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Gas vs Electric Water Heaters in Florida: Costs and Trade-Offs

New A.O. Smith electric water heater with thermal expansion tank installed in a garage near Riverview, FL

Most homes in Tampa Bay heat their water with electricity, but a growing number of neighborhoods have natural gas at the street, and many homeowners use propane. If you’re replacing a water heater, or building or remodeling, you may get to choose. Here’s how our team explains the trade-offs between gas and electric water heaters in Florida, so you can pick what fits your home and budget.

The short version

  • Electric is simpler and usually cheaper to install, needs no venting, and works anywhere in the house. It reheats more slowly.
  • Gas (natural gas or propane) heats water much faster and suits bigger households, but it needs a gas line, venting and more space around it for safe operation.
  • If your home doesn’t already have gas, adding it just for a water heater rarely pays off. If it does, gas is often worth a serious look.

Installation and what your home already has

The biggest factor is usually what’s already in place. Replacing electric with electric, or gas with gas, is the simplest and lowest-cost job. Switching types is where costs climb:

  • Electric to gas means running a gas line, adding a flue or venting, making sure there’s enough combustion air, and pulling the right permits. In a garage that’s often manageable. In an interior closet or condo it may not be practical at all.
  • Gas to electric usually needs a dedicated 240-volt circuit with the right breaker and wire size. Many Tampa homes have room in the panel, but some older ones don’t.

Electric heaters also fit in more places. They have no flame and no flue, so they can sit in a closet, an attic or a utility room as long as there’s a drain pan and space to service them, like the Riverview garage install in the photo above.

Hot water performance

This is where gas shines. A gas burner puts out far more heat than electric elements, so a gas tank recovers, or reheats, roughly twice as fast. In practice:

  • A 40-gallon gas tank can often keep up with a family that would need a 50-gallon electric tank.
  • Back-to-back showers, a soaking tub or a busy morning are easier on gas.
  • For one or two people with average use, a properly sized electric tank is usually plenty.

Florida helps both types. Our incoming water is warm most of the year, so heaters don’t have to work as hard as they do up north.

Operating cost

Which is cheaper to run depends on your local rates and how much hot water you use. In general, natural gas tends to cost less per unit of heat than electricity, while propane is often the most expensive of the three. Electric tank heaters are very efficient at turning power into heat, but electricity itself costs more per unit of heat. For most Tampa Bay households the monthly difference is real but modest. It matters most for large families and heavy hot water users.

Want the lowest operating cost on electric? A heat pump (hybrid) water heater or an electric tankless unit can cut usage. Our tank vs tankless guide covers those trade-offs, and electric tankless installs start at $2,440.

Safety and maintenance

Both types are safe when installed correctly and maintained. They just need different care:

  • Gas: the venting has to be correct and clear, the burner area kept free of lint and stored items, and a carbon monoxide alarm installed nearby. Pilot and thermocouple problems are the most common repairs.
  • Electric: elements and thermostats are the usual repairs. Hard water scale is the main reason elements burn out in our area.
  • Both: a yearly flush to clear sediment, a working relief valve, and an expansion tank where your plumbing needs one.

Lifespan

Gas and electric tanks last about the same here, typically around 8 to 12 years with proper maintenance. Hard water and skipped flushes shorten that for both. Our guide to how long water heaters last in Tampa explains what wears them out and how to get more years from yours.

Which should you choose?

Electric usually makes sense if:

  • Your home has no gas service, or the heater is in a closet, attic or condo
  • You want the simplest, lowest-cost replacement
  • Your household is small to medium

Gas usually makes sense if:

  • You already have natural gas and proper venting
  • Your family runs out of hot water on electric
  • The heater is in a garage or outside where venting is straightforward

Not sure? Our team will look at your setup, your gas and electric service and how your family uses hot water, then give you a firm price on each option before any work starts. Water heater replacement currently comes with $150 off when you mention the offer while scheduling, and it can be financed through Acorn Finance or Klarna. Our $150/year maintenance plan includes a yearly water heater flush, a whole-home plumbing inspection and a free water test.

Choosing a new water heater?

Northern Plumbing Co. is a licensed, master plumber-led team serving Tampa, St. Pete, Clearwater and the rest of Tampa Bay. You get a firm price before any work starts.

Book onlineCall (813) 263-4941

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