Tankless Water Heater Services in Lexington & Louisville
Tankless water heaters are a popular home investment because of their endless hot water, energy efficiency, and space-saving benefits.
Dauenhauer is your trusted resource for expert tankless water heater services in Lexington and Louisville, Kentucky. We offer professional tankless water heater installation, repair, and maintenance services to keep your unit running smoothly and efficiently.
What is a Tankless Water Heater?
Tankless water heaters, also known as on-demand water heaters, offer many advantages over traditional water heaters. They can supply endless hot water by heating it on demand rather than storing it in a tank. They are also space-saving and tend to have a longer lifespan.
Tankless water heaters also only use energy when you need hot water. Therefore, they are more energy efficient. Tankless water heaters can save a family of four $95 per year, or $1,800 over their lifetime.
Tankless Water Heater Installation & Replacement Services
Are you interested in replacing your traditional water heater with a tankless one? Dauenhauer offers expert tankless water heater installation services in Lexington and Louisville. We’ll help you determine what size unit will best suit your needs.
We can install both electrical and gas-powered tankless water heaters, as well as new gas lines if you are ready to switch to natural gas.
Tankless Water Heater Repair & Maintenance
While tankless water heaters are durable, they still require regular maintenance to ensure optimal performance and longevity. Dauenhauer’s skilled plumbing professionals can handle a variety of tankless water heater repairs and maintenance needs, including:
- Leaking: Leaks can occur around the unit’s connections or from the heat exchanger.
- Reduced Hot Water Output: This is usually due to sediment buildup, but it can also be due to faulty igniters or low water pressure.
- Error Codes: Many tankless heaters have diagnostic features that displace error codes. Our technicians can interpret these codes and identify the problem.
- Annual Maintenance: Regular flushing of the unit helps prevent scale buildup and ensures efficient operation.
Dauenhauer’s certified plumbers can repair or maintain any tankless water heater, regardless of brand or model. We understand how tankless water heaters work and how to repair them. We know the likely and unlikely causes of problems and how to address them effectively. Does your tankless water heater need repair? Dauenhauer offers professional tankless water heater repair services in Lexington and Louisville.
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Tankless Water Heater Replacements in Lexington, Louisville, And Other Areas
Call Dauenhauer at (502) 275-0400 or schedule an appointment online for expert tankless water heater installation, repair, or maintenance services in Lexington and Louisville.
Tankless Water Heater FAQs
What are the pros and cons of a tankless water heater?
PROS — tankless units last 15–20 years (vs. 8–12 for a tank); they’re 8–34% more efficient on the same gallons of hot water (DOE); they save floor space (roughly the size of a carry-on suitcase, wall-mounted); they deliver endless hot water at or below the rated GPM; and they qualify for ENERGY STAR / utility rebates. CONS — 2–3× the upfront cost of a tank; flow rate is capped (a 9 GPM unit can’t run two full showers + dishwasher at once); most need a gas line upsized to 3/4″ and a Category III stainless vent; electric models need a dedicated 120–200 A electrical feed that most homes don’t have. If gas is available, gas tankless is usually the right choice.
Can you run two showers with a tankless water heater?
Depends on the GPM rating and your water temperature. Standard showers run 2.0–2.5 GPM at full flow (Repipe Solutions Inc.); two showers together = 4–5 GPM minimum. Rinnai and Navien size their residential whole-home tankless at 9–11 GPM — that’s enough for two showers plus a kitchen faucet in warm-groundwater regions (Florida, Texas, Southern California where incoming water is 65–75°F). In cold groundwater regions (Upper Midwest, New England where incoming water drops to 40–45°F in winter), the same unit may only deliver 6–7 GPM because more heat is required per gallon. For a large family or multi-bathroom simultaneous use, spec a 11+ GPM unit or a pair of smaller units in parallel.
Why do some plumbers not recommend tankless water heaters?
A few reasons they cite: (1) electric tankless won’t work during a power outage — and most gas tankless still need power for the igniter and electronics, so they also don’t work without electricity; (2) if descaling maintenance isn’t done annually, hard-water scale destroys the heat exchanger and voids warranty at year 5–7; (3) installed cost recovers over 10–15 years on energy savings, so if a homeowner plans to move soon, the ROI doesn’t land; (4) for homes that run hot water in short bursts all day (big family, laundry-heavy), tank efficiency isn’t actually that much worse than tankless in practice. Informed buyers love them — buyers who weren’t warned about maintenance regret them.
