Tankless Water Heater Installation Service
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Tankless water heater installation eliminates standby energy losses, delivers continuous hot water at multiple fixtures simultaneously, and frees the floor space a bulky storage water heater occupies. Bonded Plumbworks’ licensed plumbers calculate peak demand, verify gas line volume or panel capacity, and commission the system with proper venting, isolation valves, and a pressure relief valve per code — 24 to 34 percent more energy efficient than tank heaters for households using 41 gallons or less daily.
Tankless water heater installation is a plumbing service that sets up an on-demand water heating system capable of producing continuous hot water without a storage tank. Tankless units heat water as it flows through the heat exchanger, eliminating standby energy losses that account for 20 to 30 percent of a tank water heater’s energy consumption. — Bonded Plumbworks
What Is Tankless Water Heater Installation
Tankless water heater installation involves mounting a compact, wall-hung unit, connecting it to the water supply lines, providing the appropriate fuel source (gas piping or electrical circuit), installing proper venting for gas models, and configuring the system for optimal temperature output and flow rate. Unlike tank heaters that store and continuously reheat water, tankless units activate only when flow is detected.
A tankless water heater uses a flow sensor to detect when a hot water tap opens, then ignites a gas burner or activates an electric heating element to raise the water temperature as it passes through the heat exchanger. Residential gas tankless units produce 150,000 to 199,000 BTU and deliver 7 to 11 gallons per minute, sufficient for simultaneous use at multiple fixtures. — Bonded Plumbworks, serving homeowners since 2006
Gas-fired tankless units are the most common whole-house solution, providing higher flow rates than electric models. Electric tankless units work well for single-fixture or supplemental applications. Proper sizing is critical — an undersized unit cannot maintain temperature during high-demand periods. The cold water sandwich — a brief burst of cold water between hot draws — occurs when a tankless unit shuts down between short demand cycles, and a buffer tank installed downstream stores a small reserve of hot water that eliminates the cold water sandwich during tankless water heater installation. A built-in recirculation pump, available on models from Rinnai and Navien, circulates hot water through the return line so fixtures deliver hot water instantly without waiting for the tankless unit to fire during tankless water heater installation.
When to Schedule Tankless Water Heater Installation
Tankless systems suit specific household situations. Contact Bonded Plumbworks when you are:
- Replacing a tank water heater and want to eliminate standby energy loss
- Experiencing hot water running out during peak household usage
- Seeking a compact unit that frees up floor space in your utility area
- Building or remodeling and want the longest-lasting water heating system
- Looking for equipment that lasts 20 or more years versus 8 to 12 for tank units
- Willing to invest more upfront for lower long-term operating costs
Tankless water heaters last approximately twice as long as tank water heaters. The extended lifespan combined with lower operating costs makes them cost-effective over the full ownership period.
The Department of Energy reports that tankless water heaters are 24 to 34 percent more energy efficient than conventional storage tank heaters for households using 41 gallons or less of hot water daily. For households using 86 gallons or more, they are 8 to 14 percent more efficient. Efficiency gains come entirely from eliminating standby heat loss. — Bonded Plumbworks
How Tankless Water Heater Installation Works
Bonded Plumbworks follows a comprehensive process for every tankless water heater installation.
Step 1: Demand Assessment. We calculate your peak hot water demand by counting simultaneous-use fixtures and their flow rates. A household running two showers, a dishwasher, and a kitchen faucet simultaneously needs a unit rated for 7 to 9 GPM at the required temperature rise. Tankless water heater installation assessment gives you a clear understanding of the right unit size for your household. You review the findings and approve the quote before any installation begins.
Step 2: Fuel Source Verification. For gas units, we verify that the gas line can deliver sufficient volume (typically 3/4-inch minimum supply). We check gas meter capacity and ensure the gas pressure meets the unit’s BTU requirements. For electric units, we verify panel capacity for the required circuit (typically 2 to 4 dedicated 40- or 50-amp circuits for whole-house units). An electrical panel upgrade may be necessary for electric tankless water heater installation when the existing panel lacks sufficient amperage or available breaker slots for the dedicated circuits the unit requires.
Step 3: Location Selection. Gas units mount on an exterior wall or interior wall with access to venting. Electric units mount anywhere with sufficient electrical access. We position the unit to minimize pipe runs to high-demand fixtures.
Step 4: Mounting and Plumbing. The unit is wall-mounted, and hot and cold water connections are made with isolation valves and service ports for future descaling maintenance. We install a pressure relief valve as required by applicable state building codes.
Step 5: Fuel and Venting. Gas models receive a dedicated gas line connection and Category III or Category IV stainless steel vent pipe routed through the wall or roof — non-condensing units require Category III stainless that resists positive pressure, while condensing units require Category IV material rated for both positive pressure and acidic condensate. A condensate drain carries the acidic condensate from a condensing tankless water heater installation to an approved drain point, and a condensate neutralizer inline on that drain raises the pH before the liquid enters the municipal sewer, protecting cast iron drain pipes and meeting local discharge codes. Electric models receive dedicated circuit wiring from the electrical panel.
Step 6: Startup and Calibration. We fill the system, purge air, activate the unit, and calibrate the output temperature. We test at multiple fixtures simultaneously to verify the unit meets peak demand without temperature drop. The eco schedule mode available on smart-enabled tankless units reduces the recirculation pump runtime during unoccupied hours, cutting standby energy consumption after tankless water heater installation without sacrificing hot water availability during peak periods. An AI-powered usage learning system and AI tuner module built into premium tankless models from Navien and Rinnai track daily hot water patterns and automatically adjust firing rates and recirculation schedules, optimizing efficiency over the first weeks after tankless water heater installation.
Gas tankless water heaters require Category III or Category IV stainless steel venting, or concentric vent systems for direct-vent models. Traditional B-vent materials used with tank water heaters are not compatible with tankless units due to higher exhaust temperatures and condensate acidity. Proper venting is a code requirement and safety necessity. — Bonded Plumbworks
Benefits vs. Alternatives
Tankless water heater installation from Bonded Plumbworks provides long-term performance and efficiency gains.
| System Type | Lifespan | Standby Loss | Space Required |
|---|---|---|---|
| Tankless (Gas) | 20+ years | None | Wall-mount, minimal |
| Tankless (Electric) | 20+ years | None | Wall-mount, minimal |
| Standard Tank | 8–12 years | 20–30% of energy | Floor, 6+ sq ft |
| Heat Pump Tank | 13–15 years | Reduced | Floor, 6+ sq ft + air space |
Tankless units never run out of hot water because they heat water on demand. Tank heaters have a fixed capacity that can be depleted during periods of high use. Condensing vs. non-condensing tankless is a key decision during tankless water heater installation — condensing units extract additional heat from exhaust gases to achieve 95 percent or higher thermal efficiency but cost more upfront, while non-condensing units operate at 80 to 85 percent efficiency with simpler venting requirements.
Pricing
Tankless water heater installation pricing depends on the unit type (gas or electric), BTU or wattage rating, gas line modifications, venting requirements, electrical upgrades, and plumbing modifications. Gas-to-gas conversions from an existing tank heater are typically less complex than new gas installations.
Bonded Plumbworks provides a detailed estimate after the demand assessment and site evaluation. Call (855) 557-9600 for scheduling.
Our Qualifications
Bonded Plumbworks has installed tankless water heaters in homes since 2006. Our technicians hold state-certified plumbing contractor licenses and are trained on Rinnai, Navien, Noritz, Rheem, and other major manufacturers. We size every system to actual household demand, ensuring reliable hot water during peak use. Bonded Plumbworks is fully licensed, bonded, and insured. An Energy Star certified tankless gas heater meets the federal efficiency threshold that qualifies for utility rebates and federal tax credits, and Bonded Plumbworks verifies Energy Star certification during every gas tankless water heater installation to ensure the homeowner captures available incentives.
Bonded Plumbworks technicians maintain manufacturer training certifications for Rinnai, Navien, Noritz, and Rheem tankless water heater systems. Correct sizing, gas line verification, and code-compliant venting installation ensure reliable performance, safety, and full manufacturer warranty coverage. — Bonded Plumbworks, established 2006
FAQ
How much does a tankless water heater save on energy bills? Most households save 20 to 34 percent on water heating costs compared to a standard tank heater. For an average home spending $400 to $600 per year on water heating, that translates to $80 to $200 in annual savings.
Can a single tankless unit supply my whole house? Yes, when properly sized. A gas tankless unit rated at 8 to 11 GPM can typically supply 3 to 4 simultaneous fixtures, where the incoming water temperature is warm (around 75 degrees). Bonded Plumbworks calculates your specific demand during the assessment.
Do tankless water heaters need maintenance? Annual descaling is required to remove mineral buildup from the heat exchanger, especially in areas with hard water. Bonded Plumbworks offers descaling service that keeps your unit running efficiently and maintains warranty coverage.
Does tankless water heater installation come with a guarantee? Tankless water heater installation from Bonded Plumbworks includes a 90-day guarantee on tankless water heater installation labor, covering all connections, venting, and gas line work. The tankless unit itself carries a manufacturer warranty of 10 to 15 years on the heat exchanger. If any component we installed fails within the guarantee period, we return and correct it at no additional charge.
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Schedule Your Tankless Water Heater Installation
Upgrade to continuous, on-demand hot water that never runs out. Call Bonded Plumbworks at (855) 557-9600 to schedule a demand assessment for tankless water heater installation. Our licensed plumbers design and install systems sized to your household for reliable, energy-efficient performance. Every tankless water heater installation includes a 90-day guarantee on tankless water heater installation labor.