On-demand Comfort
On-demand Comfort | Tankless Water Heater Install | Plumbing | Manchester
Swap the bulky tank for endless comfort. HEP’s On-Demand Comfort Plumbing brings Manchester homeowners a seamless tankless water heater install that delivers hot water the moment you open the tap—no storage tank, no standby heat loss, no cold-shower surprises. Our licensed pros arrive on schedule, protect your home with drop cloths, and handle every detail from gas line sizing to final code inspection, so you only notice the luxurious, never-ending flow of perfectly heated water.
Beyond instant comfort, our high-efficiency systems can cut energy bills by up to 40 %, free up valuable closet space, and last twice as long as a traditional tank. Whether you’re building new, replacing a failing heater, or just tired of paying to keep 50 gallons hot all day, HEP’s local experts make the switch effortless—supported by upfront pricing, solid warranties, and a satisfaction guarantee that’s as reliable as your new hot-water supply.
FAQs
What are the main advantages of choosing a tankless water heater over a traditional storage tank in Manchester?
Tankless—or on-demand—units heat water only when you open a tap, eliminating the standby heat loss of a storage tank. For most Manchester households this translates to 20–40 % lower gas or electric consumption, virtually endless hot-water supply, and a unit that lasts 18–20 years versus 8–12 years for a tank. Tankless models are also wall-mounted, freeing up floor space, and many qualify for high-efficiency rebates from Greater Manchester utilities such as Eversource and Liberty.
How do I determine the correct size (flow rate) for a tankless water heater in my home?
Sizing is based on two numbers: 1) the peak flow rate you expect to run simultaneously, and 2) the required temperature rise. We add the gallons-per-minute (GPM) ratings of the fixtures you may use at once—for example a shower (2.0 GPM) plus a dishwasher (1.5 GPM) equals 3.5 GPM. Next we calculate temperature rise: Manchester’s incoming water is around 45 °F in winter; to reach 120 °F you need a 75 °F rise. Our technicians use these factors, along with fuel type and venting constraints, to recommend a properly sized unit (typically 6–10 GPM for most three-bath homes). An undersized heater causes lukewarm water; an oversized one wastes money up-front, so professional sizing is critical.
What does the installation process involve and how long will my home be without hot water?
A standard retrofit takes 4–8 hours. We start by shutting off water, gas/electric, and draining the old tank. While one technician removes the tank, another mounts the new wall bracket, upgrades gas line diameter if needed (tankless units need higher BTU input), installs PVC or stainless venting to meet New Hampshire Mechanical Code, and reroutes water lines through a service-valve isolation kit. Once everything is connected, we purge air, check for leaks, and program the control panel. Your hot water is typically restored by late afternoon, and we haul away the old tank at no extra charge.
Do I need permits or inspections for a tankless installation in Manchester, NH?
Yes. The City of Manchester requires a plumbing/mechanical permit for any water-heater replacement that alters venting or fuel piping. Our licensed master plumbers handle the application, schedule the city inspection, and ensure the installation meets 2024 International Plumbing Code (IPC) and National Fuel Gas Code standards. Skipping the permit can void manufacturer warranties and create issues when selling your home.
How much can I expect to save on energy bills and are there local incentives?
Households that switch from an 0.60-EF tank to a 0.94-UEF condensing tankless unit save roughly $90–$150 per year on natural-gas bills—and potentially more with oil or propane. Electric tankless heaters can cut usage by 10–20 % if your service panel supports the amperage. Eversource and Liberty Utilities currently offer rebates up to $700 for ENERGY STAR® certified models; additional federal tax credits of 30 % (capped at $600) are available under the Inflation Reduction Act for high-efficiency water heaters installed in 2024.
What maintenance is required for a tankless system, especially with Manchester’s water quality?
Manchester’s municipal water is considered moderately hard (~6–7 grains per gallon). Mineral scale can build up on the heat exchanger, lowering efficiency and triggering error codes. To prevent this, we recommend an annual service: flush the unit with 4 gallons of white vinegar or a citric-acid solution using the built-in isolation valves, clean the inlet screen filter, and inspect the vent and condensate drain. The entire visit takes about an hour. Homes with hardness above 10 GPG—or private wells—should add a whole-house scale inhibitor or softener to maintain warranty coverage and peak performance.