SOS 24/7 Plumbing Corp
ClaimServices: Leak detection & repair, Drain cleaning, Water heater service, +4 more
The 30-Second Verdict
Solar water heaters make exceptional financial sense in Florida with 300+ sunny days per year — 70–90% energy savings with a 6–8 year payback. Tankless gas offers unlimited hot water with no weather dependency.
Head-to-Head Breakdown
Solar Water Heater
Pros
- Florida's sunshine makes this one of the best ROI home improvements
- 70–90% reduction in water heating energy costs
- 30% federal tax credit available
- 20–30 year lifespan for quality systems
Cons
- High upfront cost — $3,500–$7,000 installed
- Requires backup (electric or gas) for cloudy stretches
- Roof space required — typically 40–80 sq ft of collectors
- Annual maintenance required (antifreeze in indirect systems)
Tankless Gas Water Heater
Pros
- Endless hot water regardless of weather
- No roof space required
- Strong in homes with existing natural gas line
- 20+ year lifespan with descaling maintenance
Cons
- Ongoing gas costs — not free fuel like solar
- Sensitive to Florida hard water — annual descaling needed
- Higher upfront cost vs. tank but lower vs. solar
Side-by-Side Comparison
| Solar Water Heater | Tankless Gas Water Heater | |
|---|---|---|
| Installed Cost | $3,500–$7,000 | $1,500–$3,500 |
| Energy Cost (annual) | $0–$150 (backup only) | $250–$500 gas (varies) |
| Federal Tax Credit | 30% (Form 5695) | None |
| Net Cost After Credits | $2,450–$4,900 | $1,500–$3,500 |
| Annual Energy Savings vs. Electric Tank | 70–90% ($350–$600/yr) | 20–30% ($100–$200/yr gas) |
| Weather Dependency | Cloudy days reduce output | None — consistent performance |
| Maintenance | Annual inspection, glycol check | Annual descaling |
| Best For | Electric homes, maximum ROI, eco-focused | Gas-available homes, high-demand households |
Frequently Asked Questions
Are solar water heaters worth it in Florida?
Strongly yes — Florida averages 230–300 sunny days per year, making solar water heaters more effective here than almost anywhere in the US. With the 30% federal tax credit and FPL/utility rebates, a quality solar water heater system can pay back in 5–8 years and deliver 20+ years of near-free hot water.
Do solar water heaters work on cloudy days in Florida?
They produce reduced output on cloudy days — typically 20–40% of normal. All properly installed Florida solar water systems include an electric or gas backup that automatically activates when solar can't meet demand. Extended cloudy periods (typically 3–5 days max in Florida) trigger the backup seamlessly.
Top-Rated Local Florida Plumbing Alternatives
You don't have to pick a national brand. These Florida-based plumbing companies have the highest real Google ratings in our directory — often at a fraction of the franchise price.
New Life Plumbing LLC
ClaimServices: Leak detection & repair, Drain cleaning, Water heater service, +4 more
Services: Leak detection & repair, Drain cleaning, Water heater service, +4 more
Services: Leak detection & repair, Drain cleaning, Water heater service, +4 more
Drain Clean Heroes
ClaimServices: Leak detection & repair, Drain cleaning, Water heater service, +4 more
Services: Leak detection & repair, Drain cleaning, Water heater service, +4 more