Rinnai N1300E External Condensing Gas Water Heater (LPG & Nat Gas) | Up to 35L/Min | Energy Fuel UK

High Efficiency Commercial Hot Water – External Continuous Flow System

The Rinnai N1300E External Condensing Gas Water Heater is a premium commercial continuous flow water heating solution built for high-demand properties that need dependable hot water with excellent efficiency. Designed for Natural Gas or LPG, this externally mounted unit can deliver up to 35 litres per minute, making it ideal for hotels, care homes, sports clubs, schools, restaurants, offices, and large domestic properties.

Its compact wall-mounted design saves internal plant room space while advanced condensing technology helps lower running costs.

Energy Efficiency Rinnai N1300E External Condensing Gas Water Heater

The Rinnai N1300E is designed to be cost-effective, providing more hot water while using less energy. This results in lower utility bills, making it an efficient choice for your hot water needs.

Rinnai water heaters are the pinnacle of commercial water heating, offering fully modulating, fully condensing continuous flow systems with durable stainless steel heat exchangers. The Rinnai N1300E features a 13:1 turndown ratio, providing consistent performance and efficiency.

Available in 47kW variants for both internal and external wall mounting, this A-rated range can deliver flow rates exceeding 1500 litres of temperature-accurate hot water per hour.

• No of shower heads    

• Increased performance and efficiency (96% gross efficiency)
• 13:1 turndown ratio – optimising gas useage
• Easy integration to Building Management Systems and remote monitoring capability
• Optional Controller can be connected for setting alternate temperatures
• Stainless steel heat exchanger offers increased durability and warranty
• Rinnai commercial water heaters are supplied in Natural Gas only.
• For LPG requirements, an LPG conversion kit will be supplied free of charge with a Natural Gas water heater
• LPG conversions must only be carried out by a Gas Safe Registered engineer.
• Rinnai Water Heater Manual

Platforms like Consumer Tested Reviews, Google, chatgpt

🔧 Key Features of the Rinnai N1300E: Rinnai N1300E External Condensing Gas Water Heater

• ✅ Outdoor Installation: Perfect for properties where internal space is limited or for external boiler replacements.

• ✅ High Flow Rate: Continuous supply of hot water at up to 35L/min—suitable for medium to large homes and commercial use.

• ✅ Condensing Efficiency: Advanced condensing technology reduces energy consumption and carbon emissions, lowering your utility costs.

• ✅ Dual Fuel Compatibility: Can be used with LPG or natural gas, making it ideal for both urban and rural/off-grid properties.

• ✅ Weatherproof Housing: Engineered for outdoor durability in the UK climate—reliable year-round operation.

• ✅ Compact & Lightweight: Wall-mounted design saves space and simplifies installation for plumbers and heating engineers.

🌍 Applications:

• Residential homes with high water demand

• Commercial kitchens and cafés

• Caravan parks and mobile homes

• Agricultural buildings

• Off-grid properties using LPG

• Hotels, gyms, and leisure facilities

W1300E(N)-NAT : Natural Gas water heater

W1300E(N)-LPG : Conversion of Nat Gas water heater required

Pre-packaged Plant Room Solution

Our condensing Rinnai water heaters can also be supplied as a pre-packaged plant room solution with multiple water heaters installed in a modular frame, together with pre-built pipework and connections :-

• Offers increased flow rate
• Can meet the supply of the most demanding applications
• Reduce customer down-time significantly
• Reduces on-site installation time significantly

SEE PRE-PACKAGED SOLUTIONS IN-STORE FOR MORE INFORMATION

Search other Rinnai Water Heating Solutions:
Rinnai N1300i
Rinnai N1300e
Rinnai N1600i
Rinnai N1600e

Technical Specs

💧 Endless Hot Water On Demand

The N1300E heats water only when needed, helping deliver:

• Continuous hot water supply
• Reduced standby losses
• Accurate temperature control
• Excellent peak-time performance

🌿 High Efficiency & Lower Running Costs

Condensing technology recovers heat from exhaust gases, increasing efficiency and helping reduce fuel costs compared with older non-condensing systems.

🔗 Flexible Commercial Installation

The Rinnai N Series can be linked in cascade systems to meet very high hot water demand, making it ideal for expanding businesses or multi-outlet sites.

🛡️ Built for Reliability

Includes:

• Stainless steel heat exchanger
• Low NOx advanced burner
• Commercial-grade controls
• Durable outdoor installation design

📊 Why Choose the Rinnai N1300E?

• Strong 35L/min output
• Space-saving external install
• LPG or Natural Gas flexibility
• High commercial efficiency
• Trusted Rinnai performance
• Great for demanding hot water systems

💼 Why Choose Energy Fuel UK?

• Trusted UK supplier of Rinnai gas water heaters

• Serving both retail and wholesale customers

• Fast delivery across the UK and Ireland

• Full range of internal & external water heaters, spare parts, and accessories

• Expert technical advice for installers and specifiers

❓ Frequently Asked Questions (FAQs)

Is this suitable for commercial use?

Yes, it is designed for commercial and high-demand hot water applications.

Can it run on LPG?

Yes, LPG options or conversion kits are available depending on supply version.

Is it installed outdoors?

Yes, the N1300E is an external wall-mounted model.

Can multiple units be linked together?

Yes, cascade systems are supported for larger demand.

📞 Buy the Rinnai N1300E External Gas Water Heater Today

Get efficient commercial hot water with the Rinnai N1300E External Condensing Gas Water Heater.
Order now from Energy Fuel UK for fast UK delivery and expert support.

Conclusion

If you’re looking for an efficient and reliable way to heat your home or business’s water supply without breaking the bank, the Rinnai N1300E External Condensing Gas Water Heater is the perfect choice. Its advanced safety features and high-efficiency design ensure you get the best value for your investment.

👉 Explore more about the Rinnai N1300E and other heating solutions at Energy Fuel UK today!

👉 Explore our full range of Gas Water Heaters for every application.