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How much does a tankless water heater cost?

mhiplumbers • May 26, 2023

The cost of a tankless water heater can vary depending on several factors, including the brand, model, capacity, and installation requirements.


On average, a tankless water heater can cost anywhere between $500 to $2,500 or more.


Higher-end models with advanced features and larger capacities tend to be more expensive.


Different brands offer varying levels of quality, features, and warranties, which can affect the cost. Popular brands with established reputations may have higher prices compared to lesser-known brands.


The size or capacity of a tankless water heater is determined by the flow rate or the amount of hot water needed at any given time. This is measured in gallons per minute (GPM).

To determine the appropriate size for your needs, you should consider the following factors:

Peak hot water demand:

Calculate the maximum amount of hot water you would require at any given time. This depends on the number of fixtures (showers, sinks, appliances) that may be running simultaneously in your household.

Temperature rise:

Determine the temperature rise needed to reach your desired hot water temperature. This is the difference between the temperature of the incoming cold water and the desired hot water temperature. For example, if the incoming water is 50°F and you want your hot water to be 120°F, the temperature rise is 70°F.

Flow rate:

Consider the flow rate of the fixtures/appliances you use simultaneously. Each fixture has a specific flow rate, typically measured in gallons per minute (GPM). Add up the flow rates of the fixtures that may run concurrently to determine the total flow rate required.


Once you have these values, you can choose a tankless water heater with the appropriate capacity.


It’s essential to select a unit that can meet your peak hot water demand and provide the necessary temperature rise for your desired hot water temperature.

Installation requirements:

The installation of a tankless water heater may involve additional costs, such as venting modifications, electrical or gas line upgrades, and professional installation fees.


These factors can vary based on the complexity of the installation, any necessary modifications to existing plumbing or electrical systems, and labor costs in your area.


It’s recommended to consult with a professional plumber or heating contractor to assess your specific needs and provide accurate cost estimates.


We can assess your specific needs and recommend the appropriate size and model for your household.


If you live in the San Diego or Riverside County areas, contact MasterCraft Plumbers so we can give you an accurate cost estimate for the equipment and installation based on your requirements and local market conditions.


Contact us today at (760) 640-0337.

16 Jul, 2024
Living in San Diego comes with its unique set of plumbing challenges. From the hard water that can wreak havoc on your pipes to the occasional droughts that strain water resources, homeowners here face various plumbing issues. In this article, we'll explore some of the most common plumbing problems in San Diego and provide tips on how to fix them. We'll also help you understand when to call in a professional. 1. Clogged Drains Problem: Clogged drains are a frequent issue in many San Diego homes. They can occur in sinks, showers, and bathtubs, often due to the buildup of hair, soap scum, grease, and food particles. DIY Fix: Plunger: For minor clogs, a plunger can often do the trick. Ensure enough water is in the sink or tub to cover the plunger’s cup, and give it several firm plunges. Drain Snake: A drain snake (or auger) can break up the blockage for more stubborn clogs. Insert the snake into the drain and turn the handle to push it through the clog. Baking Soda and Vinegar: Pour a cup of baking soda and vinegar down the drain. Let it sit for about 15 minutes, then flush with hot water. When to Call a Professional: If you’ve tried these methods and the clog persists, it’s time to call a plumber. Persistent clogs can indicate a more severe issue in your main sewer line. 2. Leaky Faucets Problem: Leaky faucets are annoying and can also waste significant water, driving up your water bill. The cause is usually worn-out washers or seals. DIY Fix: Turn Off Water Supply: Before starting any repair, turn off the water supply to the faucet. Replace Washers and O-rings: Disassemble the faucet handle and replace any worn washers or O-rings. These parts are inexpensive and can be found at most hardware stores. Reassemble Faucet: Once the new parts are in place, reassemble the faucet and turn the water supply back on. When to Call a Professional: If the faucet continues to leak after you’ve replaced the washers and O-rings, the issue may be more complex, such as a corroded valve seat. A professional plumber can diagnose and fix the problem. 3. Low Water Pressure Problem: Low water pressure can frustrate daily tasks like showering and washing dishes. It’s often caused by the buildup of mineral deposits in pipes or fixtures, leaks, or issues with the municipal water supply. DIY Fix: Clean Aerators and Showerheads: Mineral deposits can clog aerators and showerheads, reducing water pressure. Remove these fixtures and soak them in vinegar overnight to dissolve the deposits. Check for Leaks: Inspect your plumbing system for leaks. Even a small leak can significantly reduce water pressure. Pressure Regulator: Ensure that your home's pressure regulator (if you have one) is set correctly. Adjust it if necessary. When to Call a Professional: If cleaning aerators and checking for leaks doesn’t solve the problem, there may be a more severe issue, such as a problem with the main water line or pressure regulator. A plumber can diagnose and fix the issue, restoring your water pressure to normal levels. 4. Running Toilets Problem: A running toilet can waste a lot of water, usually caused by a faulty flapper, fill valve, or overflow tube. DIY Fix: Inspect Flapper: Check the flapper to see if it’s worn or misaligned. If it's not sealing correctly, water will continuously flow into the toilet bowl. Replace the flapper if necessary. Adjust Fill Valve: Ensure the fill valve functions correctly and adjust the float arm if the water level is too high or too low. Replace Overflow Tube: If the overflow tube is cracked or damaged, it must be replaced. When to Call a Professional: If you’ve replaced the flapper and adjusted the fill valve, but the toilet still runs, a more complex issue may require professional attention. Conclusion While many common plumbing problems in San Diego can be fixed with a bit of DIY effort, some issues require the expertise of a professional plumber. Knowing when to tackle a problem yourself and when to call in a pro can save you time, money, and frustration. If you’re ever in doubt, don’t hesitate to contact a reliable San Diego plumbing service to ensure your home’s plumbing system remains in top condition.
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Welcome to the world of home plumbing! This guide is designed to help you understand the basic layout and components of your home's plumbing system. Whether you're a new homeowner in San Diego or someone interested in home maintenance, knowing plumbing basics can help you manage minor repairs, make informed decisions, and communicate effectively with professionals when needed.
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