On-demand Hot Water
On-demand Hot Water | Tankless Water Heater Install | Plumbing | Graysville
Enjoy limitless comfort every time you turn on the tap. HEP’s on-demand hot water experts bring Graysville homeowners the latest in compact, high-efficiency technology that heats water only when you need it—no bulky tank, no standby energy loss, just endless hot water and lower utility bills. From helping you choose the right size unit to hauling away your old heater, our licensed plumbers handle every detail with the courtesy and craftsmanship that have made HEP a local favorite for decades.
Ready to reclaim space, save money, and boost your home’s value? Schedule your tankless water heater install today and we’ll arrive on time, protect your property like it’s our own, and back the job with rock-solid warranties and 24/7 support. One call to HEP is all it takes to turn “wait for the water to warm up” into “hot water now.”
FAQs
What benefits does a tankless water heater offer over a conventional storage tank for Graysville homeowners?
A tankless (on-demand) water heater heats water only when a fixture calls for it, eliminating the standby heat loss you get with a 40- or 50-gallon tank. In the Graysville climate, that translates to energy-use reductions of 25–40 %, utility-bill savings of $80–$150 per year, and a service life of 18–20 years—roughly double that of a tank unit. Because the heater is wall-mounted, you also recover 8–12 sq ft of floor space, and you never “run out” of hot water as long as the unit is sized correctly.
How do I determine the right size (flow rate) tankless unit for my home?
Sizing is based on two factors: (1) the total gallons per minute (GPM) you expect to use at one time—e.g., shower + dishwasher = about 4.5 GPM—and (2) the required temperature rise. Graysville’s incoming water temperature averages 55 °F. If you want 120 °F water, that’s a 65 °F rise. We calculate your peak demand and match it to a heater that can supply that GPM at a 65 °F rise. During our free in-home assessment we inventory your fixtures, measure gas-line capacity or electrical service, and recommend a model (typically 7–10 GPM for a three-bath house).
What’s involved in the installation process and how long will my hot water be off?
Most change-outs are completed in one working day. After shutting off utilities, we remove the old tank, mount the new unit on an exterior or interior wall, run upgraded gas (usually ¾- or 1-in. CSST) or electrical circuits, install stainless-steel or PVC venting, and connect a condensate drain if it’s a high-efficiency model. Water is back on within 4–6 hours; the final 1–2 hours are for purging air, calibrating temperature, and code inspection prep. We haul away the old tank and leave the work area clean.
Do I need permits or inspections to install a tankless water heater in Graysville?
Yes. The City of Graysville and Jefferson County require a plumbing/mechanical permit whenever water-heating equipment is replaced. For gas units, the gas provider may also require a pressure test if new piping is added. Our licensed plumbers pull all necessary permits, coordinate with the city inspector, and provide you with final approval paperwork for your records—no extra trips to city hall for you.
How much can I expect to save on energy bills and what is the typical payback period?
Savings depend on household usage, but most Graysville customers see their natural-gas bill drop 15–25 % (electric models save 10–15 %). That’s $80–$150 a year for an average family of four. Current manufacturer and Alabama Power/Spire rebates range from $100 to $300, and federal tax credits cover 30 % of the installed cost (up to $600) for ENERGY STAR® units. Combining rebates with energy savings, payback is usually 4–6 years—faster if you have high hot-water demand.
What maintenance is required and what warranty do you offer?
Annual maintenance is simple: flush the heat exchanger with a vinegar solution to remove mineral scale (hardness in Graysville averages 6–7 grains), clean the inlet filter, and check venting. We offer an optional service plan that includes this visit and priority scheduling. Most major brands give 12-year heat-exchanger, 5-year parts, and 1-year labor warranties; we add an additional 1-year labor warranty at no cost. With proper maintenance, units routinely last 18–20 years.