Transform your home’s hot water experience with advanced tankless water heater systems from McCandless Plumbing & Excavation. Our on-demand water heaters provide unlimited hot water while saving space and energy costs, making them an ideal upgrade for modern homes.
We specialize in installing and servicing all major brands including Rinnai, Rheem, Navien, and Bosch, ensuring you get the perfect instant water heaters solution for your household’s unique needs.


Unlike traditional tank systems, continuous flow water heaters heat water instantly as you use it. This means no more running out of hot water during long showers or when multiple people need hot water simultaneously.

Tankless systems only heat water when needed, eliminating standby heat loss that costs hundreds of dollars annually with tank systems. Most homeowners see 20-30% reductions in water heating costs.

Compact wall-mounted units free up valuable floor space in basements, utility rooms, or closets. Point-of-use water heaters can even be installed under sinks for instant hot water at specific locations.

Quality tankless systems last 15-20 years compared to 8-12 years for traditional tanks, providing better long-term value despite higher upfront costs.
Whole House Tankless Systems:These powerful units handle all your home’s hot water needs from a single location. We properly size gas line requirements and electrical requirements to ensure optimal performance.
Point-of-Use Units:Smaller units installed near specific fixtures provide instant hot water while reducing water waste. Perfect for distant bathrooms or kitchen sinks.
Condensing Tankless Heaters:These high-efficiency units capture additional heat from exhaust gases, achieving efficiency ratings over 90% and qualifying for energy star certification.


Successful tankless installation requires careful attention to several factors:
Water System Optimization: Tankless units require adequate water pressure and flow rates to operate efficiently, so we may recommendwater line installation or repair workto optimize your system’s performance.
Infrastructure Upgrades: To maximize your tankless water heater’s efficiency and ensure consistent performance, upgrading withmain water line replacement servicescan provide the water flow and pressure your system needs.
Gas Line Sizing:Most tankless units need larger gas lines than traditional tanks. We evaluate your existing gas supply and coordinate upgrades with gas utility companies when needed.
Electrical Requirements:Even gas units need electrical connections for controls and ignition. Some installations require electrical upgrade contractors for proper power supply.
Venting Systems:Proper venting ensures safe operation and optimal efficiency. We install appropriate venting materials and configurations for your specific unit.
Water Quality Considerations:Hard water can damage heat exchangers over time. We work with water quality specialists to recommend filtration when necessary.
Ready to upgrade to unlimited hot water and energy savings? Our experienced team provides professional tankless water heater installation with proper sizing, code-compliant installation, and ongoing maintenance support. We work with all major brands and help you take advantage of available rebates and incentives.
Call us today at +17164032478 for your free tankless water heater consultation and estimate.
Tankless water heater installation is just one component of our comprehensivewater services solutions, which include water line repair, main water line replacement, and all aspects of your home’s water delivery system.
If a tankless system isn’t the right fit for your home’s needs or budget, ourtraditional water heater installation options provide reliable hot water solutions with lower upfront costs.


Proper sizing ensures your system meets your household’s hot water demands:
Flow Rate Requirements:We calculate your peak hot water usage by adding up all fixtures that might run simultaneously. Most homes need 7-10 gallons per minute capacity.
Temperature Rise:The difference between incoming cold water and desired hot water temperature affects sizing. Cold climates require more powerful units.
Smart Controls:Modern units feature modulating technology that adjusts output based on demand, improving efficiency and comfort.
Regular maintenance keeps your tankless system running efficiently:
Annual Descaling:Hard water minerals can build up in heat exchangers, reducing efficiency. Professional descaling maintenance removes these deposits and maintains peak performance.
Filter Cleaning:Input filters protect internal components and should be cleaned regularly.
Venting Inspection:We check venting systems for blockages or damage that could affect operation.
Many annual maintenance providers offer service plans that include all necessary maintenance and priority service calls.


Take advantage of available savings programs:
Gas Utility Rebates:Many gas companies offer rebates for high-efficiency tankless installations.
Federal Tax Credits:Energy Star certified units may qualify for federal tax incentives.
Local Programs:Some areas offer additional rebate programs for energy-efficient upgrades.
We help you navigate all available rebate programs to maximize your savings.
FrequentlyAskedQuestions