Rinnai 17i 35 kW LPG Gas Water Heater with Horizontal Flue Kit

Rinnai 17i LPG gas water heater

The Rinnai 17i 35 kW LPG Gas Water Heater is a compact internal instantaneous water heater designed to provide continuous hot water without a traditional storage tank. The W17i-LPG configuration is suitable for LPG installations and combines room-sealed operation, electronic ignition, Low-NOx technology and a horizontal flue configuration.

With hot-water flow of up to 17 L/min under specified operating conditions, the Rinnai 17i is suitable for homes, apartments, guest accommodation, restaurants, cafés, care facilities and other applications requiring dependable on-demand hot water.

Key Features

• Rinnai 17i LPG instantaneous water heater
• 35 kW-class LPG gas water heating
• Up to 17 L/min flow under specified conditions
• Internal wall-mounted installation
• Forced room-sealed combustion system
• Horizontal flue configuration
• Low-NOx technology
• Direct electronic ignition
• Adjustable hot-water temperature
• Compact 541 × 373 × 173 mm design
• Approx. 14.5 kg appliance weight
• Built-in frost protection
• Continuous-flow hot-water operation
• Suitable for domestic and light-commercial applications

Rinnai 17i LPG Water Heater Performance

The Rinnai 17i is designed to heat water as it is required rather than storing a large volume of heated water in a cylinder.

Rinnai’s specification identifies the W17i-LPG model for LPG applications and gives a maximum flow rate of 20 L/min, with a stated hot-water delivery capacity of approximately 12.3 L/min at a 33°C temperature rise. Actual flow depends on incoming water temperature, desired outlet temperature, gas supply and water pressure.

For commercial product listings, the commonly marketed 17 L/min figure should therefore be understood as a flow-rate reference under specified conditions rather than a fixed 17-litre tank capacity.

Low-NOx LPG Gas Water Heating

The Rinnai 17i uses Low-NOx combustion technology designed to limit nitrogen oxide emissions from the appliance.

This makes the 17i relevant for customers searching for:

• Low-NOx LPG water heaters
• LPG instantaneous water heaters
• Rinnai tankless water heaters
• Internal LPG gas water heaters
• Multipoint LPG water heaters

The Rinnai specification lists NOx emissions at approximately 50 mg/kWh for the 17i.

Horizontal Flue Configuration

This product is intended for an internal installation with a horizontal flue arrangement.

The 17i uses a forced room-sealed flue system and an 80/125 mm flue specification. Rinnai’s technical information lists a maximum flue run of 6.5 m, subject to the specified reduction for 90° bends and the manufacturer’s installation requirements.

The exact flue route, terminal position, clearances and installation requirements must be checked against the current Rinnai installation documentation and the regulations applicable in the installation country.

Compact Internal Installation

The Rinnai 17i is designed for wall-mounted internal installation.

Dimensions

• Height: approximately 541 mm
• Width: approximately 373 mm
• Depth: approximately 173 mm
• Weight: approximately 14.5 kg

Its compact format can make it suitable where installation space is limited, subject to the required clearances and ventilation/flue requirements.

Adjustable Hot-Water Temperature

The Rinnai 17i provides electronic temperature control with selectable temperatures within its specified operating range.

Rinnai’s specification lists temperature settings from approximately 37°C to 65°C, depending on the selected setting. The manufacturer also specifies temperature accuracy of approximately ±1°C under applicable conditions.

Applications

The Rinnai 17i LPG water heater can be considered for a range of domestic and light-commercial applications, including:

• Houses
• Apartments
• Multi-bathroom homes
• Guest houses
• Holiday accommodation
• Restaurants
• Cafés
• Small commercial premises
• Care facilities
• Leisure facilities
• Property developments

The correct appliance size should be selected based on the expected simultaneous hot-water demand and required temperature rise.

Technical Specifications

The technical figures above are based primarily on Rinnai’s published 17i specification. Always verify the exact supplied appliance and flue kit against the current manufacturer documentation before installation.

Rinnai 17i LPG vs Storage Water Heaters

Unlike a conventional storage water heater, the Rinnai 17i heats water when there is a demand for hot water.

This means the appliance does not rely on a large storage cylinder inside the heater itself. For suitable applications, continuous-flow technology can provide hot water while using less installation space.

Actual energy consumption depends on hot-water demand, inlet-water temperature, outlet temperature, gas price, water flow and system design.

Professional Installation

The Rinnai 17i is a gas appliance and should be installed by an appropriately qualified professional.

Before installation, the installer should verify:

• LPG supply and operating pressure
• Gas pipe sizing
• Water pressure
• Required hot-water flow
• Temperature rise
• Flue route
• Horizontal flue terminal position
• Required clearances
• Condensation and drainage requirements where applicable
• Electrical requirements
• Local gas and building regulations
• Manufacturer installation instructions

Installation requirements can vary between European countries, so the applicable national requirements must be followed.

Why Buy the Rinnai 17i LPG Water Heater?

The Rinnai 17i combines compact internal installation with instantaneous LPG hot-water delivery.

Key advantages include:

• Rinnai 17i LPG technology
• Compact wall-mounted design
• Room-sealed operation
• Horizontal flue compatibility
• Low-NOx combustion
• Electronic ignition
• Adjustable temperature control
• Continuous-flow hot water
• Suitable for domestic and light-commercial applications

Frequently Asked Questions

Is the Rinnai 17i available for LPG?

Yes. Rinnai’s specification identifies W17i-LPG as the LPG version of the 17i multipoint water heater.

Is the Rinnai 17i a tankless water heater?

Yes. It is an instantaneous multipoint gas water heater that heats water on demand rather than using a traditional storage tank.

How much water can the Rinnai 17i deliver?

Rinnai lists a maximum flow rate of 20 L/min under specified conditions and a delivery capacity of approximately 12.3 L/min at a 33°C temperature rise. Actual flow depends on operating conditions.

Is the Rinnai 17i suitable for internal installation?

Yes. The 17i is specified for indoor installation and uses a forced room-sealed flue system.

Does this version use a horizontal flue?

Yes. This EuroFuelSupply product should be clearly identified as the horizontal-flue configuration. The exact flue kit supplied should be confirmed with the product order.

What type of gas does this model use?

This product is the LPG configuration, W17i-LPG. Confirm the appliance gas configuration before installation.

Who should install the Rinnai 17i?

Installation should be carried out by an appropriately qualified gas/heating professional in accordance with Rinnai’s instructions and the regulations applicable in the destination country.

Buy Rinnai 17i LPG Gas Water Heater in Europe

The Rinnai 17i LPG Gas Water Heater with Horizontal Flue Kit is a compact solution for customers looking for an internal LPG instantaneous water heater for domestic or light-commercial applications.

EuroFuelSupply supplies heating and water-heating products to customers across European markets, with product enquiries available for homeowners, businesses, installers, trade customers and commercial buyers.

For larger projects or multiple-unit requirements, customers can also request a quotation with the required quantity and European delivery destination.