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Protherm Medved 50 PLO 44.5 kW

Photos - Boiler Protherm Medved 50 PLO 44.5 kW
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A series of single-circuit gas boilers Protherm PLO. With a useful thermal power of 44.5 kW, the maximum consumption of natural gas does not exceed 5.2 cubic metres. at one o'clock. And the combustion efficiency in this case reaches 92%. The device is equipped with a built-in boiler, which allows it to be used also for preparing hot water. The combustion chamber is open type, with the capture of air from the room where the boiler is installed. Floor mounting, weight becomes 150 kg.
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Protherm Medved 50 PLO 44.5 kW
Energy source:gas
Mount:floor, single-circuit
Boiler power:44.5 kW, area ~ 334 m²
Combustion chamber:open, flue 180 mm

A series of single-circuit gas boilers Protherm PLO. With a useful thermal power of 44.5 kW, the maximum consumption of natural gas does not exceed 5.2 cubic metres. at one o'clock. And the combustion efficiency in this case reaches 92%. The device is equipped with a built-in boiler, which allows it to be used also for preparing hot water. The combustion chamber is open type, with the capture of air from the room where the boiler is installed. Floor mounting, weight becomes 150 kg.

All specifications
Specifications Medved 50 PLO
Main
Energy sourcegas
Installationfloor
Typesingle-circuit (heating only)
Heating area334 m²
Technical specs
Heat output44.5 kW
Power supply230 В
Power consumption20 W
Coolant min. T45 °С
Coolant max. T90 °С
Heating circuit max. pressure4 bar
Consumer specs
Circulation pump
Boiler specs
Efficiency92 %
Combustion chamberopen (atmospheric)
Flue diameter180 mm
Inlet gas pressure18 mbar
Max. gas consumption5.2 m³/h
Connections
Mains water intake1/2"
Gas supply3/4"
Central heating flow1"
Central heating return1"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
power outage
More specs
Dimensions (HxWxD)880x590x600 mm
Weight150 kg
Added to E-CatalogSeptember 2010
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.
Catalog Protherm 2026 - new arrivals, bestsellers, and the most relevant models Protherm.
Has not failed for more than a year
2 April 2019 
I’m sharing my opinion about the Bear PLO 17 kW floor-standing gas boiler I bought a year ago. I wanted to buy a simple and reliable boiler, with a minimum of electronics and other fancy bells and whistles. Bear PLO is electrically independent, boiler with piezo ignition. For its normal operation, you only need gas and nothing more. I have an imported one, because... there is no highway. The heat exchanger is made of cast iron; if used properly, it is an almost eternal material; I myself have seen a cast iron boiler made in 1949 that is still working, I know what I’m talking about. The heating issue was solved by PLO Bear, the radiators are hot even in severe frosts. I have been the satisfied owner of this boiler for more than a year, during all this time the Bear has not caused any problems, the main thing is to make sure that the gas does not run out - and everything will be great. The boiler is definitely worth the money.
reliable performance
no
use Protherm Medved 20 PLO more than year
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