Rinnai N1600e 58.4kW External Low NOx Condensing LPG Water Heater

The Rinnai N1600e LPG Water Heater is a high-performance 58.4kW external commercial condensing water heater designed for businesses requiring powerful, reliable and continuous hot-water delivery.

Built for external installation, the Rinnai N1600e combines advanced condensing technology with a stainless-steel primary heat exchanger, Low NOx burner technology and a 13:1 turndown ratio.

The N1600 commercial platform can provide approximately 954 litres of hot water per hour at a 50°C temperature rise, making it an excellent option for demanding commercial applications such as hotels, restaurants, commercial kitchens, gyms, leisure centres, schools, healthcare facilities and other high-demand premises.

Available from Energy Fuel UK for individual purchases, commercial projects and bulk orders.

Why Choose the Rinnai N1600e LPG Water Heater?

The Rinnai N1600e external water heater is engineered for businesses where reliable hot water is critical.

Instead of relying solely on large quantities of stored hot water, its continuous-flow design heats water according to demand.

Key advantages include:

• 58.4kW commercial performance
• LPG operation/configuration
• External installation
• Condensing continuous-flow technology
• Stainless-steel primary heat exchanger
• Low NOx burner technology
• 13:1 turndown ratio
• Approx. ±1°C temperature control
• High-volume commercial hot water
• Quiet operation
• Cascade capability
• Compact wall-mounted design
• Suitable for demanding commercial installations

Rinnai specifically highlights the N1600e’s stainless-steel primary heat exchanger, Low NOx technology, 13:1 turndown and cascade capability.

58.4kW Commercial LPG Water Heating

The Rinnai N1600e LPG provides commercial-class water-heating performance for premises where domestic water heaters may not provide sufficient capacity.

Rinnai’s commercial N Series information rates the N1600 platform at approximately 954 litres per hour at a 50°C temperature rise.

Actual hot-water output depends on operating conditions, including incoming water temperature, required outlet temperature and available water pressure.

External Installation – Save Valuable Indoor Space

One of the major advantages of the Rinnai N1600e is external installation.

Businesses with limited plant-room or internal space can position the appliance externally, subject to professional installation requirements.

The official Rinnai specification identifies the N1600e as an externally installed condensing instantaneous water heater with direct forced exhaust.

This makes it particularly attractive for commercial premises where indoor space is valuable.

Commercial LPG Solution

The LPG configuration makes this product especially relevant to businesses and commercial properties where mains Natural Gas isn’t the preferred fuel option.

This can include appropriately designed installations serving:

• Rural commercial premises
• Hotels and accommodation
• Holiday parks
• Restaurants
• Commercial kitchens
• Sports facilities
• Leisure centres
• Agricultural premises
• Commercial and industrial facilities

Fuel compatibility and installation requirements should always be confirmed with an appropriately qualified installer.

Low NOx Commercial Water Heating

The N1600e incorporates Low NOx burner technology.

Rinnai identifies Low NOx technology as one of the major features of its commercial N Series, alongside its stainless-steel heat exchanger and high modulation capability.

This makes the N1600e an attractive modern replacement or new-installation option for commercial premises requiring LPG continuous-flow hot water.

Stainless-Steel Primary Heat Exchanger

Commercial equipment can experience substantially greater operating demands than typical domestic appliances.

Rinnai equips the N1600e with a stainless-steel primary heat exchanger, designed to support durability and long-term commercial operation.

13:1 Turndown Ratio

The 13:1 turndown ratio enables the appliance to modulate according to hot-water demand.

Rather than simply operating at full capacity whenever hot water is requested, modulation allows output to respond to changing demand.

This is particularly valuable in commercial properties where water usage can vary considerably throughout the day.

Ideal Applications for the Rinnai N1600e LPG

Hotels & Hospitality

Hotels can experience simultaneous hot-water demand from guest rooms, kitchens, cleaning operations and other facilities.

The high-output N1600 platform can form part of a professionally designed commercial hot-water system capable of addressing these requirements.

Restaurants & Commercial Kitchens

Restaurants, cafés and commercial kitchens depend on consistent hot-water availability.

Continuous-flow commercial water heating can provide hot water according to demand without relying entirely on a conventional large storage system.

Gyms & Leisure Centres

Showers and changing facilities can create significant periods of peak hot-water demand.

Multiple N Series appliances can also be cascaded where greater capacity is required.

Schools & Educational Facilities

Schools, colleges and other educational facilities can use significant amounts of hot water across kitchens, washrooms, showers and cleaning facilities.

Commercial & Industrial Applications

The N1600e can also be considered for other professionally designed commercial hot-water applications where high output, LPG operation and external installation are required.

Cascade Multiple Rinnai N1600e Water Heaters

For large commercial projects, the N1600e isn’t necessarily limited to operating as a single appliance.

Rinnai states that multiple N Series water heaters can be cascaded to accommodate greater hot-water demand.

This creates a scalable solution for larger:

Hotels • Leisure centres • Commercial kitchens • Healthcare facilities • Sports complexes • Multi-shower facilities • Industrial premises

System sizing should be performed by a qualified professional based on calculated peak demand.

Rinnai N1600e LPG Technical Specifications

The official Rinnai documentation confirms the N1600e’s external configuration, while the N Series information specifies 954 L/hr at a 50°C rise for the 58kW N1600 platform.

Accurate Temperature Control

Commercial applications frequently require predictable water temperatures.

Rinnai states that its N Series provides temperature-controlled hot water with accuracy of approximately ±1°C of the set point under appropriate operating conditions.

This is particularly valuable for hospitality, commercial kitchens, sports facilities and other applications where consistent hot-water temperatures are important.

Energy-Efficient Condensing Technology

The N1600 range carries an A energy-efficiency class with an XXL load profile, according to Rinnai’s commercial range information.

Condensing technology is designed to recover additional heat that would otherwise be lost, helping the appliance make more effective use of its fuel.

Actual energy consumption and running costs will depend on usage patterns, system design, temperatures and installation conditions.

Rinnai N1600e vs N1600i

Customers frequently confuse these two models.

Rinnai N1600e: External installation
Rinnai N1600i: Internal installation

Rinnai’s technical documentation explicitly identifies the N1600i as the internal model and N1600e as the external model.

This comparison is worth keeping on the product page because it answers a common purchasing question while naturally incorporating relevant search terms.

Buy Rinnai N1600e LPG Water Heater UK

Looking to buy a Rinnai N1600e LPG Water Heater in the UK?

Energy Fuel UK supplies commercial water-heating equipment to businesses, contractors and commercial projects.

Whether you require one N1600e or multiple water heaters for a cascade installation, contact our team for availability, accessories and commercial quotations.

Why Buy from Energy Fuel UK?

• Competitive commercial pricing
• Individual and bulk orders
• Commercial project quotations
• LPG and Natural Gas water-heating options
• Water-heater accessories available
• UK commercial enquiries welcome
• Wholesale heating products available

Your wholesale page already specifically promotes LPG, Natural Gas, condensing and Low NOx commercial water heaters, so this should be one of the strongest internal links from the product page.

Professional Installation

Commercial LPG equipment must be properly selected, installed and commissioned.

Installation should be carried out by an appropriately qualified professional in accordance with current regulations and Rinnai’s installation requirements.

Before purchasing, the installer should verify the property’s:

• LPG supply requirements
• Peak hot-water demand
• Water pressure
• Required temperature rise
• Installation position
• Electrical requirements
• Number of simultaneous outlets
• Requirement for single or cascade operation

Frequently Asked Questions

What is the Rinnai N1600e LPG?

The Rinnai N1600e is an externally installed commercial condensing continuous-flow water heater. The LPG configuration is designed for appropriately specified LPG installations.

Is the Rinnai N1600e installed outside?

Yes. The N1600e is the external model. Rinnai’s N1600i is designed for internal installation.

What is the capacity of the Rinnai N1600e?

Rinnai specifies approximately 954 litres per hour at a 50°C temperature rise for its N1600 commercial platform.

Is the N1600e suitable for LPG?

Yes. Rinnai’s technical specifications cover LPG gases including propane/butane configurations, subject to the correct appliance configuration and installation.

Is the Rinnai N1600e Low NOx?

Yes. Low NOx burner technology is one of the core features Rinnai specifies for the N1600e.

Can several N1600e water heaters work together?

Yes. Rinnai states that multiple N Series appliances can be cascaded to meet greater hot-water demand.

Is the Rinnai N1600e suitable for hotels?

It can be suitable for hotels and other high-demand commercial premises when professionally sized according to peak hot-water requirements.

Where can I buy a Rinnai N1600e LPG water heater?

The LPG model is available through Energy Fuel UK. Commercial buyers can also request quotations for multiple units.

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