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Tankless water heater installation cost

mhiplumbers • May 31, 2022

Tankless water heaters are a great alternative to traditional storage-tank water heaters. They come in gas, electric, and solar units and can be used in homes, businesses, and even RVs.


Tankless water heaters do not store water in a tank but instead heat water on demand, as it flows from the faucet. This means that you have access to hot water all day long, but you never run out of hot water.


The unit does this by heating cold water with an electrical element that is installed between the incoming supply pipe and the hot water pipe leading from the faucet.



The average cost of a tankless water heater depends on the size and efficiency of the unit you choose. Most models cost between $600 and $2,000 installed, but some can be as much as $4,000 to $10,000 or more.

The average cost for installation is around $750 to $1,500 but could be higher if additional work is needed during installation.

The cost will vary depending on several factors such as the type, manufacturer, size and retrofitting. Additional features like control panels or smart technology will also increase the cost of your system by hundreds of dollars or more.


Size –


Tankless water heaters come in different sizes and capacities. The size of your home and the number of people who will be using it will affect what size unit you need. If you live alone in a small apartment, you won’t need as much hot water as someone who lives with five other people in a large house.


Energy efficiency and fuel source –


Some tankless units use electricity, while others run on natural gas or propane gas (LPG). Electricity is generally considered more expensive than gas, but it also offers more consistent heat control and lower maintenance costs. Gas units are cheaper up front but have higher ongoing operating expenses than electric models since they require fuel tanks and lines for each individual unit.

Some units are more efficient than others when it comes to heating up water during peak hours (when electricity costs more). They’ll also save money on gas bills and maintenance costs over time since they don’t have as many moving parts as traditional units do (no moving parts means less wear and tear).


Efficiency rating –


The higher the efficiency rating, the better your unit will be at conserving energy while still providing hot water when you need it most.


Installation –


Installing a new tankless water heater isn’t difficult if you have some plumbing experience, but it does require some tools (pliers) and finesse (reaching into tight spaces).


Condensing unit or non-condensing units –


One factor that affects the total cost of your installation is whether you choose a condensing unit or non-condensing unit. Condensing units have an internal fan that pulls air from inside your home through the pipes into the heater before it heats it up again as it returns to your home after use.


This helps reduce energy loss through evaporation and makes these models more efficient when compared with non-condensing models that do not have this feature built in.

The Most Common Plumbing Problems in San Diego and How to Fix Them

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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