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Riello Start 25 KIS 20 kW

Photos - Boiler Riello Start 25 KIS 20 kW
Outdated Product
Energy source: gas; Installation: wall; Type: dual-circuit (heating and DHW); Heating area (m²): 160; Condensing; Heat output (kW): 20; Coolant min. T (°C): 20; Coolant max. T (°C): 90; DHW min. T (°C): 37; DHW max. T (°C): 60; Performance (ΔT=25 °C) (L/min): 14.3; Heated floor mode; Efficiency (%): 109.1
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Riello Start 25 KIS 20 kW
20 kW
25 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:20 kW, area ~ 160 m²
Combustion chamber:closed, flue 60/100, 80/125 mm
DHW temperature:from 37 °С, up to 60 °С
All specifications
Specifications Start 25 KIS
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
Heating area160 m²
Condensing
Technical specs
Heat output20 kW
Min. heat output2.94 kW
Power supply230 В
Power consumption95 W
Coolant min. T20 °С
Coolant max. T90 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure8 bar
Consumer specs
DHW min. T37 °С
DHW max. T60 °С
Performance (ΔT=25°C)14.3 L/min
Performance (ΔT ~30 °C)11.9 L/min
"Summer" mode
Heated floor mode
Circulation pump
Boiler specs
Efficiency109.1 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100, 80/125 mm / 80/80 mm for separate /
Expansion vessel capacity8 L
Expansion vessel pressure1 bar
Connections
Mains water intake1/2"
DHW flow1/2"
Gas supply3/4"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
frost protection
More specs
Dimensions (HxWxD)700x400x275 mm
Weight28.5 kg
Official Websiteriello.it
Added to E-CatalogSeptember 2025
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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