- HEP Plumbing
- Energy-efficient Model

Energy-efficient Model
Energy-efficient Model | Tank Water Heater | Plumbing | Duff
Discover how HEP’s energy-efficient model plumbing solutions can lower your utility bills while keeping hot water ready whenever you need it. Our modern tank water heater units combine superior insulation, smart thermostatic controls, and rapid-recovery elements to conserve energy without sacrificing performance. From the initial consultation in Duff to seamless installation and ongoing maintenance, our licensed technicians handle every detail, so you can enjoy reliable hot water and peace of mind year-round.
Choose HEP and experience the perfect blend of cutting-edge engineering and hometown service. We back every system with robust warranties, flexible financing options, and 24/7 emergency support, ensuring your home stays comfortable and efficient for years to come.
FAQs
How is an energy-efficient tank water heater different from a standard model?
High-efficiency tanks are built with thicker foam insulation, ultra-low-loss heat traps and high-performance burners or heat-pump technology that squeezes more usable heat out of the same amount of fuel or electricity. Many condense the exhaust gases so less heat escapes up the flue, pushing efficiency into the 90 %+ range for gas units and a Uniform Energy Factor (UEF) of 3.2 or higher for hybrid electric models. The result is more hot water, lower standby losses and smaller utility bills without changing how you use hot water.
What size high-efficiency tank water heater do I need for my Duff home?
Sizing still depends on the number of bedrooms, fixtures and simultaneous hot-water uses, but an efficient 40- or 50-gallon unit often replaces a standard 50- or 65-gallon tank because recovery rates are faster. A two-bath, three-bedroom household usually needs a 40- to 50-gallon high-efficiency gas or 50- to 66-gallon hybrid electric model. For larger families or homes with deep soaking tubs, we may recommend an 80-gallon heat-pump or a 65-gallon high-recovery gas unit. Our technicians will calculate First-Hour Rating (FHR) and peak demand on site to confirm the right size.
How much can I expect to save on utility bills by upgrading?
Duff homeowners typically cut water-heating costs 25-50 %. At local natural-gas rates of about $1.10/therm, that translates to $80–$150 per year for an average family. Hybrid electric heat-pump models can save even more—up to $300 annually compared with a standard electric tank. Because water heating is 15-20 % of the typical Duff energy budget, the payback period for a high-efficiency unit is usually 3–6 years, and even faster if you also take advantage of rebates.
Are there rebates or tax incentives available in Duff for installing an energy-efficient tank water heater?
Yes. Duff Public Utilities currently offers a $300 bill credit for ENERGY STAR® gas condensing or heat-pump electric water heaters installed by a licensed plumber. In addition, the federal Energy Efficient Home Improvement Tax Credit (25C) allows you to claim 30 % of the installed cost, up to $600, on your annual taxes. Some customers also qualify for low-interest financing through the Nebraska Energy Office. We handle all paperwork and will apply the rebate on your behalf at the time of installation.
What maintenance does a high-efficiency tank water heater require?
Maintenance is straightforward. 1) Flush two to four gallons of water from the drain valve every six months to remove sediment. 2) Inspect or replace the anode rod every 2–3 years; this prevents tank corrosion and is particularly important in Duff’s moderately hard water. 3) Clean the air intake screen or heat-pump filter annually so the burner or compressor can breathe. 4) Test the temperature-and-pressure relief valve once a year. Our annual tune-up service takes about 45 minutes and keeps the manufacturer’s warranty intact.
How long does installation take, and will I be without hot water?
A standard replacement in Duff typically takes 2–4 hours, including removal of the old tank, any code upgrades, and startup of the new unit. Your hot-water downtime is limited to the same day because we bring the new tank pre-staged and haul the old one away. If we need to relocate the unit, add venting or run a condensate drain line, the job may extend to a full day, but you’ll still have hot water that evening. We schedule at your convenience and offer temporary heaters for rare multi-day projects.