Rinnai EF 250EXT NG INFEF250N
Rinnai’s most efficient continuous flow gas hot water system. Rinnai INFINITY EF condensing continuous flow gas water heaters effectively capture waste heat from the flue gas through the use of a secondary heat exchanger to help heat the water with less energy.
- Suitable for 2 - 4 bedrooms
- Suitable for 3 - 7 People
- More efficient than other units
Product Description
Rinnai’s most efficient continuous flow gas hot water system. Rinnai INFINITY EF condensing continuous flow gas water heaters effectively capture waste heat from the flue gas through the use of a secondary heat exchanger to help heat the water with less energy.
Hot water capacity
1.5 to 37 litres per minute
Suitable for
• Commercial and domestic external applications
• Mains and medium pressure systems
• Solar installations as a gas boost
Hard or acidic water will need to be treated in order to use this product.
Gas type
Available for Natural Gas or LPG. Specify gas type at time of purchase.
Clearances
The following diagram has been provided to assist you in determining where (and if) an external continuous flow water heater can be positioned. If in doubt, prior to purchase, consult a licensed gasfitter.
Clearance below eaves, balconies, and other projections, for all models is 300 mm.
* Rinnai recommend 1.5 m to give enough clearance for the pipe work, and to safely expel flue gases.
REU number: | REU-KM3237WD |
Factory preset temperature: | 55 °C |
Rinnai product code: | INFEF250N/INFEF250L |
Capacity | Hot water capacity: 1.5-37 litres per minute Nominal water capacity: 32 litres per minute at a 25 °C rise (1920 L/h) |
Connections | Hot water outlet: R¾ (20 mm) Cold water inlet: R¾ (20 mm) Gas supply: R¾ (20 mm) Condensate: R½ (15 mm) |
Exhaust system | Forced flue |
Frost protection | Fitted as standard. Frost protection operates automatically, as long as the appliance is connected to the electrical power supply, by activating when the temperature inside the unit drops below 3.5 °C, and turns off once the temperature inside the unit reaches 7 °C. |
Ignition system | Direct electronic ignition |
Injector size | NG: 1.15, 1.9, 1.8* LPG: 0.75, 1.15, 1.1* * only one point |
Line pressure (min.) | NG: 1.13 kPa, LPG: 2.75 kPa |
Line pressure (max.) | 3.5 kPa (maximum standing pressure under abnormal intermittent conditions is 5.0 kPa). In the case of commercial metering (i.e. 35-37 kPa coming in), there may be a requirement to regulate the incoming line pressure down. |
Power consumption | Normal: LPG – 62 W, NG – 51 W Automatic frost protection: 170 W Standby: 2.4 W |
Noise level | 50 dB(A) |
NOx af | < 60 ppm |
Safety devices | Flame failure, boil-dry protection, overheat protection (OHS), fusible link, pressure relief valve, combustion fan rpm check |
Water supply | Nominal operating pressure: 240-1000 kPa Minimum water flow: 1.5 litres per minute |
Weight | 32 kg |
Market release | July 2011 |
Compliance | ES: Supplier Declaration of Compliance • Declaration Number: 1008720096 • Certificate Number: 7083 |
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