ATTENTION THE PRODUCT IS NEW AND 100% WORKING, BUT IT HAS DENTS ON THE BOTTOM AND SIDE (SEE PHOTO NEXT TO THE MAIN IMAGE)

MURALE Riello START 25 Kis LOW NOx condensing boiler complete with methane fume exhaust kit 20187404

• Seasonal space heating efficiency class A

• Water heating energy efficiency class - A
• Rated power P rated kW 19
• Seasonal energy efficiency of space heating % 93

HEATING

• Nominal heat input: kW 20.00

• Nominal thermal power (80÷60 °C) kW 19.38
• Nominal thermal power (50÷30 °C) kW 20.92
• Reduced heat output: 3.10 kW
• Reduced thermal power (80÷60 °C) kW 2.94
• Reduced thermal power (50÷30 °C) kW 3.04

HEALTHCARE

• Nominal heat input kW 25.00

• Nominal thermal power kW 25.00
• Reduced heat output kW 3.10
• Reduced thermal power (*) kW 3.10

RETURNS

• Useful efficiency Pn max-Pn min (80°-60°) % 96.9 - 94.7

• Useful efficiency Pn max-Pn min (50°-30°) % 104.6 - 98.0
• Useful efficiency 30% (return 30°C) % 109.1
• Efficiency at average P Range Rated (80°-60°) % - 97.0
• Yield at Average P Range Rated 30% (30th return) % - 109.3
• Combustion efficiency % 97.2
• Chimney losses with burner on (Pn max) % 2.8
• Chimney losses with burner off % 0.09
• Shell losses with burner on (Pn max) % 0.3

SMOKE EXHAUST

• Nox class - UNI EN 15502: 6

• Residual head concentric pipes 0.85 m ø 60-100 mm Pa: 60
• Residual head of separate pipes 0.5 m ø 80 mm Pa: 180
• Boiler residual head without pipes and without flange Pa 186

ELECTRICAL CHARACTERISTICS

• Electrical power (Pel max heating - Pel max san.) W 62 - 95

• Circulator electric power (1000 l/h) W 42
• Supply voltage V - Hz 230-50
• IP X5D protection rating

HEATING OPERATION

• Maximum pressure bar 3

• Minimum pressure for standard operation 0.25 bar
• Maximum temperature °C 90
• Pump: max head available on the system mbar 408
• at a flow rate of 1000 l/h
• Membrane expansion vessel l 8
• Preload expansion vessel bar 1

HEALTHCARE EXERCISE - INSTANT VERSION

• Maximum pressure bar - 8

• Minimum pressure bar - 0.5
• Quantity of hot water with ?t 25°C l/min - 14.3
• with ?t 30°C l/min - 11.9
• with ?t 35°C l/min - 10.2
• Minimum domestic water flow rate l/min - 2
• H2O san temperature selection field. °C - 37/60
• Flow regulator l/min – 10

New Start

START is the new proposal, completely renewed from a technological and functional point of view, of Riello condensing boilers for small and medium-sized domestic users. START is available in 3 sizes 15, 25, 30 kW, in combined versions (KIS) and heating only (IS). One of the distinctive features of the new START is the innovative digital control panel with touch buttons designed with particular attention to ease of use.

• High efficiency sanitary exchanger developed by Riello
• Modern and intuitive touchscreen HMI, with representative icons and capacitive keys with acoustic "buzzer" sound
• Modern and linear design with lower under-boiler fittings cover available as an accessory for excellent aesthetic integration
• Specific healthcare electronic functions: sanitary delay, anti-swing function and smart fan
• Hydraulic unit with DIN standard sequence
• Low consumption circulator (EEI?0.20) 7 m with high head available as an accessory
• Easy installation, integration even in small spaces and replacement thanks to the wide choice of accessories available as options
• Modulation ratio 1:8
• Easy maintenance and cleaning of the combustion chamber thanks to front access to the exchanger – Seasonal efficiency 93%
• 8 liter lateral expansion tank
• Standard flue flange with dedicated flue
• Thermoregulation as standard in combination with the external probe, available as an accessory
• Possibility of recessed installation (model 25 KIS and 30 KIS) and outdoors in partially protected places (IPX5D)
• Mounting crosspiece already integrated into the boiler and electrical power cable supplied
• Methane operation as standard with the possibility of conversion to LPG (G31) and propane air via accessories. This modification is the responsibility of the installer or the technical assistance service.
• IPX5D electrical protection degree.

Warranty All products on sale on our site are new and packaged. The warranty on this item is 24 months from the date of purchase.

• peso: 40.0 kg
• classe energetica produzione acs: A
• classe energetica riscaldamento: B
• gas: Methane
• marca: Riello
• modello: AO679_1
• potenza in kw: 25
• potenza nominale: 25