logo

The 5 Best Tankless Water Heaters for a Large Family and Home

mhiplumbers • May 26, 2023

When it comes to choosing the best tankless water heater for a large family and house, there are several factors to consider such as the flow rate, temperature rise, and the number of fixtures that will be using hot water simultaneously


To determine the maximum hot water flow rate, consider the number of bathrooms, showers, sinks, and appliances. For some large homes and families, you may have to have two units installed to properly serve hot water throughout the home.


Many units allow you to connect two tankless units to operate as one.


Look for tankless water heaters with a high flow rate and energy efficiency rating. Energy-efficient models can help you save on utility bills in the long run. Look for heaters with an Energy Factor (EF) rating, with higher values indicating greater efficiency.


Consider the physical dimensions of the unit and ensure it can fit in the available space. Also, check if it requires any specific installation requirements, such as ventilation or electrical considerations.


Research different brands and read customer reviews to get an idea of their reliability, durability, and customer satisfaction.

Here are a few recommendations based on capacity and performance:

Noritz EZTR75 11.1-GPM 199000-BTU Indoor Tankless Water Heater

The Noritz EZTR75 11.1-GPM 199000-BTU Indoor Tankless Water Heater is a high-performance and efficient appliance designed to provide hot water on demand. With its advanced features and capabilities, it offers a reliable solution for residential and commercial applications.

One of the key features of the Noritz EZTR75 is its impressive flow rate of 11.1 gallons per minute (GPM), which means it can deliver a continuous supply of hot water for multiple outlets simultaneously.

With a maximum BTU (British Thermal Units) rating of 199,000, the EZTR75 is capable of quickly heating water to the desired temperature. This high BTU rating allows for fast recovery times, meaning you won’t have to wait long for hot water, even during periods of high demand.

Rinnai RUR199iN Condensing Tankless Hot Water Heater, 11 GPM:

The Rinnai RUR199iN is a high-performance tankless water heater designed to provide efficient and endless hot water supply for residential and light commercial applications. Manufactured by Rinnai, a renowned brand in the water heating industry, the RUR199iN is known for its advanced features, reliability, and energy-saving capabilities.

With a maximum flow rate of 11 gallons per minute (GPM), the RUR199iN is capable of delivering a continuous supply of hot water to multiple fixtures simultaneously.

Furthermore, the RUR199iN incorporates built-in freeze protection to prevent damage to the unit in cold climates. It can withstand temperatures as low as -22°F (-30°C), safeguarding the water heater and ensuring it operates reliably in harsh winter conditions.

In terms of installation, the Rinnai RUR199iN offers versatile venting options, including both concentric and twin-pipe PVC, allowing for flexibility and ease of installation in various settings. It also features a compact and space-saving design, making it suitable for both indoor and outdoor installation.

Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM

The Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation is an advanced and high-performance water heating system designed to provide efficient and continuous hot water supply for residential applications.

With a flow rate of 11.0 gallons per minute (GPM), this tankless water heater is capable of meeting the demands of larger households or properties with high hot water usage.

The Rheem Prestige Condensing Tankless Water Heater is powered by liquid propane (LP), making it suitable for areas where natural gas is not readily available. It features electronic ignition, ensuring reliable and easy startup without the need for a pilot light.

Rheem RTGH-95DVLN 9.5GPM

This natural gas tankless water heater has a high flow rate and is suitable for larger households. It provides continuous hot water and has a 9.5 GPM (gallons per minute) capacity.

Rheem’s models automatically adapt the energy required to heat the water you need, resulting in increased efficiency and reduced energy consumption. This advanced technology ensures that the right amount of energy is used, optimizing the heating process.

Rheem is committed to promoting better air quality by incorporating emission reduction technology in their products. All Rheem models meet or surpass the strict government standards set in all 50 states, guaranteeing cleaner air for your environment.

Controlling your Rheem tankless water heater is easy and convenient. With the tankless remote electronic thermostat, you can effortlessly adjust the water temperature between 85˚F–140˚F, in precise two-degree increments.

The unit can be turned on or off with a simple press of the power button. Moreover, the system provides detailed diagnostics digitally displayed whenever there is a need for service or maintenance, ensuring prompt attention to any issues that may arise.

Navien NPE-240S-NG 11.2 GPM

The Navien NPE-240S-NG is a high-efficiency condensing gas tankless water heater. It is a popular choice among homeowners and commercial users for its energy efficiency, compact design, and reliable performance.

One of the standout features of the Navien NPE-240S-NG is its condensing technology. It utilizes a dual stainless steel heat exchanger that captures and reuses the heat from flue gases, allowing for maximum energy efficiency.

With a maximum input of 199,900 BTU per hour, the NPE-240S-NG is capable of delivering a continuous supply of hot water for various applications, including showers, faucets, and appliances. It has a flow rate of up to 11.2 gallons per minute, ensuring that multiple water outlets can be used simultaneously without a drop in performance.

Tankless water heaters may require professional installation due to their specific requirements, such as gas lines or electrical connections. Ensure that you have the necessary infrastructure and consult with a professional to determine the feasibility and cost of installation.

Remember, it’s essential to consult with a professional plumber or technician who can assess your specific needs and provide personalized recommendations based on your household’s requirements.

Need some assistance?

MasterCraft Plumbers will detremine factors such as household size, hot water demand, space availability, and budget for the best tankless water heaters for your large family and home.

We have locations in Carlsbad and Murrieta, Ca. serving both San Diego and Riverside Counties.

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.
18 Jun, 2024
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.
More Posts
Share by: