Tankless Water Heaters in Milwaukee

Milwaukee homeowners contend with winter temperatures that regularly drop below 15°F, putting exceptional demands on water heating systems. Tankless water heaters provide a solution that delivers continuous hot water while reducing energy consumption by 24-34% compared to conventional tanks. At ABC Plumbing, Sewer, Heating, Cooling and Electric, our Master Plumbers have installed over 1,200 tankless systems across Milwaukee County since 2005.

What Is a Tankless Water Heater?

Tankless water heaters (also called on-demand heaters) heat water directly without using a storage tank. When you turn on a hot water tap, cold water travels through a pipe into the unit where either a gas burner or electrical element heats it instantaneously.

These wall-mounted units typically measure 28"×20"×10", freeing up 16 square feet of floor space compared to standard 50-gallon tanks. For Milwaukee homes with finished basements or limited utility areas, this space-saving design offers significant advantages.

How Tankless Technology Works

Tankless systems use high-powered burners (150,000-199,000 BTUs for gas units) or electrical elements (up to 36kW) to rapidly heat incoming water to your preset temperature. Flow sensors detect water movement and activate the heating system within 0.5 seconds.

Unlike traditional tanks that maintain water at 120-140°F constantly, tankless units heat only when needed, eliminating standby heat loss that accounts for 15-20% of conventional water heating costs.

Traditional vs. Tankless Comparison

Traditional water heaters store 40-80 gallons of constantly heated water, occupy 9-16 square feet of floor space, and typically last 8-12 years in Milwaukee's hard water conditions.

Tankless systems heat water on demand (5-10 GPM), mount on walls, maintain 96-99% energy efficiency throughout their lifespan, and typically operate reliably for 15-20 years with proper annual maintenance.

Benefits of Going Tankless in Milwaukee

Milwaukee's municipal water supply averages 8 grains of hardness per gallon and winter groundwater temperatures drop to 39°F, creating specific challenges for water heating systems.

Energy Savings and Efficiency

According to monitoring studies by Wisconsin Focus on Energy, properly sized tankless water heaters reduce natural gas consumption by 29% on average in Milwaukee homes. This translates to $140-$220 annual savings for typical households.

Current Wisconsin Focus on Energy rebates offer $100-$200 for qualifying installations, while federal tax credits provide additional incentives of up to $300.

Never Run Out of Hot Water

With flow rates of 5-10 gallons per minute, depending on model and incoming water temperature, a properly sized tankless system ensures continuous hot water even during Milwaukee's coldest months when groundwater temperatures require greater heating capacity.

Key Factors Before Installing a Tankless System

Milwaukee building codes (Chapter 225-3) require professional installation and specific venting configurations for gas tankless systems. Homes built before 1990 often need gas line upgrades from ½" to ¾" pipe to support the higher BTU requirements.

Sizing for Your Household

For Milwaukee winter conditions, our certified technicians calculate sizing based on:

• Peak flow requirements (simultaneous fixtures)

• Incoming water temperature (39°F winter average)

• Required output temperature (typically 120°F)

A family of four requires a unit capable of 7-8 GPM with a 70°F temperature rise to ensure adequate hot water supply.

Professional Installation Requirements

Milwaukee's UDC plumbing code requires permits, backflow prevention, and pressure relief valves for all water heater installations. Our Master Plumbers licensed with the state of Wisconsin, ensure all installations meet or exceed these requirements.

Frequently Asked Questions About Tankless Water Heaters

What is the average cost of installing a tankless water heater?

Milwaukee installations typically range from $2,800-$4,300 including the unit and professional installation. Learn more about how tankless water heaters work.

Do tankless water heaters work in cold Milwaukee winters?

Yes. We install models rated for Milwaukee's climate with temperature rise capabilities of 70°F+. Read about tankless water heater temperature capabilities.

Why Choose ABC for Your Tankless Water Heater

All our tankless installations are performed by Wisconsin-licensed Master Plumbers with specialized factory certification from Navien, Rheem, and Rinnai. ABC Plumbing, Sewer, Heating, Cooling, & Electric has received the Angi Super Service Award for 7 consecutive years and maintains an A+ BBB rating.

Contact ABC today to schedule your free tankless water heater consultation.

ABC Milwaukee Area Locations