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Width: 14 Inches
Height: 21 Inches
Depth: 7 Inches

34 Pounds

Direct Electronic

Hot Water Capacity
0.6 to 5.6 GPM

Minimum Activation Rate
0.6 GPM

Minimum/Maximum Gas Rate (Input BTUs )
19,000 - 120,000 NG
20,200 - 120,000 LP

Energy Factor
0.82 for Natural Gas and Propane

Energy Star

Approved Gas Types
Natural Gas or Propane

Temperature Settings
120°F - 140ºF with MCC-91-2US

Type of Controller
Status Monitor (included)
MC-91-2US (optional)
MC-100V-1US Deluxe Controller (optional)
BC-100V-1US Bathroom Controller (optional)

Ultra Lox NOx

AC 120 Volts, 60 Hz

Electrical Consumption
Normal: 33 Watts
Standby: 2 Watts
Anti-Frost Protection: 74 Watts

Service Connections
Gas Supply: 3/4 Inch MNPT
Cold Water Inlet: 3/4 Inch MNPT
Hot Water Outlet: 3/4 Inch MNPT






   Rinnai V53e Propane Outdoor Tankless Water Heater – You’ll stop planning your mornings and evenings around your hot water heater and set your own schedule, thanks to the V53e. Some additional details about the Rinnai V53e Propane External Tankless Water Heater include: Ideal for one- to two-bathroom homes, the V53e delivers up to 5.3 gallons of hot water per minute (GPM) at a 35 degree temperature rise, while saving energy and money. Easy to install on the exterior of your home, the V53e frees up interior space and saves on installation and construction costs. The Rinnai V53e-LP exterior-mounted V Series, 5.3 GPM, Propane, .82 Energy Factor Tankless Hot Water Heater units are easy to install on the exterior of your home, the V53e frees up interior space and saves on installation and construction costs






PDF Consumer Sales Brochure PDF Installation Instruction
PDF Full Product Specification PDF Hot Water Design Manual


Rinnai Overview

Only Rinnai offers the quality and reliability that is built on a 45 year history of innovation and improvements. Rinnai commands quality through in-house design, engineering and manufacturing, and insures your satisfaction with in-house support.

Leading the industry. Around the world.

At Rinnai, we are fiercely committed to delivering nothing less than our absolute best. Our passion for constant improvement drives us to create incredibly innovative water heating and home heating gas appliances for both residential and commercial applications. As a result, our products have continued to lead the industry. In fact, sophisticated, efficient performance makes Rinnai Tankless Water Heaters some of the best tankless water heaters on the market.

Quality Standards

Throughout the world, our standards for quality remain unsurpassed. All factories are ISO 9001 and/or ISO 14001 certified. All products distributed in North America have been approved by the Canada Standards Association (CSA) and adhere to the strict standards of American National Standards Institute (ANSI).


But just as important as engineering and manufacturing a sound product is offering support both before and long after it’s installed. That’s why we’re here for professionals 24/7/365 with industry-leading warranties and a network of independent dealers trained on everything from product selection to installation and repair

Company History

Rinnai was founded in 1920 by Hidejiro Naito and Kanekichi Hayashi, who quickly established a tradition of constant improvement. They started by manufacturing and selling pressurized oil cooking stoves. By the early 1930s, they expanded into gas appliances, including cooking stoves, ranges and space heaters; and since 1964 Rinnai has been efficiently heating water. Today, more than 30 million Rinnai Tankless Water Heaters have been installed worldwide.

Established in 1974, Rinnai's North American operations continue to expand. In 2001, we opened our state-of-the-art distribution, research and training facility in Peachtree City, Georgia, and have since added training facilities in California.

As one of the world’s largest gas appliance manufacturers—with headquarters in Japan and a network of 20 branches and 86 sales offices in 13 countries—we have attained a truly global presence and perspective.

What is covered?

This Limited Warranty covers any defects in materials or workmanship when the product is installed and operated
according to Rinnai written installation instructions, subject to the terms within this Limited Warranty document.
This Limited Warranty applies only to products that are installed correctly. Improper installation may void this
Limited Warranty. Rinnai strongly suggests that you use a state qualified or licensed professional who has
attended a Rinnai installation training class before installing this water heater. This Limited Warranty extends to
the original purchaser and subsequent owners, but only while the product remains at the site of the original
installation. This Limited Warranty only extends through the first installation of the product and terminates if the
product is moved or reinstalled at a new location.



Product FAQ's


Q. Does a Rinnai Tankless Water Heater have a standing pilot?
A. No. Rinnai Tankless Gas Water Heaters have a direct-spark electronic ignition.

Q. What are the power supply requirements for a Rinnai Tankless Water Heater?
A. Rinnai Tankless Water Heaters require 120 volts AC, 60 Hz and less than three amps.

Q. Can I install a Rinnai Tankless Water Heater myself?
A. Rinnai recommends that tankless water heater installation should be performed by a licensed contractor who is trained to handle the plumbing, gas, electrical and venting aspects of a tankless water heater and is aware of all local and national codes. Having a non-licensed professional perform the installation can cause operational and performance issues.

Q. Can Rinnai Tankless Water Heaters be used on houseboats or RVs?
A. Unfortunately, our tankless water heaters cannot be used in houseboats or RVs. However, we have specific units available that are certified to be installed in Mobile and Modular Homes. These units include both our Luxury and Value Series units.

Q. Can a Rinnai Tankless Water Heater be used to heat a pool or spa?
A. Rinnai Tankless Hot Water Heaters cannot be used for heating pools or spas. The chemicals used would damage the components of the water heater.

Q. What is the life expectancy of a Rinnai Tankless Water Heater?
A. The life expectancy of a Rinnai Tankless Hot Water Heater is up to 20 years. Actual performance will vary depending on water quality, usage rates, environmental conditions, and regular maintenance.

Q. What is temperature rise?
A. The maximum flow rate that our tankless hot water heaters can produce depends on temperature rise — the difference between the set temperature of the unit and that of the incoming ground water. For instance, if you set the temperature of the unit to 120° F and the incoming groundwater temperature is 60° F, the temperature rise is 60°.
The lower the set temperature, and the higher the incoming groundwater temperature, the more hot water flow the unit can produce and vice versa. If sized correctly for your application, the unit(s) should not have a problem producing enough flow for your hot water needs.

Q. What is the minimum water flow required to operate a Rinnai Tankless Water Heater?
A. Please keep in mind that Rinnai Tankless Gas Water Heaters need to see a demand of over 0.4 to 0.6 gallons per minute of water flow through the hot side in order to ignite and 0.26 gallons per minute to stay in operation. If the flow rate falls below this level, the unit will turn off because it senses that hot water is no longer needed.
There are several possible solutions to minimum flow rate issues: lowering the temperature on the unit to a more comfortable temperature to avoid cutting in too much cold water; cleaning the inlet water filter on the cold water inlet of the unit (sediment buildup in the filter can decrease flow into the unit); cleaning or removing the aerators from showerheads or fixtures; or replacing low-flow showerheads or fixtures.
If you believe that this is not the issue, contact your original installer or plumber to service the unit.

Q. Can an external Rinnai Tankless Water Heater be used in cold climates?
A. Yes. Rinnai Tankless Water Heaters feature freeze protection for outside temperatures as cold as -22° F (-30° C) for indoor models or as cold as -4° F (-20° C) for outdoor models when protected from direct wind exposure, as long as there is both power and gas supply to the appliance. The pipes feeding the unit MUST be heat-traced and insulated to provide freeze protection.
Rinnai strongly recommends the installation of an optional drain-down system on units installed outside in cold climates. This system, if installed, will allow all water inside the unit to drain out if there’s a power and/or gas outage or a component failure in the product. See the owner’s manual for optional drain-down system piping.

Q. What types of fuel do Rinnai Tankless Water Heaters use?
A. Rinnai Tankless Water Heaters operate using natural gas or propane and have an electronic ignition.

Q. Do Rinnai Tankless Water Heaters have a UL Rating?
A. Rinnai Tankless Water Heaters are not UL certified, but are certified by CSA International to ANSI Z21.10.3 Standard Gas Water Heaters, Volume III, Storage Water Heaters with Input Ratings Above 75,000 Btu/h. However, the following internal electrical components are UL certified:
a. Transformer E (UL 1411) b. Relay (UL 41515) c. Wire & Conduit (UL 1430).

Q. Does Rinnai manufacture an electric tankless water heater?
A. We do not make an electric model. There are several potential drawbacks to electric tankless water heater units: First, the power requirements of electric units large enough to provide hot water for a typical household can be prohibitive. For example, a unit that can provide three gallons per minute with an 80° F temperature rise would require about a 150 amp 230VAC circuit. This is about eight times the power required for a three-ton central air conditioning system.
Second, the relative operating cost of electric tankless water heaters is much higher than gas water heaters. Based on national averages, electricity costs almost twice as much per BTU as natural gas. Even with propane, gas tankless water heaters are considerably less expensive to operate than those that run on electricity

Q. Does Rinnai offer a battery backup system?
A. We do not offer a battery backup system—also known as an Uninterrupted Power Supply (UPS)—for our products. Please check with your local retail store for a UPS that may be suitable for your needs

Q. Can a Rinnai Tankless Water Heater be installed in a mobile home?
A .We have specific tankless water heaters available that are certified for installation in Mobile and Modular Homes. These units include both our Luxury and Value Series units.

Q. What size gas line does a Rinnai Tankless Water Heater require?
A. Rinnai Tankless Water Heaters typically require a ¾" gas line to provide a sufficient gas supply to the unit’s burner. However, if there is sufficient pressure and the gas line is short enough, there are some cases where a ½" gas line can be used, which is the most common size used in the United States and Canada. This can make switching from a tank-style water heater to a tankless water heater faster, easier and less expensive.
As with all tankless water heater applications, installers should check and abide by local gas-pipe size and licensing rules and codes.

Q. Can a Rinnai Tankless Water Heater be converted to a different gas type?
A. Rinnai offers a limited Field Conversion Program. Kits for converting gas tankless water heaters from natural gas to propane or vice versa are available for most models. Please have your installer/service provider call 1-800-621-9419 to find out if your model qualifies and to obtain a detailed step-by-step conversion instruction kit.
These kits are available directly from Rinnai, and will be shipped only after the installer/service provider has contacted Rinnai’s technical support services and consulted one of our technical specialists, to ensure the installer/service provider performing the conversion is qualified to do so. The Field Conversion Program is available for products which have been installed and where gas type availability has changed. It will not be approved for use in conversion of non-sold inventory or mobile homes.




Mostly All Of Our Products Are Shipped Same Or Next Day

Your product will be mostly shipped using Freight Company such as SAIA, ESTES, Old Dominion, FEDEX or UPS and will be delivered in 1-5 business days depending upon your geographical location from our warehouses. We ship products from warehouses in NY, NJ, FL, CA,AZ, TX And MO. Mostly if you are close to our warehouses, you should receive the Product in 1-3 business days. We will email you your tracking number soon as its shipped out or you can log into your account on our website by using your email address and password you created at the time of placing order to check all the shipment and product details.
Please remember we only ship to 48 states within United States. Due to expensive shipment fee we do not ship to Hawaii & Alaska. We do not ship to Canada, Puerto Rico, Jamaica and other countries due to custom issues.

Though above shipment and delivery process is what we normally practice, under unforseen circumstances they cannot be guaranteed at all times. But we do our best and mostly succeed to ship the product either same or the next day.

Overnight Shipping Details (if required)

We can ship overnight or by Second Day Air. But beacuse these are air conditioners and the package weighs more than 90 pounds usually, shipping overnight can result in the package being mishandled and delivered damaged. Plus it cost anywhere from $180-$850 more than regular shipping depending upon your location from our warehouse. Feel free to email us with such enquiries.

Delivery Acceptance, Returns, Exchanges and Cancellation Policy.

We truly appreciate your business and for the past 2 decades being in this business we have continued to do our best to earn customer trust with each transaction. We want you to be happy with your purchase.

100% Satisfaction is guaranteed with all your purchases. In case any of the RARE complications occur, we will handle them upto your best interest and satisfaction.

Delivery Acceptance Terms:
If you receive a package that seems damaged or dented, please open the package in front of the driver and after inspection if you see the product has a severe damage you can refuse the package and call us immediately. We will then arrange a new shipment (Free Replacement) ASAP.

Please note: If the box looks visibly damaged, the product inside may still be in perfect condition as they are well padded for shipping purposes.

PLEASE DO NOT SIGN OR REFUSE THE PACKAGE WITHOUT INSPECTING THE CONDITION OF THE PRODUCT INSIDE. Please take pictures if needed, accept or refuse shipment based upon the condition of the product in the box, not based upon the condition of the box. Please remember if you signed off on a delivery document, insurance cannot be filed if cosmetic damage is found at a later date, as it is considered to have happened after delivery at jobsite.

If you need to get in touch with KINGERSONS, please call KINGERSONS customer service number at 1-386-951-1722 OR email us with your query. AS PER OUR WEBSITE, BELOW IS OUR EXCHANGE/RETURN POLICY FOR YOUR REFERENCE.

If unit (any product) is defective, depending upon the brand you buy, it will be taken care of by manufacturer warranty. Usually they will send out the replacement part within 24 hours, if replacing part is not a solution, they would probably replace the whole unit if the product was found defective. Replacement will only be made with the same model, if customer decides to upgrade or downgrade to a different model, we'll treat it as a return and a new order.

* All returns should be in original packaging and in brand new condition. Installed products are not considered brand new and cannot be returned.

* All damaged returns and replacements must be requested within 24 hours after the receipt of the product. *

Before shipping the product back, you should request an RA# (Return Authorization number), without an RA# your package will not be accepted, will be refused and sent back by the warehouse.

For all returns, customer is responsible to ship product back to our warehouse at their own expense; restocking fee of 19% will apply regardless if defective and original shipping fee (from $69 to $189 depending upon the product you purchased) will not be refunded as it is paid to the trucking company's and they are non-refundable.

If you placed the order and you wanted to cancel the order BEFORE IT IS SHIPPED, we will gladly cancel your order and $15.99 cancellation fee will be charged and 3% credit card processing charges will not be refunded. Please make sure that you call us within few hours after the order is placed. We ship the items out same or next business day. We cannot process cancellations after the product is shipped out. It will be considered as a return instead once the product is shipped and you will need to pay the return charges. If the delivery of the shipment is refused above return policy will apply. Once the item is shipped, the shipping company will not refund us the shipping fee back and will charge us for shipping both ways, this will not be refunded if cancelled after the product is shipped and 19% restocking fee will apply.


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