- HEP Plumbing
- Hot Water Flowing

Hot Water Flowing
Hot Water Flowing | Tankless Water Heater Install | Plumbing | Harrison
Dreaming of endless hot showers without the bulky storage tank? HEP’s Hot Water Flowing Plumbing makes it easy. Our Harrison technicians handle every detail of a tankless water heater install, ensuring precision sizing, flawless venting, and thorough post-install testing so you can enjoy on-demand hot water and lower energy bills from day one.
If you’re swapping out an aging tank or designing a new build, count on our punctual pros for clean, courteous service backed by iron-clad warranties. Call HEP today and discover how quickly you can trade limited hot water for limitless comfort—the Harrison way.
FAQs
What are the main benefits of installing a tankless water heater in Harrison?
Tankless units heat water on demand, so you never run out of hot water and you avoid standby heat loss from a storage tank. Homeowners in Harrison typically see energy-use reductions of 20-40 percent compared with standard tanks. They also gain space because wall-mounted units are compact, and the longer life span—about 20 years—means fewer replacements.
How long does a typical tankless water heater installation take?
Most residential installations in Harrison are completed in one business day. Our technicians arrive with the venting, gas line components, and isolation valves required for the job. Complex retrofits—such as relocating the unit or upgrading your gas meter—can extend the timeline to two days, but we will give you a precise schedule after the on-site assessment.
Will a tankless unit provide enough hot water for my whole home?
Yes, as long as the unit is sized correctly. A single properly sized tankless heater can support multiple fixtures simultaneously—for example, a shower, dishwasher, and washing machine running at once. During our consultation we calculate your household’s peak hot-water demand (measured in gallons per minute) and recommend a model with the right flow rate so you never experience temperature drops.
What size tankless water heater do I need for my family?
Sizing is based on two factors: the temperature rise (the difference between incoming water temperature and the desired output temperature) and your peak flow rate. In Harrison, groundwater averages 50–55°F. If you want 120°F water, you need a 65–70°F rise. We add up the gallons per minute required by the fixtures you might use at the same time. A family of four usually needs a 7–9 GPM gas unit or a 5–7 GPM electric unit. We perform these calculations for you during the estimate.
Are permits or inspections required for a tankless installation in Harrison?
Yes. The City of Harrison and Westchester County require a plumbing permit and, for gas models, a gas work permit. We handle all paperwork, schedule the inspection, and ensure that the installation meets the International Plumbing Code, National Fuel Gas Code, and local amendments. Electric units may also require an electrical permit if panel upgrades are needed.
How much can I save on energy bills by switching to a tankless system?
Savings depend on usage patterns and fuel costs, but most Harrison homeowners save $80-$150 per year on natural gas and up to $250 per year when replacing an electric tank. Because the unit only fires when you open a hot-water tap, the U.S. Department of Energy estimates efficiency ratings of 90-98 percent for modern condensing models. Over the 20-year life of the heater, that can translate into $1,600-$3,000 in utility savings compared with a standard tank.