Comparison Atem Zhytomyr-9 KS-GV-020SN/AOTV-15 20 kW vs Atem Zhytomyr-9 KS-G-020SN/AOTV-15 20 kW

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	Atem Zhytomyr-9 KS-GV-020SN/AOTV-15 20 kW	Atem Zhytomyr-9 KS-G-020SN/AOTV-15 20 kW
	from $533.76 Outdated Product	from $485.00 Outdated Product
all specs only differences
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Energy source	gas / coal	gas / coal
Installation	floor	floor
Type	dual-circuit (heating and DHW)	single-circuit (heating only)
Heating area	160 m²	160 m²
Technical specs
Heat output	20 kW /gas, 15 kW — coal/	20 kW /gas, 15 kW — coal/
Power supply	autonomous (no electricity)	autonomous (no electricity)
Coolant min. T	60 °С	60 °С
Coolant max. T	80 °С	80 °С
Heating circuit max. pressure	1 bar	1 bar
Consumer specs
Circulation pump
Boiler specs
Efficiency	92 % /gas, 78% coal/	92 % /gas, 78% coal/
Combustion chamber	open (atmospheric)	open (atmospheric)
Max. gas consumption	2.34 m³/h	2.34 m³/h
Connections
Mains water intake	1/2"
DHW flow	1/2"
Gas supply	1/2"	1/2"
Central heating flow	2"	2"
Central heating return	2"	2"
Safety
Safety systems	gas pressure drop water overheating flame loss draft control	gas pressure drop water overheating flame loss draft control
More specs
Dimensions (HxWxD)	1135x595x730 mm	1135x595x730 mm
Weight	193 kg	190 kg
Added to E-Catalog	february 2016	february 2016

Type

Depending on the set of functions, boilers are divided into single-circuit and dual-circuit.

- Single-circuit boilers are equipped with one heat exchanger, in which the heat from fuel combustion is transferred to the heat medium of the heating system. The only function of such boilers is space heating. It is technically possible to use single-circuit boilers to provide hot water, but this requires an additional tank (the so-called indirect water heater).

- In dual-circuit boilers, the primary heat exchanger is supplemented by a secondary one. Due to this, such a boiler, in addition to heating the room, also provides a hot water supply. In this case, both running water and water accumulated in a special tank(see Built-in water heater tank) can be used.

Mains water intake

The diameter of the pipe for connecting the pipe through which cold water is supplied to the boiler for heating and use in the hot water supply system.

Diameters are indicated in inches. It is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size. There are connection options 1/2", 3/4", 1" and 1 1/2".

DHW flow

The diameter of the pipe for connecting the pipe through which hot water leaves the boiler for the DHW system.

Diameters are indicated in inches. It is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size.