Gas vs. Electric Dryers in a Laundromat: Cost, Capacity, Code
Gas dryers are common in laundromats where gas is available, because resistance-electric heating generally costs more to operate and adds commercial demand charges. But the choice is decided locally by tariffs, gas meter and service capacity against total connected BTU load, venting routes, combustion air, and code — not by a general rule.
Key takeaways
- Gas is the common choice where available, on operating cost and service-load grounds.
- The constraint is usually capacity, not preference. Total connected BTU load against meter and service line.
- Electric adds demand charges on a commercial tariff that a per-kWh average does not capture.
- Higher washer extraction reduces dryer cost by shortening the cycle that follows.
- Compute it from your own tariffs and cycle data, not from a general claim.
The Comparison
| Dimension | Gas | Electric |
|---|---|---|
| Operating cost | Generally lower where gas is available | Generally higher; varies with local rates |
| Demand charges | Not applicable to the heating load | Real, and often overlooked in per-kWh comparisons |
| Installation complexity | Gas piping, regulator, meter capacity, combustion air | Panel capacity and circuits |
| Venting | Required, with length and elbow limits | Required for vented models |
| Code | Gas appliance requirements, combustion air, sometimes fire suppression | Electrical code |
| Availability | Requires gas service at the premises | Available anywhere |
| Failure modes | Ignition, burners, gas valves | Elements, contactors |
| Suitability | Most stores with gas service | Small stores, no-gas sites, low-electric-rate markets |
Why Gas Usually Wins Where It Is Available
Two reasons, and both are about cost structure rather than performance.
Unit energy cost. In most U.S. markets, delivering a given quantity of heat via natural gas costs less than delivering it via resistance electricity. That gap is what drives the industry's general preference.
Demand charges. Commercial electric tariffs commonly include a demand component based on peak draw, not just consumption. A bank of electric dryers running simultaneously at a Saturday peak creates exactly the demand spike those charges target — a cost a simple cents-per-kWh comparison misses entirely.
For context on the electricity side, the EIA reports state all-sector average retail prices, with a 12.94 cents/kWh U.S. average for 2024 and wide variation between states. The state pages on this site carry each state's figure. But a state all-sector average is not a commercial tariff and does not include demand charges, so it frames the question rather than answering it.
What Actually Constrains the Choice
For most buyers, the decision has already been made by the building.
| Constraint | Check |
|---|---|
| Gas service present | Is there a meter, and is gas available at the street? |
| Meter and regulator capacity | Sum total connected BTU load — dryers plus water heating — against what is installed |
| Service line capacity | The utility can tell you; an upgrade takes weeks and money |
| Venting routes | Length, elbow count, and termination against the manufacturer's maximum |
| Combustion air | Adequate supply for the appliances installed |
| Makeup air | Dryers exhaust large volumes; the space has to replace it |
| Electrical panel | Capacity and available circuits if electric is contemplated |
| Code and permits | Local requirements for gas appliances, venting, and any fire suppression |
Total connected BTU load is the item that most often stops a retool. Adding larger dryers can exceed the existing meter or service line, and discovering that after equipment is ordered turns a scheduling problem into a budget problem. Sum the load and confirm with the utility before ordering.
The Extraction Connection
The cheapest way to reduce dryer cost is not choosing a fuel. It is putting drier clothes into the dryer.
Water remaining in a load after the wash must be evaporated, and that evaporation is the dryer's entire energy consumption. A washer with higher extraction speed removes more water mechanically — which is far cheaper than removing it thermally — and shortens the dryer cycle that follows.
The compounding effects:
- Lower fuel consumption per load
- Shorter dryer cycles, which frees dryer capacity at peak
- Higher effective dryer throughput without adding machines
- Better customer experience, since people wait less
This is why washer selection is partly a dryer-cost decision, and why extraction rating belongs alongside capacity when evaluating a machine. See G-force.
Inspecting Existing Dryers
Whatever the fuel:
- Ignition and burner operation on gas units — reliable light-off, clean flame, no delayed ignition
- Airflow measured at the drum and at the exhaust termination
- Lint accumulation through the whole exhaust run, not just the trap — an efficiency drag and a fire risk
- Exhaust length and elbow count against the manufacturer's stated maximum
- Makeup air adequacy, since starved burners perform poorly
- Tumbler seals, rollers, belts, and bearings
- Cycle time and temperature against specification
- Coin drop or card reader function on each unit
An underperforming dryer looks like a fuel-cost problem and is frequently an airflow problem. Check the exhaust before concluding anything about the fuel.
Pricing the Decision
If you are choosing rather than inheriting, model it rather than assuming:
- Take your actual dryer minutes sold, or estimate from washer cycles and typical dry times.
- Convert to energy required, using manufacturer consumption data for the specific models.
- Price that energy at your actual tariffs — commercial gas rate, and commercial electric including demand charges.
- Add the installation delta: gas piping, venting, combustion air, and any meter or service upgrade versus panel work and circuits.
- Add the schedule delta, since utility upgrades take weeks.
The answer is usually gas where gas is available and capacity exists. The point of the exercise is the "where capacity exists" clause, which is what actually varies between stores.
Summary
Gas is the common choice where it is available, on unit energy cost and because commercial electric demand charges penalize simultaneous dryer operation. But the building usually decides: connected BTU load against meter and service capacity, venting routes, combustion air, and code. Check capacity before ordering equipment, and remember that higher washer extraction reduces dryer cost more reliably than either fuel choice.
The Next Step
Frequently Asked Questions
Are gas dryers cheaper to run than electric?
Usually where gas is available, because resistance-electric heating converts purchased energy to heat at a higher unit cost in most markets and adds demand charges on a commercial tariff. But the answer is local: it depends on your gas and electric tariffs, your demand structure, and the equipment installed. Compute it from your own bills.
What determines whether I can install gas dryers?
Gas availability at the premises, the meter and service line capacity against total connected BTU load, venting routes and lengths, combustion air supply, and local code. A store can be a perfect candidate on paper and impossible in practice because the gas meter is undersized.
Do electric dryers ever make sense?
Yes — where gas is unavailable, where venting is impractical, in small stores, or where electric rates are unusually low. Some jurisdictions also have code or emissions considerations that favor electric. The trade is generally higher operating cost against lower installation complexity.
How does extraction speed affect dryer cost?
Substantially. Water left in a load after the wash has to be evaporated by the dryer, so higher-extract washers shorten dryer cycles, reduce fuel consumption per load, and free dryer capacity at peak. That makes washer selection a dryer-cost decision as well as a washer decision.
What should I check on existing dryers?
Ignition and burner operation on gas units, airflow at the drum and at the exhaust termination, lint accumulation through the whole run, tumbler seals, rollers, belts and bearings, exhaust length and elbow count against the manufacturer's maximum, and makeup air adequacy.
Sources
- Coin Laundry Association, 2024 Laundry Industry Survey — https://member.laundryassociation.org/hubfs/IndustrySurvey24.pdf
- U.S. Energy Information Administration, State Electricity Profiles 2024 — https://www.eia.gov/electricity/state/
- Dexter Laundry, technical document library — https://dexter.com/support/technical-information/?industry=vended
- Coin Laundry Association, Best Practices for Due Diligence in Laundromat Acquisitions — https://laundryassociation.org/membership-files/white-papers/Best%20Practices%20for%20Due%20Diligence%20in%20Laundromat%20Acquisitions.pdf
This page is general information about laundromat transactions, not legal, tax, or investment advice, and not a guarantee of sale price, timing, or financing approval. Verify current rules with your own CPA, attorney, lender, and the relevant state or municipal agency before acting.