- HEP Plumbing
- Tankless Water Heater Install

Tankless Water Heater Install
Tankless Water Heater Install | Plumbing | Hillsboro
Imagine stepping into a shower that never runs cold, cooking dinner while the dishwasher hums, and still having hot water to spare—all without a bulky tank stealing floor space. That’s the everyday luxury a tankless water heater brings, and HEP’s Plumbing makes it effortless for Hillsboro homeowners. Our certified technicians size, install, and fine-tune state-of-the-art units that heat water on demand, slashing standby energy loss and trimming utility bills. From the first consultation to hauling away your old tank, we handle every detail so you can enjoy instant, efficient comfort without lifting a wrench.
Locally owned and rooted in the community, HEP’s Plumbing treats your home like our own. We arrive on time, respect your space, and back each installation with rock-solid warranties and 24/7 support. Whether you’re replacing a failing tank or building your dream home, trust the team that Hillsboro counts on for reliable hot water and honest advice—trust HEP’s. Let’s upgrade your comfort and efficiency today.
What our customers say
Why Hillsboro Homeowners Are Switching to Tankless Water Heaters
Tank-style water heaters once dominated homes throughout Hillsboro, yet the shift toward on-demand systems shows no sign of slowing. Residents are increasingly attracted to the compact footprint, sustained hot-water delivery, and energy savings that modern tankless units deliver. The mild but rainy Oregon climate keeps hot-water demand steady year-round, and local building codes encourage efficiency upgrades. As a full-service plumbing contractor, HEP company specializes in helping homeowners capitalize on these advantages through carefully planned and flawlessly executed tankless water heater installations.
The Hillsboro Housing Mix Drives Demand
Hillsboro’s housing stock ranges from vintage bungalows downtown to expansive new builds in the Silicon Forest corridor. In older homes, crawlspaces and closets leave little room for bulky 40- to 80-gallon tanks. New construction, meanwhile, emphasizes green building standards, so builders and buyers look for ENERGY STAR–qualified equipment. Tankless water heaters satisfy both space constraints and efficiency goals, making them a natural fit across neighborhoods such as Orenco Station, AmberGlen, and Tanasbourne.
Local Utility Incentives Support Upgrades
Portland General Electric and Northwest Natural Gas periodically offer incentives for qualifying high-efficiency appliances. Tankless systems with Uniform Energy Factor (UEF) ratings above program thresholds can earn rebates, lowering upfront costs. By partnering with HEP, homeowners receive guidance on paperwork and model selection to ensure rebate eligibility, streamlining the path to reduced energy bills.
HEP Company’s Specialized Approach to Tankless Installations
Not every plumbing firm fully appreciates the technical nuance of fitting a tankless water heater. HEP has refined its methodology to address the unique gas, electrical, and venting requirements inherent to on-demand equipment while minimizing household disruption.
Initial Site Evaluation
A licensed technician begins with a comprehensive walk-through of the property to record:
- Current water heater location, fuel type, and BTU rating
- Pipe material, diameter, and branch layout
- Available amperage at the electrical panel (for electric models)
- Combustion air volume and vent termination options (for gas models)
- Water quality indicators such as hardness and sediment content
This assessment allows accurate sizing—crucial to delivering steady temperatures at peak flow.
Selecting the Right Tankless Unit
HEP’s design team leverages software that factors fixture counts, simultaneous usage habits, incoming supply temperature, and desired output temperature. The tool calculates required gallons per minute (GPM) and temperature rise, leading to model recommendations that balance performance with efficiency.
Key selection criteria include:
- Fuel source compatibility—natural gas, propane, or electric
- Condensing vs. non-condensing heat exchanger technology
- Integrated recirculation pump requirements
- Wi-Fi–enabled diagnostics for ongoing monitoring
- Warranty terms on heat exchanger and component parts
By aligning these variables with homeowner priorities, HEP eliminates guesswork and mismatches that can plague generic big-box solutions.
Pre-Installation Planning and Permitting
Hillsboro’s municipal code mandates plumbing, gas, and often electrical permits for water heater replacements. HEP manages the entire permitting process, submitting plans, scheduling inspections, and ensuring code compliance. When gas line upsizing or panel upgrades are necessary, coordination with utility companies is handled internally, simplifying logistics for the homeowner.
The Step-By-Step Installation Process
1. Safe Decommissioning of the Existing Tank
Technicians isolate the old tank, shut off water and fuel lines, relieve pressure, and drain the vessel. This procedure reduces the risk of scalds or leaks during removal. A protective floor covering is applied to safeguard flooring and walls during equipment transport.
2. Plumbing System Adaptation
Copper, PEX, or CPVC lines are reconfigured to accept the new unit’s male or female NPT ports. Dielectric isolation fittings mitigate galvanic corrosion between dissimilar metals, and full-flow ball valves are installed for future service access.
3. Gas or Electrical Infrastructure Upgrades
- Gas: Larger BTU demands may require a wider pipe diameter or shorter run length to maintain appropriate manifold pressure. Black steel or CSST approved for concealed spaces is routed and pressure-tested with manometers.
- Electric: For units exceeding 18 kW, HEP electricians install dedicated breakers and 6-gauge copper conductors, adhering to NEC guidelines.
4. Venting and Combustion Air
Condensing gas models utilize Schedule 40 PVC or polypropylene concentric vent kits, terminating through an exterior wall or roof with specified clearances from windows and soffits. Non-condensing units incorporate stainless steel Category III venting. Where indoor combustion air proves insufficient, a louvered intake or direct vent configuration is added.
5. Mounting and Commissioning
The compact chassis mounts on bracket systems rated for the unit’s dry weight plus water content. Once all connections are made, the system is purged of air, gas lines are leak-tested using electronic sniffers and bubble solutions, and water flow is initiated. Technicians set dip-switches or digital controllers to match hardness levels, preferred temperature, and altitude parameters.
6. Demonstration and Handover
Homeowners receive a tutorial on:
- Operating the digital remote
- Interval descaling schedules
- Error code interpretation
- Vacation and freeze protection modes
Electronic copies of manuals, warranty registrations, and inspection documents are also supplied.
Advantages of Tankless Water Heaters in the Hillsboro Climate
Endless Hot Water on Demand
With rainfall averaging over 37 inches annually, warm showers remain a daily ritual in Washington County. Tankless technology heats water only when fixtures call for it, providing continuous delivery without the storage limitations of conventional tanks—ideal for families with staggered schedules or luxurious master-bath soaking tubs.
Reduced Energy Consumption
Traditional tanks maintain 120 °F water around the clock, wasting energy through standby losses. Tankless systems avoid this inefficiency, yielding:
- Lower natural gas or electricity usage
- Reduced carbon footprint per household
- Annual utility bill savings that compound over the lifespan of the unit
Space Savings and Design Flexibility
Wall-mounted tankless units free up several square feet of floor area in garages, utility closets, or basements—space that can now store outdoor gear, holiday decorations, or workshop tools. Compact dimensions also enable innovative locations like exterior walls or attic rafters when interior space is scarce.
Longer Equipment Lifespan
Where tank water heaters average 8-12 years, quality tankless models commonly reach 20 years with routine maintenance. Hardened stainless steel heat exchangers resist thermal shock and corrosion, while replaceable components simplify repairs if problems arise.
Gas vs. Electric Tankless Options
Gas Tankless Water Heaters
- Higher maximum GPM for large households
- Faster temperature rise, ideal for simultaneous multi-fixture use
- Require dedicated venting and potential gas line upsizing
- Generally lower operating costs when natural gas rates remain stable
Electric Tankless Water Heaters
- Simplified installation where venting or gas supply is impractical
- No combustion by-products, enabling placement in smaller or sealed spaces
- Require substantial electrical capacity; panel upgrades may be needed
- Best suited for condos, small homes, or point-of-use applications
HEP evaluates utility connection costs, household demand, and long-term operating expenses to guide customers toward the appropriate platform.
Sizing Guidelines for Optimal Performance
Improper sizing can cause fluctuating temperatures or unexpected cold slugs. HEP’s plumbers calculate demand using fixture flow rates and usage patterns. As a rule of thumb:
- Shower: 2.0–2.5 GPM
- Bathroom faucet: 0.5 GPM
- Kitchen faucet: 1.5 GPM
- Dishwasher: 1.0–1.5 GPM
- Washing machine: 2.0–2.5 GPM
A family running a shower and washing machine simultaneously would need 4.5–5.0 GPM at a 70 °F rise if winter inlet water temperatures dip to 45 °F. HEP selects units capable of this output without surpassing 80 % of maximum load, preserving component longevity.
Hillsboro Water Quality and Maintenance Considerations
Hardness and Scale Build-Up
Municipal water in Hillsboro registers moderately hard, ranging from 3–5 grains per gallon. Calcium carbonate deposits can impede heat exchanger efficiency over time. HEP recommends:
- Annual descaling using pump-driven vinegar or citric acid flush kits
- Optional inlet filter screens to trap sediment
- Whole-house conditioners or softeners where hardness exceeds 7 grains
Seasonal Temperature Swings
In winter, groundwater temperatures fall, increasing temperature rise requirements. Condensing units excel under these conditions by reclaiming latent heat from exhaust vapors, maintaining high efficiency despite colder incoming water.
Recirculation Solutions
Large ramblers or multi-story homes often face long wait times for hot water at distant fixtures. HEP integrates dedicated return lines or demand pumps with smart controls, ensuring instant hot water with minimal energy waste. Tankless units with built-in recirculation logic pair seamlessly with these loops.
Building Codes and Safety Protocols
Gas Piping Regulations
Local ordinances align with the Oregon Residential Specialty Code. HEP adheres to:
- Minimum 3 psi pressure testing for 10 minutes
- Pipe support intervals of 6 feet for 1-inch black steel, 8 feet for ¾-inch
- Prohibition of unlisted flexible connectors through concealed spaces
Electrical Standards
For electric models, NEC article 422 applies. Dedicated circuits, correctly sized conductors, and GFCI protection near water sources form core compliance measures.
Vent Clearance Requirements
Gas exhaust terminations must:
- Extend at least 12 inches above grade
- Sit 12 inches horizontally from openings into the building
- Remain 3 feet below eave vents to prevent exhaust recirculation
HEP’s field supervisors confirm adherence prior to city inspection.
Environmental Impact and Sustainability Benefits
Choosing tankless technology contributes to Hillsboro’s sustainability goals by:
- Lowering greenhouse gas emissions through reduced fuel consumption
- Minimizing landfill waste—compact exchangers replace large steel tanks at the end of life
- Supporting flexible integration with PV solar or heat pump systems in net-zero energy builds
Homeowners embracing renewable electricity can pair electric tankless models with rooftop solar arrays, further shrinking their carbon footprint.
Post-Installation Support and Warranty Administration
A successful installation marks the beginning of a long equipment life cycle. HEP provides:
- Scheduled maintenance reminders via email or text
- Replacement of inlet filters, O-rings, and igniters as required
- Warranty claim facilitation with manufacturers to expedite parts shipping
- On-site troubleshooting employing OEM diagnostic software and combustion analyzers
Proactive upkeep prevents limescale accumulation, ignition failures, and vent sensor errors, safeguarding efficiency and performance.
Retrofitting Older Hillsboro Homes
Navigating Tight Spaces
Basements common in 1920s Craftsman houses may feature low ceilings and narrow staircases. The lightweight, wall-hung design of tankless units allows mounting between floor joists or adjacent to chimneys where venting is straightforward.
Upgrading Legacy Plumbing
Galvanized steel piping, prevalent in mid-century construction, corrodes internally and restricts flow. HEP replaces critical sections with PEX-A or Type-L copper during tankless upgrades, preserving pressure and ensuring clean water quality.
Addressing Electrical Limitations
Knob-and-tube wiring or 60-amp service panels cannot support electric tankless heaters. If gas supply exists, HEP favors condensing gas models; otherwise, service panel upgrades are coordinated to enable electric installation.
Integration with Smart Home Technology
Modern tankless systems often include:
- Wi-Fi modules for remote temperature adjustments
- Leak detection sensors that sync with mobile alerts
- Voice-assistant compatibility for on-demand recirculation
Homeowners in tech-savvy neighborhoods near the Intel and Genentech campuses appreciate these features. HEP configures secure network connections and guides users through app setup, ensuring a seamless smart-home experience.
Troubleshooting Common Tankless Issues
Flame Failure Codes
Possible causes include gas pressure drops, dirty flame rods, or obstructed vents. Technicians verify manifold pressure, clean electrodes, and inspect vent terminations for debris.
Cold-Water Sandwich Effect
Short bursts of cold water between hot flows may stem from long pipe runs without recirculation. Adding demand pumps or integrating buffer tanks helps maintain constant temperature.
Mineral Scale Accumulation
Symptoms include reduced flow and loud burner noise. Annual descaling with approved solutions restores full GPM and quiet operation.
Key Takeaways for Hillsboro Residents Considering a Tankless Upgrade
- Tankless water heaters align with city efficiency objectives, lower energy bills, and free valuable floor space.
- Proper sizing and professional installation are critical to sustained performance.
- HEP company’s end-to-end service—from permitting to smart-home integration—ensures code compliance, safety, and optimal comfort.
- Regular maintenance and water-quality management protect the equipment’s extended lifespan.
- Gas and electric models each have unique infrastructure needs, and HEP tailors recommendations to utility availability and household demand.
By trusting seasoned plumbers who understand local codes, climate, and housing quirks, Hillsboro homeowners gain reliable hot water, energy efficiency, and peace of mind that lasts for decades.