Top Installation and Repair Examples for Tankless Water Heaters in San Diego

Image of tankless water heater used in San Diego

Tankless Water Heater Installation in San Diego

Tankless water heaters from companies like Noritz, Navien, Rheem and Rinnai dominate the market for gas and electric tankless water heater installation for residential and commercial spaces throughout San Diego County, according to Gabriel Carini, President of Carini Heating, Air and Plumbing. These leading brands account for much of the tankless water heater repair industry throughout the country. Each target different segments of the market based on pricing and technical features. Many models from these leading vendors qualify for PACE funding based on their energy efficient qualities and specifications. Companies offering PACE funding to homeowners in California include Ygrene and the HERO Program.  Carini Heating, Air and Plumbing is an approved plumbing contractor for both of these funding programs.

Top electric tankless water heater installation applications

“Tankless heaters are sometimes referred to as demand type water heaters, “said Carini. “Since they provide hot water only as it is needed, home and business owners can realize large savings in their utility bills compared to conventional “Tank” type water heaters.”

There are a variety of scenarios where tankless water heaters help homeowners save money. Depending on the size of the home, it’s possible that multiple units might be required to handle different appliances – like washers and dryers; or if you are needing hot water at the same time in different parts of the house.

Carini explains that some of the typical residential and commercial applications for tankless water heaters include single family whole house water heating, multi-family residential, point-of-use water heating, retail, restaurants, beauty salons and offices.

Top 5 tankless water heater repairs

Some of the most common repairs on tankless water heaters include:

  • Build up of Minerals

Faucet with hard water damage

San Diego has hard water – similar to 85% of U.S homes. The two main components that cause hard water are calcium and magnesium, and their presence inside a tankless water heater can cause lots of damage if not properly addressed.  A once-per-year water flush is recommended to protect against damage.





  • Too many users – an overloaded system

There are things you can do – reduce water usage, reset the unit periodically, or consider upgrading to a larger capacity unit. And don’t forget about adding recirculating pumps

  • Error messages about air supply or exhaust blockage

Your tankless hot water heater could be experiencing problems related to combustion air or improper venting

  • No Ignition Message

For some reason, the hot water heater is attempting to ignite, but it’s not happening. This kind of problem is often related to a gas supply or venting issue.

  • Error message about flame failure

This could be a problem with gas pressure; your gas line could be too small; the regulator could be failing; or it could be caused by combustion problems or venting.

Interesting info on tankless water heater companies in San Diego

Rheem Tankless, tank and hybrid (heat pump) Water Heaters

Carini Hybrid Water Heater San Diego from Rheem

Rheem has a broad line of both gas and electric tankless water heaters.  Gas models are recommended for endless hot water in homes with luxury bathrooms and vacation homes.

For on demand hot water  for a single faucet or shower, Rheem provides its line of electric tankless products. Programmable timers and wireless controls are available.
Click here for how to read your Rheem water heater warranty label and find the age of your Rheem tank, tankless or heat pump / hybrid water heater:

Navien Tankless Water Heaters

How Navien Tankless Water Heaters work


Click here for a useful article that describes the way to tell the age of a Navien tankless unit:


Noritz Tankless Water Heaters

Click here for the simple way to learn the age of your Noritz tankless system:

For more information about electric tankless water heater repair and installation in San Diego, please contact Carini Heating, Air and Plumbing, 619-843-0997;

# # #





Are Tankless Water Heaters the Spotify of the Appliance Industry? We Examine Five Main Similarities and Benefits

Spotify logo and Noritz tankless water heaters

Spotify announced last month that it will begin offering political coverage and news to expand on its already dominant market share in the music streaming market.

Similarly, the market for tankless water heaters is expected to experience more growth in North America than all other global markets in the next six years.

As big fans of both of these products, we at Carini got to asking: just how similar are these two industry innovators?

1) Limitless Hot Water

Tank-based water heaters offer a finite amount of hot water. Just like Spotify’s endless streaming, tankless water heaters provide limitless hot water by heating only the water that flows through them from pipes they’re connected to. Say goodbye to cold showers because another family member used all the hot water!

2) Tankless Water Heater Installation Increases Efficiency and Reduces Costs

In a traditional tank-based water heater, the tank heats water all the time. With a tankless unit, the water is only heated when you need it, which means you save money and energy. We love being as efficient and cost effective with our water usage as we are in our music streaming and discovery!

3) Twice the Life Expectancy of Storage Water Heaters

Most tankless units last about 20 years, which is double the life expectancy for tank-based units. Tankless water heaters are already the norm in Europe and Japan – only time will tell if they make traditional heaters obsolete in the US like Spotify has done to CD sales.

4) Tankless Design Saves You Space

Traditional water heaters’ large storage tanks make them inconvenient and cumbersome to place in your home. Because tankless units don’t have tanks, they’re much smaller. They’ll save you space just like Spotify’s cloud saves you space on your hard drive!

5) Recirculation Pumps Give Instant Hot Water

We love how Spotify Discover adapts to our music taste. With new technologies like smart recirculation systems, now our water heaters can learn our preferences, too!

These systems learn your peak water usage times and begin heating the water just before you need to use it. This way, there’s no wait time for hot water.

The top manufacturers of tankless water heaters include Navien, Noritz, Rinnai and Rheem.

drain cleaning service San Diego

Don’t Do It Yourself, San Diego! 5 Mess-Ups That Show Why You Need a Drain Cleaning Service

Many residents of America’s finest city think they can save money on drain cleaning by renting a snake or using drain cleaner instead of consulting a San Diego drain cleaning service. However, using an experienced drain cleaning company means you’ll get vital expertise to evaluate many factors and make sure your repair is properly executed.

The age, material, and length of your pipes, as well as clog type and possibility of sewer inspection camera, are all intricately interrelated and therefore best interpreted by an expert. So-called quick fix solutions like Drano and other drain cleaners are less effective and acidic and harmful to the environment.

Avoid These Scenarios By Calling a San Diego Drain Cleaning Company!

1) Sewer Snake in the Pipes

Our plumbing manager Ron helped a client who had rented a sewer snake from home depot to unclog their drain. Due to improper use, 100 feet of cable became stuck underneath asphalt. “Two days of downtime were necessary to dig up the ground, remove the cable and put the pipes back together,” says Ron. Total repair cost $9000.

2) Blown Pipe from Botched Clogged Drain Remedy

Another former client of Ron’s rented a jetting machine and used it on extremely old pipes in an attempt to remedy a persistent clog. “The client blew up a sewer line underneath concrete,” he said. “They didn’t know for two months that it was broken until water began seeping up from it.” Total repair cost: $8000

3) Wrong Sewer Snake

Choosing the wrong snake for a job can also lead to costly repairs. “I helped a gentlemen who had used too powerful of a snake and destroyed the drain fittings under his home,” said Ron. “We had to replace numerous damaged fittings and it was a real headache for everyone.” Total repair cost: $2000

4) Clogged Toilet Catastrophe!

Even using the right size snake can be an issue if it’s not right for particular fixture. “I can still remember the disappointment on this homeowner’s face when she saw that her husband had turned the inside of their toilet black by pushing a sewer snake down it. The porcelain was severely damaged and they had to purchase a new toilet.” Total replacement cost: $700

5) Possible Danger

“An electric drain snake can also be super dangerous if it catches your arm, hand or clothing,” he said. “The last thing I would want is a customer to hurt themselves doing something that would be quick and affordable to contact a drain cleaning company for.”


The Age of a Navien Tankless Water Heater from its Serial Number

Different tankless water heaters a consumer might have installed by San Diego plumbers, include Navien, Noritz, Rheem and Rinnai. Each have there own system of listing things like the age of the unit on the warranty data plate.

A Navien data plate looks like the photo below. See the number between two letters in the middle of the serial number? On this unit, the number “14” shown between “C” and “X”  says this particular tankless water heater was manufactured in 2014.

Navien data plate shows tankless water heater age







Here’s a data plate from a Noritz Tankless Water Heater:

noritz data plate shows tankless water heater age









If you experience a problem with your Navien tankless water heater, the age of the system is one of the first places to start in determining what to do next.  System age will help determine warranty coverages if any, options for upgrades, such as installing recirculating pumps ( and the average amount of time you might expect for the remaining useful life of the system.

For more information about Tankless Water Heaters in San Diego, contact: Carini Heating, Air and Plumbing, 619-843-0997;

new air conditioner financing

New 100% Financing with No Upfront Payments, No Payments Until December 2018!

Carini Heating, Air and Plumbing is very excited to offer an all-new financing program, available for purchases of all Carini products. The new financing program allows customers to purchase the industry’s most energy efficient heating and air conditioning products with the following key benefits:

1. No upfront payments
2. Eligibility based on property equity – not credit reports
3. 100% financing
4. No payments until December 2018
5. Allows purchase of heating and air products now, avoiding manufacturer price increases
6. Payments are incorporated into and repaid over time through property taxes with terms of up to 30 years, depending on service area and type of improvement

Our new financing program is offered through our partner, Ygrene. Ygrene Energy Fund is a national leader in residential and commercial clean energy financing. Founded in 2010, Ygrene’s award-winning, privately funded Property Assessed Clean Energy (PACE) program is revolutionizing the home improvement industry, making it easier for property owners to invest in their futures and a healthier environment.

For more information about how to use our new PACE Financing, please contact our Design Specialists at 619-843-0997 – or view our video about financing a new heating or air conditioning system.

How to Know the Age of Noritz Tankless Water Heaters

The serial number of the Noritz Tankless Water Heater is at the bottom of the data plate on the unit. The first four digits  are the year it was manufactured.  The month, shown here at “06,” mean June. The fifth and sixth digits indicate the month. So the date of manufacture for the serial number shown on this Noritz Water Heater Data Plate, as indicated “2006 06,” is  June 2006.

Shout out to Mcgarry and Madsen from Florida for this useful info.

If you are experiencing problems with your Noritz tankless water heater, the age of the system can tell a lot about your options for repair or replacement. The age of the system can tell you about remaining (if any) warranty coverage, the availability of different types of upgrades, such as installing recirculating pumps (;  and how many years you could expect to have in the remaining life of the system.

For more information about Tankless Water Heaters in San Diego, contact: Carini Heating, Air and Plumbing, 619-843-0997;

Carini Heating, Air and Plumbing


San Diego, CA


Best San Diego Rebates on Energy Saving Rheem Hybrid Water Heaters

Heat Pump Water Heaters Ideal for San Diego Home, Business and Multi-family Applications

San Diego home and business owners may be familiar with energy saving mini split heat pumps for their heating and air conditioning.  But many residents are just learning about the same kind of energy saving benefits they can realize with the latest generation of Hybrid Water Heaters, also called Heat Pump Water Heaters. Like their mini split heat pump cousin, Heat Pump Water Heaters use electricity to power components by drawing ambient heat from the air, and then transferring that heat to the tank.

$250 SDG&E Rebate and up to $500 in Federal Tax Credits

Along with great energy saving capabilities, San Diego’s local Utility, SDG&E is offering a $250 instant rebate on the Rheem model PROPH50 T2 RH350, an Energy Star rated system available in 50, 65 and 80 gallon capacities. And these units also qualify for up to a $500 Federal Tax credit.  Processing both of these rebates is quick and easy, and Carini Heating, Air and Plumbing, can guide homeowners through the rebate process.

Rheem hit the market with the first heat pump water heater in 2009. Their unique and innovative design featured the industry’s first water heater with a full-color touch-screen control, giving users a powerful backlit touch-screen control.  The touch-screen provides homeowner service alerts on a variety of states and potential problems. These controls also allow Carini Heating, Air and Plumbing service techs to receive detailed, text-based diagnostic data, enhancing our ability to more quickly solve problems and recommend troubleshooting and maintenance solutions.

Carini Hybrid Water Heater San Diego Rebates from SDG&E and Federal Tax Credits









For more information about rebates on Rheem Hybrid Water Heaters, also called Heat Pump Water Heaters for San Diego residents, contact Carini Heating, Air and Plumbing, 619-843-0997;;

# # #


How to Tell the Age of a Rheem Water Heater

If you’re a San Diego home or business owner with a Rheem water heater, there is a variety of useful information located on the Rheem water heating product label. If you ever need to call us to evaluate a repair or discuss installation of a Rheem water heater, you probably want to start with the age of the system.

Here’s an example of a Rheem water heater ten digit serial number and what each digit means:

Serial Number 12 09 D 01234

In this example,”12″ means the month manufactured – December. “09” indicates the year manufactured – 2009. Rheem’s headquarters are in Atlanta, GA, with manufacturing plants in Fort Smith, Montgomery, AL; Oxnard, CA; and Egan, MN for the United States; a plant in Quebec for Canada; and a plant in Mexico.

Consider that Rheem has three primary water heater models that we sell, install and service in San Diego: Tank, tankless and heat pump/hybrid. On all models, the serial number on all Rheem water heating product rating labels use ten (10) digits, and are located as follows in the images below:

Rheem tank water heater serial number locator san diego

The age of a Rheem tankless water heater is on the product label

Rheem heat pump or “hybrid” water heaters have 10 digit serial number

Rheem tankless water heaters place the serial number in the inside of the heater body on the right side.

Serial number plates for Rheem heat pump water heaters are located on a label on the upper left side of the system.





For more information about Rheem water heater installation, repair or maintenance agreements in San Diego, contact Carini Heating, Air and Plumbing at 619-843-0997;;

# # #