How to Choose a Dryer: Gas vs Electric, Capacity, Venting, and Smart Features

Dryer features are the most overrated upsell in home appliances — and if you're shopping based on them, you're already doing it wrong.

After seven years buying appliances for a major retailer, I can tell you that roughly 80% of your dryer decision is locked in before you ever look at a control panel: fuel type, venting path, and drum size. Everything else — steam refresh, Wi-Fi, allergen cycles, that little touchscreen — is a $200–$400 conversation about convenience. Most shoppers do it exactly backwards. They fall for the smart dryer on the showroom floor, get it home, and then discover the laundry closet can't vent it, the panel can't power it, or there's no gas line within 20 feet.

So let's do this in the right order.

The Contenders

Gas dryers. Typically 22,000 BTU/hr burners with a standard 120V plug for the motor and controls. They dry fast, run cheap per load, and cost $50–$150 more than an equivalent electric model. The catch is installation: you need an existing gas hookup, and adding one runs $150–$400+ depending on your home.

Electric dryers. A 240V, 30-amp circuit driving a 5,000–5,600W heating element. Cheaper to buy, universally installable if you already have a 240V dryer outlet, and more expensive to run. If you're replacing an electric dryer in place, this is the path of least resistance.

Heat pump (ventless) dryers. A closed-loop refrigeration cycle that pulls moisture out instead of blowing it outdoors. They sip electricity — roughly half the draw of a conventional electric dryer — and need no ductwork at all. The trade-offs are real: 2x cycle times, $300–$600 more upfront, and a lint/condensate maintenance routine people underestimate.

Capacity tiers. The four classes that actually matter: compact (3.4–4.5 cu. ft., usually stacked or under-counter), standard (7.0–7.4), large (8.0–9.0), and oversized (9.0+).

What We Tested

This guide is built from spec sheets and installation manuals for the current dryer lines from LG, Samsung, and Whirlpool, cross-referenced against Review Atlas's own hands-on coverage of LG dryers, Samsung dryers, and Whirlpool dryers. I also mapped the cost math using national average utility rates — about $0.17/kWh for electricity and $1.25 per therm for natural gas — and adjusted for the way real households actually run laundry (roughly 280–320 loads a year for a family of four).

Where I'm being honest about limits: I don't have a lab with 200 units running 10,000 cycles. Cycle-time and energy figures below come from manufacturer spec data and published third-party testing, not my own instrumented bench. For model-specific performance, the linked reviews have the hands-on detail.

Design & Build

Fuel type is a site decision, not a preference

Before you compare anything else, walk to the laundry area and look. A 240V, 30-amp receptacle with a matching breaker means electric is the cheap, obvious swap. A capped gas stub with a shutoff valve means gas is on the table. If you have neither, you're pricing an install, not just an appliance — and a 240V circuit run can cost $300–$800, which is more than the difference between most dryers on the floor.

Don't let a salesperson talk you into gas because it's "cheaper to run" without pricing the hookup. That's the single most common bad advice in this category.

Venting is where good purchases go to die

The vent run you have determines which dryers you can even buy. Standard vented dryers need a 4-inch rigid metal duct, and manufacturers specify a maximum equivalent length — usually 35 feet for a straight run, minus 5 feet per 90° elbow and 2.5 feet per 45°. A laundry closet with three elbows and a roof termination can blow through that budget fast.

Rules I'd tattoo on the wall:

• Rigid or semi-rigid metal only. Never vinyl flex. It sags, traps lint, and is a fire risk.
• Shorter is better, always. Fewer elbows beats a bigger blower every time.
• Clean it annually. Lint buildup is the leading cause of dryer fires, and it also quietly lengthens every cycle.
• No ductwork at all? You're a heat pump or condensing dryer buyer whether you like it or not. Condos, closets, and interior laundry rooms often have no other legal option.

Capacity: buy for your bulkiest load, not your average one

A dryer drum should be roughly twice the capacity of your washer in pounds, and loosely filled — not stuffed. Overloading is the #1 reason people think their dryer is "broken" when it's actually just fighting a wet king comforter.

• 1–2 people, typical loads: 7.0–7.4 cu. ft.
• Family of 3–4: 7.4–8.0 cu. ft. This is the sweet spot and where most of the market lives.
• King bedding, towels in volume, bulky workwear: 8.5–9.0 cu. ft.
• Apartment, stacked, or under-counter: 3.4–4.5 cu. ft., accepting that comforters go to the laundromat.

Step-up pricing on capacity is usually modest — often $50–$100 to go from 7.4 to 8.0 — while going from 8.0 to 9.0+ can add $200+. Buy the 8.0.

Controls and build details that matter

A moisture sensor (rather than a thermostat-only auto-dry) is the single most valuable feature on any dryer and is standard on almost everything above entry level. A reversible door matters if your layout is tight. A drum light sounds trivial until you own one. Stainless or powder-coated drums both hold up fine; there's no meaningful durability gap.

Performance

Speed. Gas dryers are the fastest conventional option — the burner reaches temperature almost instantly versus the ramp-up of a resistive element. In practice, expect a typical load to finish 5–10 minutes sooner on gas. Heat pump dryers are the slowest, often 1.5–2.5 hours for a normal load, and they hate being overfilled.

Energy and real cost per load. Here's the math that actually decides this argument. A conventional electric dryer uses about 3.3 kWh per load: roughly $0.56. A gas dryer uses about 0.22 therms plus ~0.4 kWh for the motor: roughly $0.33. That's a savings of about $0.23 per load — around $70 a year for a family doing 300 loads.

That means a gas dryer paying back its $100 premium in under two years — if the gas line already exists. If you're paying $300 to run one, your breakeven stretches to five-plus years, and an electric dryer or even a heat pump unit starts looking smarter. A heat pump dryer lands around $0.25–$0.34 per load, competitive with gas and better than electric, but you pay $300–$600 more upfront — so it's a 6–10 year payback on energy alone. Buy it for the ventless installation, not the savings.

Fabric wear. Higher heat is harder on elastic and synthetics. Gas dryers run hot; heat pump dryers run cool and are genuinely gentler. If you're drying a lot of athletic wear, that's a real argument.

Smart features: the honest verdict. Cycle-end notifications, remote start, and self-diagnostics are the only smart functions with day-to-day value, and only if your laundry is in a basement or garage. Steam refresh is a marginal de-wrinkler at best — it's not a substitute for an iron. "AI fabric sensing" is a marketing wrapper around moisture sensing you already have. None of it is worth a $200 premium over a comparable dumb dryer with good sensor drying.

Price & Value

Option	Typical Price	Install Cost	Cost/Load	10-Year Energy Cost*
Electric, 7.4 cu. ft.	$650–$900	$0 (existing 240V)	~$0.56	~$1,680
Gas, 7.4 cu. ft.	$700–$1,000	$0–$400	~$0.33	~$990
Heat pump, 4.5–7.4 cu. ft.	$1,000–$1,600	$0 (no vent)	~$0.30	~$900
Smart/steam add-on	+$150–$400	—	no change	no change

*At 300 loads/year, $0.17/kWh, $1.25/therm.

Read that last row again. The smart-steam upgrade costs more than a decade of the gas-versus-electric difference. That's the whole ballgame.

Who Should Buy Which

Buy gas if: you already have a gas stub, you do high volume (four or more loads a week), or you live somewhere with expensive electricity and cheap gas. Pair it with a large-capacity model and check our Whirlpool dryer reviews for the workhorse picks.

Buy electric if: you have an existing 240V outlet, you're on a tight budget, or you're renting and replacing in place. This is the default answer for most people and there's no shame in it.

Buy heat pump if: you have no vent path, you live in a condo or apartment, you want the gentlest drying, or you're in a jurisdiction phasing out gas. Accept the longer cycles. Look at LG dryers and Samsung dryers for the strongest ventless lineups.

Buy compact/stacked if: floor space is the constraint, full stop. Match it to a same-brand washer — stacking kits are brand- and model-specific, and mismatches are a headache. If you're buying both at once, start with our washing machine buying guide so the pair actually fits.

Skip the smart upgrade if: your laundry is on the main floor and you can hear the buzzer. Put the money into capacity instead.

Bottom Line

Buy the dryer that fits your hookups and vents properly, size it one step above what you think you need, and spend your feature budget on moisture sensing rather than Wi-Fi. Fuel type is a site survey question, not a philosophy. Gas wins on operating cost only when the line already exists; electric wins on simplicity; heat pump wins when ductwork is impossible. Everything else is noise.

Key Takeaways

• Check your hookups first — 240V outlet vs. gas stub decides your fuel type more than any cost calculation.
• Vent run length and elbow count can rule out vented dryers entirely; rigid metal only, 35 ft equivalent max, cleaned annually.
• Gas saves about $0.23 per load (~$70/year) — a 2-year payback with an existing line, 5+ years if you're paying to install one.
• Size up to 7.4–8.0 cu. ft. for a family; the jump from 7.4 to 8.0 is usually under $100.
• Moisture sensing is the feature worth paying for. Steam and smart connectivity are conveniences, not performance.
• Ventless heat pump is the right buy for condos and interior closets — buy it for the installation, not the energy savings.

Frequently Asked Questions

How long do dryers last?

Most gas and electric dryers last roughly 10 to 13 years with typical family use, and heat pump models land in a similar range. Lifespan depends more on how often you run it, whether the vent stays clean, and correct installation than on brand. Start budgeting for replacement once repairs exceed half the price of a new unit.

Can you convert a gas dryer to electric?

In practice, no. Conversion kits are rare, brand-specific, and swapping a gas burner for a 240V heating element (or the reverse) usually voids the warranty and costs more than the price gap between models. Buy the fuel type your laundry area already supports, or price the new hookup before committing to a dryer.

Can you stack a dryer on top of a washer?

Only if both units are stackable and you use the matching stacking kit, typically $30–$60. Most front-load washers pair with a same-brand dryer, while top-load washers generally cannot be stacked. Check the combined height against your closet, plus clearance for the dryer door and the hoses behind the washer.

Do heat pump dryers need a drain?

Most heat pump dryers ship with a removable condensate tank you empty every load or two. Many models also accept an optional drain hose, so water runs into a standpipe or laundry sink and you never handle it again. If you can plumb it, do — it removes the most common complaint about ventless drying.