Rinnai N1600i Internal Condensing Gas Water Heater (LPG & Natural Gas) – 42L/Min | Energy Fuel UK
Looking for a high-capacity, energy-efficient gas water heater? The Rinnai N1600i Internal Condensing Gas Water Heater is a powerful hot water solution that delivers up to 42 litres per minute, making it ideal for large domestic properties, commercial facilities, hotels, gyms, and multi-bathroom households.
At Energy Fuel UK, we offer the Rinnai N1600i for wholesale and retail, with fast delivery across the UK and Ireland. Whether you’re an installer, M&E contractor, or homeowner, this condensing water heater is a reliable, cost-effective investment in your heating system.
PRODUCT DESCRIPTION:
N1600i Rinnai Internal Condensing Gas water heater (42L/Min)
The Rinnai N1600i is a powerful and efficient water heater that offers turndown ratios of 13:1 and many other innovative features. This internal low-NOx condensing gas water heater is available in 59.7kW variants for both internal and external use, providing an endless supply of hot water with minimal energy consumption.
The N1600i is designed to be renewables-ready, and features advanced safety systems such as flame failure protection and overheat protection, making it one of the safest water heaters on the market.
In addition to its impressive performance, the N1600i has been designed with convenience in mind. Its compact size allows for easy installation in tight spaces, while its intuitive control panel makes it easy to adjust settings according to your needs.
For those looking for a reliable and efficient water heater that won’t break the bank, the Rinnai N1600i is an excellent choice. With its advanced safety systems, renewable energy compatibility and impressive performance, this water heater is sure to provide years of reliable service.
Rinnai water heaters are the pinnacle in commercial water heating, offering fully modulating, fully condensing, continuous flow using stainless steel heat exchangers.
This unique water heater design offers turndown ratios of 13:1 and has many other new and exciting features. Available in 59.7kW variants for both internal and external wall mounting, the range is A-rated and can offer flow rates of 2,100 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
- Extended flue runs of 45+ metres
- In-built controller for temperature setting and fault diagnostics
- 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
🔥 Key Features of the Rinnai N1600i:
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✅ Ultra High Flow Rate: Delivers up to 42 litres/minute of continuous hot water for heavy-duty demand environments.
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✅ Condensing Technology: Lower carbon emissions and reduced energy bills with industry-leading condensing efficiency.
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✅ Dual-Fuel Compatible: Suitable for LPG and natural gas installations—flexible for both urban and off-grid properties.
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✅ Space-Saving Design: Compact wall-mounted unit for internal installation—ideal for commercial kitchens, sports facilities, and large homes.
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✅ Durability & Reliability: Proven performance from Rinnai’s trusted engineering—long life span and low maintenance.
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✅ Smart Controls: Digital temperature control and built-in safety features for user-friendly operation.
🌍 Perfect For:
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Multi-bathroom homes
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Restaurants, cafés, and hospitality venues
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Commercial kitchens
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Gyms and leisure centres
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Hotels, B&Bs, and care homes
W1600i(N)-NAT : Natural Gas Water Heater
W1600i(N)-LPG : Conversion of Natural gas water heater required
Pre-packaged Plant Room Solution
Our condensing water heaters can also be supplied as a pre-packaged plant room solution with multiple Rinnai 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
| Installation | Internal |
|---|---|
| Fuel | Natural Gas or LPG* |
| Control | Modulating |
| Temperature Range | 40, 42, 50, 55, 60, 65, 75, 85 |
| Gas consumption – LPG | 58.4 kW max |
| Exhaust type | Internal – forced room sealed – Concentric |
| Ignition | Electronic |
| Burner | Stainless steel |
| Low NOx | Less than 20ppm |
| Weight | 28kg |
| Water flow rate | 1.5** to 42L/min |
| Minimum operating pressure | 1.0 Bar |
| Noise level | 41 db(A) |
| Connections (Gas – Water inlet – Water outlet) | 3/4 bsp |
| Connections (Condense outlet) | 3/4 bsp |
| Electrical Supply | 230 AC 50Hz 1ph |
| Gas Usage | Natural Gas – 5.6m³/h, LPG – 4.2kg/hr |
💡 Why Choose Energy Fuel UK?
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National supplier of Rinnai gas water heaters
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Competitive prices for wholesale and retail
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UK-wide and Ireland delivery
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Expert technical support and aftercare
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Full range of spares, accessories, and heaters available
👉 View all Gas Water Heaters on our website.
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