Which one costs less to run, gas or electric? In most of the country, gas wins by a wide margin. Here in Tampa Bay, the numbers are closer than you’d expect because Florida’s natural gas prices run higher than the national average.
At Action Air Conditioning, we’ve installed both gas and electric water heaters for homeowners across Hillsborough and Pinellas counties since 1988, and this is one of the questions we hear most often. Water heating is usually the second-largest energy expense in a home, right behind heating and cooling, so choosing the right fuel type matters for your monthly bill. The right answer depends on your household’s hot water use, your home’s setup, and how long you plan to stay. Read on to see the real math behind both options, plus a few local factors that can tip the scales.
How Much Does a Gas Water Heater Cost to Run in Tampa Bay?
A typical 50-gallon gas storage water heater uses about 261 therms of natural gas a year, according to ENERGY STAR estimates. A therm is a unit of heat energy, roughly equivalent to what you’d get from burning 100 cubic feet of natural gas.
Florida’s average residential natural gas price is above $2 per therm, higher than most states pay. Run the numbers, and a standard gas tank costs somewhere around $550 to $600 a year to operate in a typical Tampa Bay home. That’s still less than most electric tanks, but the gap is smaller than what homeowners see in states with cheaper natural gas. Gas water heaters generally cost less to run, even in Florida, but not by the wide margin you’ll read about in national comparisons.
How Much Does an Electric Water Heater Cost to Run?
A standard 50-gallon electric resistance water heater uses close to 4,600 kilowatt-hours a year to keep up with an average household’s hot water demand. Florida’s average residential electricity rate runs about 14 cents per kilowatt-hour.
That works out to roughly $650 a year for an average Tampa Bay household, noticeably more than a comparable gas tank. Electric water heaters cost less to buy and install, since there’s no gas line or venting to deal with, but that upfront savings usually gets eaten up by higher monthly bills over the life of the unit. Electric tanks are simpler to install, but they typically cost more to operate month after month.
Why Doesn’t Gas Win by as Much Here as It Does Elsewhere?
Nationally, natural gas is often much cheaper than electricity, so gas water heaters often beat electric ones by a wide margin. Florida flips that script a bit. The state’s natural gas prices rank among the highest in the country, while Florida’s electricity rates sit below the national average.
That narrows the cost gap between the two fuel types considerably. If you’re thinking about switching from electric to gas purely to save on utility bills, it’s worth running the numbers for your own household before paying to add a gas line. Florida’s utility rates differ from national averages, so local numbers matter more than general rules of thumb.
A Third Option: Heat Pump (Hybrid) Water Heater Might Beat Them Both
Heat pump water heaters, or ‘hybrid’ units, offer a third path alongside gas and electric tanks. By extracting heat from the surrounding air to warm your water rather than generating it directly, they run far more efficiently than standard electric water heaters. For Tampa homeowners, this efficiency translates into real dollars: a modern hybrid unit can save up to $576 per year compared to a standard electric heater.
Because Florida’s climate provides the warm, humid air these units need, they are a practical alternative if you have the right space. While they aren’t the right fit for every utility closet, they are a compelling option that often beats both gas and electric on long-term operating costs.
Which Water Heater Fits Your Tampa Bay Home?
Gas typically wins on monthly operating costs, electric wins on installation simplicity, and heat pump (hybrid) water heaters often win on long-term savings for homes with the right setup. The right call depends on your fuel access, your available space, and how long you plan to stay. There is no one-size-fits-all answer, and that is why our team walks every homeowner through the real numbers for their specific situation. If you’re ready to compare the options for your home, get a free estimate from Action Air Conditioning, and we’ll help you land on the system that actually saves you money.
Frequently Asked Questions
Is gas or electric cheaper to run in Tampa Bay?
Gas is usually cheaper to run, but the gap is smaller in Tampa Bay than in most of the country because Florida’s natural gas prices run higher than the national average. A standard electric tank runs around $650 a year to operate, compared to roughly $550 to $600 for a gas tank. Your actual costs depend on your household size and hot water habits.
How much does it cost to switch from electric to a gas water heater?
Switching from electric to gas usually costs more upfront because it often requires adding or extending a gas line, plus proper venting. Action Air Conditioning can inspect your home and give you an accurate installation quote before you commit. For most households, the utility savings take a few years to offset that extra installation cost.
How long do gas and electric water heaters last?
A standard gas or electric storage tank typically lasts 8 to 12 years with regular maintenance. Tankless units can last close to 20 years. Water quality, usage, and maintenance all affect how long the unit holds up.
Is a heat pump water heater worth it in Florida?
Yes, heat pump water heaters are often worth it in Florida because the state’s warm climate aligns with the conditions these units need to operate efficiently. They cost more upfront than a standard electric tank, but the energy savings can offset that difference within a few years for many households.