- HEP Plumbing
- Tankless Water Heater

Tankless Water Heater
Tankless Water Heater | Tankless Water Heater Install | Plumbing | Lake City
Imagine stepping into the shower and enjoying a steady, never-ending stream of perfectly heated water while actually lowering your utility bills. That’s the everyday reality HEP brings to Lake City with our expert tankless water heater install services. Our licensed plumbers assess your home’s hot-water demands, select the right high-efficiency unit, and handle everything from permits to final cleanup—so all you notice is the extra space in your utility closet and the immediate bump in comfort.
Locally owned and operated, HEP understands the unique plumbing needs of Lake City homes. We arrive on time, provide upfront pricing, and back every installation with a rock-solid satisfaction guarantee. Whether you’re replacing a failing tank or planning a new build, our 24/7 team is ready to deliver endless hot water, lower energy costs, and the peace of mind that comes with professional craftsmanship.
FAQs
What advantages does a tankless water heater offer over a traditional tank in Lake City’s climate?
Because a tankless unit heats water only when it’s needed, you eliminate standby heat loss that occurs with storage tanks. In Lake City’s mild winters and hot, humid summers, this translates to energy savings of 20-40 %, endless hot water for back-to-back showers, and up to 50 % less floor-space usage—ideal for smaller utility rooms or exterior wall mounts. Tankless models also have a life expectancy of about 20 years, nearly double that of most tank units, lowering long-term replacement costs.
How do I determine the right size (flow rate) tankless unit for my household?
Sizing is based on the total gallons per minute (GPM) of hot-water fixtures you expect to run simultaneously and the temperature rise required—i.e., the difference between incoming groundwater temperature (about 68 °F in Lake City) and your desired output (usually 120 °F). For example, running one shower (2.0 GPM) and a washing machine (2.5 GPM) at the same time requires roughly a 4.5 GPM unit with a 52 °F rise. Our technicians perform a fixture count, usage audit, and load calculation during the estimate to recommend a properly sized gas or electric model.
Can the new tankless heater be installed where my old tank-style heater was located?
Often yes, but a tankless system has different venting, gas-line, and electrical requirements. Gas units typically need a larger ¾-inch gas supply line and Category III or IV stainless-steel venting that terminates outdoors. Electric units may require a 240-volt circuit upgrade. If the existing space lacks adequate combustion air or clearance, we can mount the unit on an exterior wall or in an attic, freeing up the old closet for storage. During the site visit we check code compliance, structural support, and drainage for the condensate line before finalizing placement.
How long does installation take, and will I be without hot water?
A straightforward replacement in the same location takes about 4–6 hours. Relocations, gas-line upsizing, or panel upgrades can extend the job to a full day. We usually schedule installations in the morning, shut off water and power for only 1–2 hours, and have hot water running again before we leave. If your project spans multiple days, we can provide a temporary water-heater hookup to minimize downtime.
Do I need a permit and inspection for a tankless water heater installation in Lake City?
Yes. The City of Lake City Building Department requires a plumbing/mechanical permit and, for gas units, a fuel-gas permit. After installation, a city inspector checks gas tightness, venting, electrical bonding, and pressure-relief valve termination. We handle the paperwork, schedule the inspection, and provide you with the signed permit card for your records—ensuring your warranty remains valid and your homeowners insurance stays in good standing.
What ongoing maintenance is required, and do you offer service plans?
Hard water in Columbia County can cause scale buildup that reduces efficiency. Manufacturers recommend an annual flush with a vinegar solution and a screen-filter cleaning. Gas models also need a combustion analysis every two years. We offer economical maintenance plans that include the flush, safety inspection, descaling solution, and a 10 % discount on any parts. Regular upkeep keeps your unit under warranty and can add 5+ years to its service life.