Gas condensing boiler ITALTHERM City Class KR-25 KR with the option to connect a storage water heater

-353.00 €

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SKU: 301001433

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1,005.00 € /pcs.
vnt. 1,358.00 €

830,58 € (Tax excluded)

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LPExpress	2-3 business days
Collect in store	Pick up from our pick-up point
Courier delivery	2-3 business days

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Description

Gas condensing boiler ITALTHERM City Class KR-25 KR with the possibility to connect a storage water heater

For heating and preparing hot water

Advantages:

Stainless steel heat exchanger
Certified “Range rated“
I.C.S – automatic combustion system
High efficiency modulating circulation pump (ERP)
Power modulation 1:10
Copper hydraulic group!
6 NOx class according to UNI EN 15502-1
Electrical protection class IP X5D
“Bypass”
Automatic three-way valve
Flow regulator
Boiler dimensions (mm): 700 x 400 x 300
“Gas adaptation” function (“City Class” boilers can operate with all types of gas, no need to change nozzles)
“Holiday program” function
“Frost protection” function
“Chimney cleaning” function
Possibility to connect a room thermostat (wired or wireless)
Possibility to connect an outdoor thermostat
Easy boiler maintenance
Possibility to connect and control separate heating system zones (e.g. radiator and underfloor heating with additional accessories)
Water filter easily removable
Design: Giorgetto Giugiaro. Compact and elegant.

STAINLESS STEEL HEAT EXCHANGER

The employees of “Italtherm” designed a stainless steel heat exchanger with an extremely high water flow capacity: the internal part of the heat exchanger was increased by 4 times compared to other competitors.

Thanks to the new heat exchanger, “City Class” has better heat transfer and provides better protection against heat exchanger scaling, making “City Class” condensing boilers ideal for replacing boilers in old systems.

The design of the new heat exchanger ensures:

high flow
low hydraulic load losses
easy cleaning and technical maintenance of the boiler.

ICS - AUTOMATIC COMBUSTION SYSTEM

The engineers of “Italtherm” developed the “ICS – automatic combustion system”, which turns the “City Class” boiler into a smart boiler that automatically controls, adjusts, and adapts.

“ICS – automatic combustion system” controls combustion parameters and regulates gas flow so that the boiler always receives the correct air-to-gas ratio, thus achieving:

lower gas consumption
lower CO / CO2 emissions
faster boiler adjustment

COPPER HYDRAULIC GROUP

“Italtherm” aims to ensure the highest reliability and durability of its products, which is why it uses copper in the hydraulic group.

The new copper hydraulic group is equipped with:

high efficiency pump (with Erp labeling)
three-way valve
by-pass” bypass circuit valve
boiler/system water filling tap
check valve
flow regulator
NTC DHW sensor

TECHNICAL DATA

Product Details

SKU301001433

Data sheet

Model		City Class 25 KR	City Class 35 KR
Gas type		G20	G20
Maximum thermal power for preparing hot water	kW	25.0	33.2
Maximum thermal power for heating	kW	20.0	28.0
Minimum thermal power for heating	kW	2.5	3.5
Maximum thermal power (60°/80°C)	kW	19.4	27.4
Minimum thermal power (60°/80°C)	kW	2.4	3.3
Maximum thermal power (30°/50°C)	kW	21.0	29.5
Minimum thermal power (30°/50°C)	kW	2.7	3.7
NOX Class		6	6
EFFICIENCY