections over time. Loose connections lead to arcing. Arcing causes fires. Remember what we said above? “Arcs make sparks and sparks make…fire.”

Modern code (NEC 110.14) requires proper aluminum-rated connectors and antioxidant paste. If you’ve got aluminum and it’s untouched, it’s not code-compliant and not safe.

Overloaded Circuits

You’d be shocked how many Texas homes are running modern setups — think deep freezers, gaming PCs, tankless water heaters — on circuits designed for a rotary phone and a lightbulb.

We routinely find 15-amp circuits carrying 25 amps of load, especially in garages, kitchens, and add-on spaces like enclosed porches or sheds. When breakers trip repeatedly, or you have warm outlets or flickering lights, that’s not “annoying.” That’s your system saying, I can’t carry this safely.

Under NEC 210.11, branch circuits must be sized and distributed appropriately. If you’ve added square footage, appliances, or even a hot tub without balancing your load? You’re out of compliance — and at risk.

Unlicensed Handyman Work (and DIY Jobs)

We don’t sugarcoat this. If you’re not licensed in Texas, you should not be touching electrical systems. That includes handymen, roofers, contractors, and homeowners. Watching YouTube or “doing it before” does not qualify you.

In Texas, electrical work without a license is illegal for a reason. It’s not about gatekeeping — it’s about protecting lives. Handymen doing unpermitted electrical work are not just breaking the law — they’re putting your family and your home at serious risk.

Cloth or Rubber-Insulated Wiring

Homes from the 1940s–60s — especially in Central Austin and older pockets of Georgetown — may still have original cloth-wrapped or early plastic-sheathed cable. This stuff deteriorates inside the walls, sometimes flaking apart the second it’s touched.

No grounding. No modern insulation. Just dry, brittle sheathing around live wires.

This isn’t “keep an eye on it” territory — it’s “replace this now” territory.

Final Word: Don’t Roll the Dice on Fire

You won’t always see the warning signs. Fires from electrical faults start behind your walls — fast, silent, and deadly. A panel that “still works” or a house that “hasn’t had problems” doesn’t mean it’s safe. It just means you’ve been lucky.

If you’re not sure what panel you have…
If you’ve got aluminum wiring and no paperwork saying it’s been remediated…
If your breakers trip every other day or someone unlicensed did your electrical…

Book a licensed inspection.
It’s not overkill. It’s common sense.

Call us today or reach out through our contact form to schedule!

(512)280-8847 . becky@dunmanelectric.com . contact us

June 21, 2025
Get to Know Our Improved Site and Services
We’re excited to share that our website has officially been updated! Whether you’re here from our newsletter or just browsing, here’s what’s new — and how it makes working with us easier.

Here’s What You’ll Find:
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  Whether you’re looking to schedule work, ask a question, or learn something new, the information is easy to find and quick to access.
- DIY Resource Section
  We’ve added a growing library of safe, simple electrical tips for homeowners. From labeling your breaker box to installing battery-powered smoke alarms — if you can legally do it without a license, we’ll walk you through it. Clear steps. No overcomplication. Check out our Toolbox today to get started!
- Kids’ Corner
  Teaching safety starts early. We’ve created a dedicated section just for kids with activity pages and STEM projects to help them learn about electricity safely and hands-on!
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June 19, 2025
Replacing Outlet and Switch Covers
by Craig Dunman, Master Electrician

Swapping out your outlet and light switch covers is one of the simplest ways to clean up a space. If the old ones are cracked, stained, or painted over from a rushed remodel or “landlord special,” replacing them makes an immediate difference. It’s a quick project — no special tools, no license required. Just grab a screwdriver, press play on your favorite podcast, and set aside a few minutes per room. You’ll be surprised how much fresher everything looks once those old plates are gone.

Tools needed:
- Flathead Screwdriver
- Optional: Voltage Tester
Is this safe to do?

Yes! As long as you’re working with just the cover plate, not the outlet or switch itself, this is entirely safe for you to do on your own! That plastic faceplate is just a shield. You’re not dealing with wires, terminals, or anything live unless you go poking around underneath, which you should not be doing.

Step-by-step:

1. Start smart.

Go ahead and unplug anything that’s plugged into the outlet that you’re working on. From there, it’s smart to flip the breaker for that part of the house to ‘off’ just as an added precaution.

If you have a voltage tester, now is the time to use it to double-check that there’s no power at the outlet before you get started. This part is optional, but helpful if you want that extra layer of reassurance.

Even though you’re just changing the cover and not messing with any wiring, cutting the power takes about ten seconds and keeps things simple.

2. Unscrew the old plate.

Use a flathead screwdriver. Most plates have a single screw in the center. Keep the screw if you’re reusing it, or swap it out with the one from the new plate.

3. Check the area around the outlet or switch.

You should see a snug box in the wall with no loose wires. If anything looks burnt, cracked, or melted, pause here. That’s not a cosmetic fix anymore. You will need to give a licensed electrician a call. If everything looks good, move on to the next step!

4. Attach the new cover.

Line it up and screw it in gently. Don’t over tighten. Snug is enough. Overdoing it can crack the plate or twist the switch behind it.

5. Test it.

Flip your breaker back on if you flipped it off in step 1. Turn the light back on or plug something in. If everything works as expected, you’re good to go!

Tips & Tricks of the Trade:
- Match styles across the room or house. Clean lines go a long way.
- Nylon plates are stronger than the old brittle kind and won’t crack as easily.
- Paintable plates help them blend into the wall if you’re going for a seamless look.
- Screwless options are great for a modern feel — just make sure the base plate lines up clean.
When not to DIY this:

If the outlet is loose, if anything sparks or smells off, or if you see exposed wires moving when the cover comes off — STOP That’s the point where a licensed electrician should take over. Otherwise? This one’s all you. Simple, fast, and surprisingly satisfying.

If you are running into exposed wires, sparks, and odd smells OR you simply don’t want to bother with all of the fuss, give us a call and we’ll get it taken care of for you!

(512)280-8847 . becky@dunmanelectric.com . contact us
June 19, 2025
Texas Storm Prep 101

Protecting Your Electrical System

Texas storms don’t play. One minute it’s sunny, next minute you’ve got tumultuous rain, lightning strikes, and the power’s out. Wind, water, blown transformers—your electrical system takes the hit. Here’s how to prep without overthinking it:

1. Charge the Essentials — Now, Not Later

Storm’s not here yet? Good. Plug in your phone, backup chargers, power banks, tablets…If you want it to work later, plug it in now! Make sure to unplug your electronics and countertop appliances when lightning starts.

* Use power-saving mode on your phone just in case.

* Keep battery-powered flashlights in your most-used rooms.

* Stock fresh batteries in a known, dry place.

2. Unplug What You Don’t Need

Lightning surges can fry your electronics in seconds. If it doesn’t need to be running, unplug it.

* Focus on TVs, computers, gaming consoles, routers, and countertop appliances.

* Leave essentials like the fridge plugged in.

* Don’t wait for the flicker—do it before the storm rolls in.

3. Surge Protect Like You Mean It

Not all power strips are surge protectors. Check your gear.

* Look for the UL 1449 rating and a joule rating of at least 800.

* Move critical devices (routers, modems, entertainment setups, office equipment) to real surge protectors—not $5 strips from the junk drawer.

* If your surge protector’s older than five years or has taken a hit before, replace it!

At Dunman Electric, we install whole-house surge protectors, so if you don’t want to worry about this step in the future, give us a call! (512)280-8847

4. Know Your Breaker Panel

Power cuts and lightning strikes can trip breakers. You need to know how to reset them safely. We have a guide to resetting your breakers here!

* Never touch the panel with wet hands or while standing in water.

* Keep a flashlight or battery lantern near the breaker at all times.

* Reset breakers one at a time.

* If one keeps tripping after reset, something’s wrong. Call a licensed electrician.

5. Using a Generator? Know the Rules.

If you’re running a generator, follow safety protocol.

* Set it up outside— never in a garage or near vents.

* Plug devices directly into the generator unless you have a transfer switch installed.

* Let it cool fully before refueling. Hot engine +gas = explosion risk.

6. After the Storm: Walk the House

Once the storm has passed and lightning has not struck within 10 miles of your home for 30 minutes, do a walkthrough.

* Sniff for weird smells.

* Check for melted outlets, scorch marks, or anything that looks off.

* Check your breaker panel again.

* If something doesn’t look or smell right, or breakers keep tripping, stop and call a licensed electrician ASAP.

You don’t have to be an expert. Just take simple steps, in the right order, before the storm hits. Taking these steps will save you time, money, and a potential electrical fire.

Learn more about our Power & Protect Promo bundle to protect your home’s electrical system and gain peace of mind today!

(512)280-8847 . becky@dunmanelectric.com . contact us

June 18, 2025
Build a Low Voltage Electromagnet at Home

Did you know that electricity flowing through a wire can create an invisible magnetic field? Well, it can! Try this project to create your own, low voltage electromagnet! To get started, open our How To Sand Enameled Wire page for reference and follow the instructions below! Be careful to never touch exposed wire and be sure to disconnect your electromagnet when you’re finished playing with it to avoid overheating the wire and battery. Always ask for help from your adults when handling electricity!

We’d love to see your completed projects! Email us ( admin@dunmanelectric.com) a photo of your electromagnet in action with your name and age to enter our monthly raffle for a Snap Circuits Explorer kit!

June 13, 2025
Preparing Enameled Wire for Projects

There are many different situations where you may need to sand enameled wire for use in our project series in the Kids’ Corner of our site. We’ve included these instructions for your convenience along with a purchase link for our recommended wire here.

June 12, 2025
DIY Homopolar Motor; The Lorentz Force in Action

Today, we will be exploring the Lorentz Force and how you can use it to create your very own simple motor using electricity and magnetism! All you need to get started is 18 gauge copper wire, 1 AA battery, 1-2 disc magnets, wire cutters, and some pliers! Remember to ask an adult for help with cutting your wire!

We’d love to see your completed projects! Email us ( admin@dunmanelectric.com )a photo of your homopolar motor with your name and age to enter our monthly raffle for a Snap Circuits Explorer kit!

June 11, 2025
DIY Dirt Battery; A Lesson In Circuits

In today’s project you can get your hands dirty and learn about circuits at the same time! Follow our step-by-step instructions to create your own dirt battery using just dirt, copper wire, galvanized steel screws, an ice tray, LED diodes, and….a lemon?

We’d love to see your completed projects! Email us ( admin@dunmanelectric.com) a photo of your dirt battery with your name and age to enter our monthly raffle for a Snap Circuits Explorer kit!

June 11, 2025