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Electric Furnace Wiring
Most appliance failures traced to electrical are loose terminations. Every large appliance has a circuit it expects, and the difference between 30 and 50 amps is not a detail.
Electric Furnace Wiring in O’Fallon and across St. Charles, St. Louis, Lincoln and Warren counties.
Clint Ehman does the work himself. Seventeen years in the trade, Infinity Electric since June 2022.
5.0 from 94 Google reviews · BBB A+ since 2022
What this work actually involves
The circuit is matched to the appliance’s own data plate rather than to what was there before.
Clint measures before he quotes. The reading comes first, then what it means, then the one repair that solves it. If the honest answer is smaller than what you called about, that is the answer you get, even when the bigger job pays better.
Work that needs a permit gets one, and work that needs an inspection is left ready for it. One person does the diagnosis and the repair, so nothing is lost between a salesman and a technician.
When people call about this
- Mini-split installed with no circuit
- A new range or dryer that will not run
- A hot tub waiting on power
- A breaker that trips on a cycle
Why people choose Clint for it
One person does the diagnosis and the repair, so nothing is lost between a salesman and a technician, and nobody is paid to sell past the finding.
Seventeen years in the trade, four of them running his own shop, 5.0 from 94 Google reviews, and an A+ BBB accreditation held since 2022.
Where this is done
Out of O’Fallon across five jurisdictions: St. Charles County, St. Louis County, St. Louis City, and Lincoln and Warren counties. About fifty miles in any direction.
See the full service area, or the rest of our appliances & hvac work.
Dedicated circuits and why appliances want them
A large appliance on a shared circuit is a nuisance trip waiting to happen, and worse, it makes diagnosis hard because the blame gets spread across whatever else is on the line.
One circuit, one appliance, sized to the plate and labeled at the panel with what it feeds. That is what makes a future fault a ten minute diagnosis rather than an afternoon.
Read the data plate, not the old circuit
Every appliance states what it expects: volts, amps or watts, and often the circuit size. That plate is the specification, and a replacement appliance frequently asks for more than the one it replaced.
Same-size replacements still change things. Induction cooktops and heat-pump dryers draw differently from what was there in 1996.
The electrical side of a furnace
An electric furnace is one of the largest loads in a house and wants a correctly sized circuit and disconnect. A gas furnace needs far less but still needs a dedicated circuit and a switch where a service tech can reach it.
Circuit, disconnect and the terminations at the air handler get checked against the plate, which is also where the intermittent no-heat calls usually turn out to be.
Why the diagnosis comes before the quote
A symptom has several possible causes with very different prices, and the only thing that separates them is a measurement. Quoting the expensive one covers the risk; quoting the cheap one and finding the expensive one mid-job is worse.
So the reading happens first, you are told what it says, and then the work is scoped to it. Where the honest answer is the small repair, that is the answer you get, even when the larger job pays better.
What makes this harder in older housing stock
Across this metro the recurring complications are predictable: no equipment ground, aluminum branch wiring from the mid-seventies, knob-and-tube buried in blown-in insulation, panels that have been added to several times, and splices in places the code has not allowed for decades.
Those turn a simple job into a decision about scope. The decision gets put to you with the reading behind it rather than made quietly and billed.
“Clint came out installed me a large 200 amp panel put some new dedicated lines in my basement and garage he did great clean work all inspections passed he was thorough and knowledgeable. I will have him back out again.”
Jason Holtzman · Google review
How the visit goes
- The call
Which appliance, and whether it is new, replacing something, or failing.
- The measurement
The appliance’s data plate against the existing circuit, and the condition of the terminations at both ends.
- The finding
Whether the circuit is right, needs upgrading, or is fine and the problem is a connection.
- The work
Circuit matched to the plate, disconnect and bonding where water is involved, terminations torqued to specification, tested under load.
What the job includes
- Circuit matched to the appliance’s own data plate
- Disconnects and bonding where water is involved
- Terminations torqued to specification
- Correct receptacle or hardwired connection as the appliance requires
- Permit and inspection where required
- Testing under load before we leave
What it does not
- Supplying or repairing the appliance
- Plumbing and gas connections
- Appliance haul-away
Work that is not electrical gets a referral, not a quote. See finished work, or say what the house is doing.
Related appliances & hvac work
Electric Furnace Wiring across the metro
Where the house is changes what the work involves. Clint works out of O’Fallon across five jurisdictions, and the same service means different work in each.
St. Louis County
The obsolete panel brands concentrate in this county, because they were installed through exactly the decades this housing was built and upgraded.
St. Louis City
The City is an independent city, not part of the County, and it runs its own permits and inspections. Assuming county process here is a common and expensive mistake.
Lincoln County
Rural properties where the panel is fine and the two hundred foot run to the barn is the actual job.
Every municipality covered is listed on the service areas page.
Questions worth asking first.
My new appliance will not run. Is it the appliance?
Often it is the circuit. The data plate states what the appliance expects, and comparing that to the existing circuit usually explains it in one visit.
Does a hot tub need its own disconnect?
Yes, with bonding, and placement is specified by code. It is one of the items inspectors check first on spa work.
Will my induction range fit the existing circuit?
Often not. Induction generally draws more than the coil range it replaces, and the appliance data plate settles it before delivery day.
Where do you work?
Out of O’Fallon across St. Charles County, St. Louis County, St. Louis City, and Lincoln and Warren counties, roughly a fifty mile radius.
Do you pull permits?
Where the municipality requires one, yes, and the work is left ready for inspection with the panel labeled and junctions accessible. Requirements genuinely differ across this metro, which is why it is established per address rather than assumed.
Tell him what the house is doing.
You will get a reading and a straight answer about what it means, including the answer where the fix is small. Electric Furnace Wiring in O’Fallon and across the metro.
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