Tankless Water Heater Installation in Bloomington, MN

1. Free In-Home Load Calculation and Unit Selection

We start with a no-obligation site visit to understand your hot-water needs and the constraints of your current setup. During this visit we:

• Measure flow rates at your key fixtures — bathrooms, kitchen, laundry — and ask about simultaneous-use patterns, such as how many showers run at once
• Use that data plus your incoming water temperature to calculate the exact BTU requirement and recommend the right unit type
• Discuss the brands we install — Lennox, Rheem, Navien, GE, Aprilaire — and compare condensing versus non-condensing models on upfront cost, long-term gas savings, and efficiency ratings
• Take a critical look at your current gas line and flag an upgrade now if it’s undersized for the tankless draw
• Trace the venting route from your installation location to the roof or exterior wall and confirm your home’s structure supports code-compliant rigid venting

We quote the unit plus the gas and venting work and discuss payment options before you commit.

2. Disconnect Old Tank, Prepare Site, Secure Permits

Once you’ve approved the install, we schedule the work and handle all permitting required by Bloomington and surrounding jurisdictions. On the scheduled day we:

• Shut off water and gas to your old tank water heater, drain it completely, and haul it away responsibly
• Clean and prepare the space, checking for old gas line corrosion and removing sediment from the water lines
• Confirm the floor or wall mounting surface is level and structurally sound
• Run through the site one more time with you, confirming the new unit location, venting path, and gas and water line routing

3. Gas Line Upgrade and Pressure Verification

Tankless units consume more gas than tank heaters, often requiring upsized supply lines. In this step we:

• Run a new line from the meter or regulator to the unit location if your existing line is 3/8-inch copper and the unit needs 1/2-inch
• Pressure-test every connection, both new and existing, using a calibrated manometer
• Confirm gas delivery matches the unit’s specifications
• Check your meter regulator and confirm it can sustain the higher flow without pressure drop

All work follows Minnesota State Plumbing and Gas Code and is inspected by the local authority before we proceed.

4. Rigid Venting Installation and Draft Testing

Tankless units produce hotter, faster exhaust than tank heaters and require fully rigid — not flex — venting to maintain proper draft and code compliance. Here we:

• Install new stainless-steel vent piping from the unit’s flue collar through the roof or side wall
• Set the correct pitch, with a slight rise toward the exit
• Meet the manufacturer’s and Minnesota code’s termination clearances from windows, doors, and overhangs
• Seal all connections and test for leakage using smoke or pressure methods
• Run a draft test to confirm exhaust is flowing correctly and safely exiting your home

Poor draft is a safety issue and a performance killer; we verify it’s perfect before moving on.

5. Final Connections, Commissioning, Testing, and Handoff

We connect the unit to your home’s main water supply using code-approved fittings and dielectric unions, which prevent galvanic corrosion where dissimilar metals meet. The final step includes:

• Installing a sediment filter on the incoming water line to protect the heat exchanger from mineral and particle buildup — especially important in hard-water areas like the Twin Cities
• Installing, wiring, and programming a recirculation pump for faster hot-water delivery, if you’ve selected a model with one, and showing you how to use it
• Routing the unit’s drain line to a suitable outlet, either an existing floor drain or a new exterior line, ensuring proper flow and no backups
• Firing up the system for the first time to confirm reliable ignition, watch the burner modulation, and set the temperature to your preference — typically 120°F for household safety and efficiency
• Running hot water through every fixture and testing for consistent temperature stability and adequate flow rate, plus a peak-demand test that simulates multiple simultaneous showers
• Walking you through the digital controls, the recommended annual flushing and inspection schedule, and the manufacturer’s warranty coverage, and handing you all manuals and documentation

We provide our workmanship warranty for the first year and leave you with a direct contact number for any questions after the installation.