---
product_id: 116638294
title: "Rinnai V53DeN Natural Gas Tankless Water Heater - 5.3 GPM, Outdoor Installation"
brand: "rinnai"
price: "$3225"
currency: NZD
in_stock: true
reviews_count: 8
category: "Rinnai"
url: https://www.desertcart.nz/products/116638294-rinnai-v53den-natural-gas-tankless-water-heater-5-3-gpm
store_origin: NZ
region: New Zealand
---

# 82% energy efficiency 5.3 GPM endless hot water 10-year heat exchanger warranty Rinnai V53DeN Natural Gas Tankless Water Heater - 5.3 GPM, Outdoor Installation

**Brand:** rinnai
**Price:** $3225
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade to endless hot water and energy savings—because your home deserves the best!

## Quick Answers

- **What is this?** Rinnai V53DeN Natural Gas Tankless Water Heater - 5.3 GPM, Outdoor Installation by rinnai
- **How much does it cost?** $3225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/116638294-rinnai-v53den-natural-gas-tankless-water-heater-5-3-gpm)

## Best For

- rinnai enthusiasts

## Why This Product

- Trusted rinnai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last a Decade:** Backed by a 10-year heat exchanger warranty, ensuring reliable, maintenance-light performance for years.
- • **Endless Hot Water Flow:** Serve up to 4 appliances simultaneously with a powerful 5.3 GPM flow rate—never run out during peak demand.
- • **Eco-Smart Energy Savings:** Only heats water on demand, slashing utility bills and reducing your carbon footprint effortlessly.
- • **Space-Savvy Outdoor Design:** Compact wall-mounted unit fits snugly in tight outdoor spaces—perfect for modern homes craving efficiency.
- • **Pro-Recommended Installation:** Optimized for safety and performance with professional setup; find certified Rinnai PROs near you for hassle-free service.

## Overview

The Rinnai V53DeN is a high-efficiency natural gas tankless water heater delivering 5.3 gallons per minute of continuous hot water. Designed for outdoor wall-mount installation, it supports up to four appliances simultaneously while conserving energy by heating water only when needed. Compact and durable, it features a 10-year warranty on the heat exchanger and advanced technology for long-lasting, low-maintenance operation—ideal for energy-conscious homeowners seeking reliable comfort.

## Description

Experience the ultimate in home comfort with the Rinnai V53DeN tankless hot water heater. This high-performance, gas-powered unit delivers endless hot water, boasting an impressive flow rate of 5.3 GPM. Its compact design makes it ideal for both new home buyers and families, seamlessly fitting into various spaces without sacrificing efficiency. This durable, energy-efficient hot water heater only heats water when needed, helping you save on utility bills while maintaining optimal performance. Designed with advanced technology, the Rinnai tankless water heater extends the lifespan of your system and lessens maintenance with enhanced scale detection features. Ideal for households of all sizes, this powerful tankless hot water heater offers a consistent water pressure to serve up to four appliances simultaneously. For convenience, professional installation is recommended, and a strong warranty backs this reliable system: enjoy a 10-year warranty on the heat exchanger, 5 years for labor, and 1 year on parts. Keep your home running smoothly with the Rinnai tankless hot water heater, an investment in comfort and sustainability. Experience the smart choice for hot water—perfect for today’s energy-conscious consumers.

Review: Amazing Product - I've waited nearly 2 months before I wrote a review. Here's my summary: 1. The installation is easy if you are replacing an existing unit, I replaced dual tank water heaters and relocated the tankless heater closer to the majority of the water users in the house so the installation was more time consuming and difficult. The instruction manual is awesome, take the time and read thru it (prior to buying) and follow it strictly. I bought a gas fired unit, had the gas company come out and validate the inlet pressure and ran all the calculations recommended. Installation took 4 days since I had to run additional gas piping, extend hot and cold water lines and install the vent piping to the exterior. 2. After you've read the manual, plan your installation carefully (vent, water in, water out, gas piping in, power). These all converge around the unit which isn't large and will take planning to make it fit and functional. Purchase all the vent pipe ($$$), water piping, gas piping, and valves for the unit (the bundle of all of these are not inexpensive) 3. The unit fired up after the second try (it had to vent the air out of the gas line on the first attempt). The start up was very easy. 4. My wife likes HOT water, the unit is delivered with a maximum of 120 degree output. I queried the internet and found the program button sequence to get it to 140 degrees. It worked instantly, but after an hour the unit reset back to 120 degrees and the process wouldn't let me place it back to 140 degrees. I called the service desk and gave my number for a call back. 30 minutes later, the call came in. The service tech asked a few questions so she knew which unit I had purchased and then I communicated to her what I had experienced. She told me that the code I had used was for a different unit and she directed me step by step how to program the unit. (I had the panel open and performed as she told me each step). It took 30 seconds and the unit has worked correctly ever since. 5. The closer the unit is to the usage point the faster the water heats up, so don't have expectations that you'll get instantaneous hot water when there is 20+ feet of cold water in the pipe that has to be pushed out by the hot water, but it does heat the water extremely fast and it's on the way as soon as you open the hot water faucet!
Review: Very good unit. Tricky install. Need special vent pipes, not your old ones. - The piping that, in my case went up through the crawl space, then through the roof was tricky to install. Ordered all new pipe after measuring carefully and cataloging the fittings I'd need (45's, 90's, and so on). Make sure to order the right diameter double-walled pipe. Look online. I ordered online and the company actually shipped the same day, and it came the next, which is nice if, like me, you are without hot water in the interim. S. Brewer's review is excellent. He covers all the crucial points very well. He explains clearly what you will be faced with if you decide to DIY the job. It was challenging. When you get to the point of lifting the unit up to hang it on the wall while simultaneously marrying it to the vent pipe, a second set of hands would be a major plus. I did it myself, but a second set of hands would be real boon at that point. I was able to use the existing hole in the roof, but, as it turned out, the contractor who built the house preferred to cut a gigundo hole in the roof instead of doing the geometry to accurately predict the penetration location and hole size. To compensate, I created a plywood insert with a proper hole cut into it, pre-drilled the screw holes, and then used light cord to pull the "mask" up from above, up on the roof. Once I had it placed properly, I used a right-angle drill to drive in the screws from underneath. Don't forget that you'll need a flashing unit on the roof to make a good waterproof seal, and also some roofing tar to further seal it. Be careful when lifting the shingles to slip the flashing unit under them to avoid breaking them. If you do some minor damage to the surrounding shingles, use the roofing tar to compensate. Once installed, the unit works very nicely with the caveat that it does not seem possible to set the temperature above 120°F. That's really sufficient, but my old unit was set at 125°F. Not a deal breaker. If you've not had an on-demand heater before, be aware that when running hot water, there's a lag before you actually get hot water. With this unit about 20' from the kitchen sink, that's about 30-45 seconds before the water warms up. Overall, very happy to have hot water again, and this unit outperforms the previous, larger capacity unit it replaced. Install a phosphor filter upstream from the unit to reduce maintenance flushing. Do install the valve set that will later permit de-scaling the boiler tank. This is important for the longevity of the installation. TIP: use the woven steel, flexible pipes to connect the unit to gas, inlet, and outlet pipes. These are much easier to work with than their copper counterparts, which are hard to bend-- MUCH easier. Good luck. If you prepare well ahead of actually doing the job, you will greatly reduce the stress factor in carrying out the actual installation. Do your homework. YouTube is your friend. ... and DO read S. Brewer's excellently written and potentially very helpful exposition on the entire process of installing these units. p.s. If you need hot water in a hurry at your taps, you'll want to spend the extra spondoolix for the unit with a recirculating pump: it's a luxury, but if you prefer faster delivery of hot water to your taps, you'll want that version of the heater. Cheers, N.

## Features

- Unlimited Hot Water For Your Family: Enjoy endless hot water with our Rinnai tankless hot water heater, providing a flow rate of 5.3 GPM to serve up to 4 appliances; Say goodbye to cold showers and hello to convenience with this efficient unit
- Energy Efficiency At Its Best: This compact gas tankless water heater conserves energy by heating water only when needed, making it an earth-friendly choice for energy-conscious homeowners; Reduce utility bills and enjoy hot water as needed
- Peace Of Mind With Long-Lasting Performance: The Rinnai tankless hot water heater offers a 10-year warranty on the heat exchanger, ensuring durability; Enjoy uninterrupted hot water flow without worrying about frequent repairs
- Compact And Space-Saving Design: Our outdoor tankless hot water heater is designed for modern homes, ideal for families and new homeowners; Its small footprint allows easy installation in tight spaces without sacrificing performance
- User-Friendly And Easy Installation: We recommend professional installation for the best results, ensuring safe operation of this on demand water heater; Visit our Rinnai PRO page to find a qualified technician near you

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MH3C76M |
| Batteries Required? | No |
| Best Sellers Rank | #72,343 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #99 in Water Heaters |
| Brand | Rinnai |
| Color | Euro White |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,803) |
| Date First Available | December 27, 2018 |
| Efficiency | 0.82 |
| Finish | V53DeN - Natural Gas/5.3 GPM |
| Global Trade Identification Number | 00766156011795 |
| Heat Output | 81 Kilowatts |
| Included Components | Water Heater |
| Is Electric | No |
| Item Depth | 7.9 in / (202 mm) |
| Item Package Quantity | 1 |
| Item Weight | 33 pounds |
| Item model number | V53DeN |
| Manufacturer | Rinnai |
| Maximum Flow Rate | 5.3 Gallons Per Minute |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Measurement System | Metric |
| Mounting Type | Wall |
| Part Number | V53DeN |
| Pattern | Heater |
| Product Dimensions | 18 x 18 x 31.2 inches |
| Size | 5.3 GPM |
| UPC | 766156011795 |
| Voltage | 120 Volts |
| Warranty Description | Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts) |
| Wattage | 81000 watts |

## Product Details

- **Brand:** Rinnai
- **Capacity:** 5.3 Gallons
- **Color:** Euro White
- **Power Source:** Gas Powered
- **Wattage:** 81000 watts

## Images

![Rinnai V53DeN Natural Gas Tankless Water Heater - 5.3 GPM, Outdoor Installation - Image 1](https://m.media-amazon.com/images/I/517xsuL7FQL.jpg)

## Questions & Answers

**Q: Is this the outdoor unit? The pictures show both the outdoor and indoor unit.**
A: If you have access to 120v AC power outlet you’ll be able to use this unit. I purchased the 120v unit it located is my shop bathroom.

**Q: Does this come with installation parts? Or just the tank?**
A: You will need assorted valves and pipes to complete the installation.

**Q: mine is a R85 renaul tankless which one will be the same plumbing?**
A: The plumbing pipes are the same on all our units.  --Tashay

**Q: Can I use this with 1/2 water lines?**
A: Yes you can adapt to 1/2" water lines, works fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing Product
*by E***N on April 11, 2023*

I've waited nearly 2 months before I wrote a review. Here's my summary: 1. The installation is easy if you are replacing an existing unit, I replaced dual tank water heaters and relocated the tankless heater closer to the majority of the water users in the house so the installation was more time consuming and difficult. The instruction manual is awesome, take the time and read thru it (prior to buying) and follow it strictly. I bought a gas fired unit, had the gas company come out and validate the inlet pressure and ran all the calculations recommended. Installation took 4 days since I had to run additional gas piping, extend hot and cold water lines and install the vent piping to the exterior. 2. After you've read the manual, plan your installation carefully (vent, water in, water out, gas piping in, power). These all converge around the unit which isn't large and will take planning to make it fit and functional. Purchase all the vent pipe ($$$), water piping, gas piping, and valves for the unit (the bundle of all of these are not inexpensive) 3. The unit fired up after the second try (it had to vent the air out of the gas line on the first attempt). The start up was very easy. 4. My wife likes HOT water, the unit is delivered with a maximum of 120 degree output. I queried the internet and found the program button sequence to get it to 140 degrees. It worked instantly, but after an hour the unit reset back to 120 degrees and the process wouldn't let me place it back to 140 degrees. I called the service desk and gave my number for a call back. 30 minutes later, the call came in. The service tech asked a few questions so she knew which unit I had purchased and then I communicated to her what I had experienced. She told me that the code I had used was for a different unit and she directed me step by step how to program the unit. (I had the panel open and performed as she told me each step). It took 30 seconds and the unit has worked correctly ever since. 5. The closer the unit is to the usage point the faster the water heats up, so don't have expectations that you'll get instantaneous hot water when there is 20+ feet of cold water in the pipe that has to be pushed out by the hot water, but it does heat the water extremely fast and it's on the way as soon as you open the hot water faucet!

### ⭐⭐⭐⭐⭐ Very good unit. Tricky install. Need special vent pipes, not your old ones.
*by N***N on November 12, 2022*

The piping that, in my case went up through the crawl space, then through the roof was tricky to install. Ordered all new pipe after measuring carefully and cataloging the fittings I'd need (45's, 90's, and so on). Make sure to order the right diameter double-walled pipe. Look online. I ordered online and the company actually shipped the same day, and it came the next, which is nice if, like me, you are without hot water in the interim. S. Brewer's review is excellent. He covers all the crucial points very well. He explains clearly what you will be faced with if you decide to DIY the job. It was challenging. When you get to the point of lifting the unit up to hang it on the wall while simultaneously marrying it to the vent pipe, a second set of hands would be a major plus. I did it myself, but a second set of hands would be real boon at that point. I was able to use the existing hole in the roof, but, as it turned out, the contractor who built the house preferred to cut a gigundo hole in the roof instead of doing the geometry to accurately predict the penetration location and hole size. To compensate, I created a plywood insert with a proper hole cut into it, pre-drilled the screw holes, and then used light cord to pull the "mask" up from above, up on the roof. Once I had it placed properly, I used a right-angle drill to drive in the screws from underneath. Don't forget that you'll need a flashing unit on the roof to make a good waterproof seal, and also some roofing tar to further seal it. Be careful when lifting the shingles to slip the flashing unit under them to avoid breaking them. If you do some minor damage to the surrounding shingles, use the roofing tar to compensate. Once installed, the unit works very nicely with the caveat that it does not seem possible to set the temperature above 120°F. That's really sufficient, but my old unit was set at 125°F. Not a deal breaker. If you've not had an on-demand heater before, be aware that when running hot water, there's a lag before you actually get hot water. With this unit about 20' from the kitchen sink, that's about 30-45 seconds before the water warms up. Overall, very happy to have hot water again, and this unit outperforms the previous, larger capacity unit it replaced. Install a phosphor filter upstream from the unit to reduce maintenance flushing. Do install the valve set that will later permit de-scaling the boiler tank. This is important for the longevity of the installation. TIP: use the woven steel, flexible pipes to connect the unit to gas, inlet, and outlet pipes. These are much easier to work with than their copper counterparts, which are hard to bend-- MUCH easier. Good luck. If you prepare well ahead of actually doing the job, you will greatly reduce the stress factor in carrying out the actual installation. Do your homework. YouTube is your friend. ... and DO read S. Brewer's excellently written and potentially very helpful exposition on the entire process of installing these units. p.s. If you need hot water in a hurry at your taps, you'll want to spend the extra spondoolix for the unit with a recirculating pump: it's a luxury, but if you prefer faster delivery of hot water to your taps, you'll want that version of the heater. Cheers, N.

### ⭐⭐⭐⭐⭐ Durable if you maintain it
*by C***. on December 29, 2024*

Installed this in November 2018. Been hassle free, working perfectly since then. Love the endless hot water, and being able to refill the hot tub with hot water is great. We have extra hard water, so I flush it with 3 gallons of pure food grade vinegar every 6 months. This is critical, but also really easy, once you set up isolation valves and get a good little pump and a 5 gallon bucket. I flush with the heat on, set to lowest temp, only takes 20 min to run clear. New instructions say to run it cold with heat off, last unit we had in 2001 said to let it heat the vinegar for faster cleaning. Not an easy DIY install, especially the gas line upgrade. I had to run 60ft of 1 inch gas line at the last house, was a difficult job. Many cities don't allow homeowner gas line work, I got lucky and was able to get permits in 2 cities over the years. Vent kit install was fairly easy, out a side wall, cut a big hole in the wood rim joist. Needed to drill and saws all through 6 inches of wood, took a while, but pretty basic. You need to do a lot of planning and make sure your vent is not too close to a window. Check with your city first to learn their requirements, they can vary a bit. Lots of plumbing had to be moved/replaced, as we moved the location about 8 ft away from the old one. Even with all the work, the payoff is worth it. Endless hot water, lower gas bill, and about an extra closet of floor space gained. That was huge in a small living space.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*