Rinnai N1300e 47 kW External Gas Water Heater | LPG & Natural Gas

Rinnai N1300e external gas water heater

The Rinnai N1300e 47 kW External Gas Water Heater is a commercial continuous-flow water heating system designed for installations requiring a reliable supply of hot water without relying solely on a large storage cylinder.

Part of the Rinnai N Series commercial water heater range, the N1300e combines 47 kW gas input, Low-NOx burner technology, a stainless-steel primary heat exchanger and a 13:1 turndown ratio. Rinnai specifies a maximum water flow of up to 35 L/min, depending on operating conditions.

The externally mounted design makes the N1300e suitable for professionally designed commercial hot-water systems where indoor plant-room space is limited.

Key Features

• 47 kW commercial gas water heater
• External installation
• LPG and Natural Gas configurations available
• Up to 35 L/min maximum water flow
• Low-NOx burner technology
• Stainless-steel primary heat exchanger
• 13:1 turndown ratio
• Continuous-flow hot-water production
• Accurate temperature control
• Cascade capability for higher hot-water demand
• Powerful fan-assisted flue system
• Suitable for commercial hot-water installations
• Rinnai N Series commercial technology

47 kW Commercial Continuous-Flow Water Heating

The Rinnai N1300e is designed to produce hot water when required, making it suitable for commercial properties with changing or substantial hot-water demand.

Rinnai lists the N1300e at 47 kW and up to 35 litres per minute maximum water flow. The manufacturer also specifies approximately 775 litres per hour at a 50°C temperature rise for the N1300 range.

Actual hot-water flow depends on factors including incoming water temperature, required outlet temperature, water pressure and installation configuration.

Low-NOx Gas Water Heating

The N1300e incorporates Rinnai’s Low-NOx burner technology, helping the appliance meet modern emissions requirements while providing continuous hot-water performance.

The appliance is designed for commercial installations where efficient combustion, reliable temperature control and consistent hot-water delivery are important.

Stainless-Steel Heat Exchanger

The N1300e uses a stainless-steel primary heat exchanger designed for durability in commercial hot-water applications.

Combined with the appliance’s modulation system, the heat exchanger and burner technology allow the water heater to respond to changing hot-water demand.

13:1 Turndown Ratio

Rinnai specifies a 13:1 turndown ratio for the N Series.

This allows the heater to modulate its operation according to hot-water demand rather than operating continuously at maximum output. This is particularly useful in commercial applications where demand can vary significantly throughout the day.

Up to 35 L/min Hot-Water Flow

The Rinnai N1300e can deliver up to 35 L/min, subject to the operating conditions of the installation.

For projects with greater demand, multiple N Series units can be configured in a cascade system. Rinnai specifically supports cascading multiple water heaters to increase available hot-water capacity.

LPG and Natural Gas Options

The Rinnai N1300e is available in configurations for:

• LPG
• Natural Gas

Select the correct gas configuration for the installation before ordering. Gas type, pressure, commissioning requirements and local regulations must be confirmed by the qualified installer.

Commercial Applications

The Rinnai N1300e can be considered for professionally designed commercial hot-water systems such as:

• Hotels and hospitality properties
• Restaurants and commercial kitchens
• Cafés and food-service premises
• Leisure centres
• Gyms and sports facilities
• Schools and educational facilities
• Healthcare and care facilities
• Commercial accommodation
• Industrial premises
• Other high-demand hot-water installations

The correct number of units should be determined from the property’s peak hot-water demand and required temperature rise.

External Installation

The N1300e is the external version of the Rinnai N Series 1300 commercial water heater.

Its external configuration can help free valuable indoor plant-room space. Rinnai also states that the N Series can be wall mounted or installed using a cascade frame for larger systems.

Installation must follow the manufacturer’s installation instructions, ventilation/flue requirements and applicable regulations in the country where the appliance is installed.

Cascade Hot-Water Systems

For larger commercial projects, multiple Rinnai N1300e water heaters can be connected in a cascade configuration.

A correctly designed cascade system can provide increased hot-water capacity while allowing the system to respond to changing demand.

This makes the N1300e suitable for projects where a single water heater may not provide sufficient peak capacity.

Technical Specifications

Specifications should always be checked against the exact gas configuration, current Rinnai documentation and the installation requirements applicable to the destination country.

Rinnai N1300e vs N1600e

The Rinnai N Series includes different capacity options for commercial hot-water applications.

The N1300e is rated at 47 kW and up to 35 L/min, while the larger N1600e is rated at 58 kW and can produce up to 37 L/min under standard conditions. Rinnai also lists the N1600e at approximately 954 L/h at a 50°C temperature rise.

For projects with particularly high peak demand, a qualified designer can assess whether a larger unit or cascade arrangement is more appropriate.

Professional Installation

The Rinnai N1300e is a commercial gas appliance and must be installed, commissioned and serviced by appropriately qualified professionals.

Before purchasing, the installer or heating-system designer should confirm:

• Required gas type
• Gas supply pressure and capacity
• Peak hot-water demand
• Incoming water temperature
• Required outlet temperature
• Available water pressure
• Flue requirements
• Condensate requirements where applicable
• External installation requirements
• Local gas and building regulations
• Whether a single unit or cascade system is required

Do not attempt to install or modify the appliance without the appropriate professional qualifications.

Buy Rinnai N1300e 47 kW Water Heater in Europe

EuroFuelSupply supplies heating, hot-water and energy products to customers across supported European markets.

The Rinnai N1300e 47 kW External Gas Water Heater is suited to commercial projects requiring continuous-flow hot-water production, Low-NOx technology and scalable installation options.

For larger projects, contact EuroFuelSupply for product availability, quantity requirements and commercial enquiries.

Frequently Asked Questions

What is the Rinnai N1300e?

The Rinnai N1300e is an externally mounted commercial continuous-flow gas water heater in Rinnai’s N Series.

How powerful is the Rinnai N1300e?

The N1300e has a maximum gas input of approximately 47 kW.

How much hot water can the N1300e produce?

Rinnai specifies up to 35 L/min maximum water flow for the N1300e, depending on operating conditions.

Is the Rinnai N1300e available for LPG?

Yes. Rinnai lists the N1300e in LPG and Natural Gas configurations. The correct version must be selected for the installation.

Is the N1300e a Low-NOx water heater?

Yes. The N Series uses Rinnai Low-NOx burner technology.

Can the Rinnai N1300e be installed outside?

Yes. The N1300e is the external configuration of the Rinnai N Series 1300 commercial water heater.

Can multiple N1300e water heaters be connected?

Yes. Rinnai supports cascade configurations for applications requiring greater hot-water capacity.

Is the N1300e suitable for hotels and restaurants?

It can be suitable for commercial hospitality and food-service applications when correctly sized and professionally installed for the property’s hot-water requirements.

What is the N1300e flow rate at a 50°C temperature rise?

Rinnai lists the N1300 range at approximately 775 litres per hour at a 50°C temperature rise.

Does the N1300e require professional installation?

Yes. Gas, water, flue and electrical installation requirements must be handled by appropriately qualified professionals and comply with applicable local regulations.