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Rinnai RB 307 EMF 34.9 kW

Photos - Boiler Rinnai RB 307 EMF 34.9 kW
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Energy source: gas; Installation: wall; Type: dual-circuit (heating and DHW); Heating area (m²): 262; Remote control unit; Heat output (kW): 34.9; Coolant min. T (°C): 40; Coolant max. T (°C): 85; DHW min. T (°C): 35; DHW max. T (°C): 60; Performance (ΔT=25 °C) (L/min): 24; Heated floor mode
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Rinnai RB 307 EMF 34.9 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:34.9 kW, area ~ 262 m²
Combustion chamber:closed, flue 75/100 mm
DHW temperature:from 35 °С, up to 60 °С
All specifications
Specifications RB 307 EMF
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
Heating area262 m²
Additional equipment
Remote control unit
Technical specs
Heat output34.9 kW
Power supply230 В
Power consumption165 W
Coolant min. T40 °С
Coolant max. T85 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure7 bar
Consumer specs
DHW min. T35 °С
DHW max. T60 °С
Performance (ΔT=25°C)24 L/min
Heated floor mode
Circulation pump
Boiler specs
Efficiency96.5 %
Combustion chamberclosed (turbocharged)
Flue diameter75/100 mm
Inlet gas pressure20 mbar
Max. gas consumption3.52 m³/h
Expansion vessel capacity8.5 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
water circulation failure
frost protection
More specs
Dimensions (HxWxD)600x440x240 mm
Weight29.3 kg
Added to E-CatalogJune 2012
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 Rinnai 2025 - new arrivals, bestsellers, and the most relevant models Rinnai.
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
don't like it!
19 December 2012 
before this, there was an OTON for 12 years, the performance was the same, but the price!!!
no
outside is -20, gas pressure is rather weak, and the boiler doesn't provide hot water!!!!!! It runs lukewarm for about a minute, then becomes completely icy!
vladimiruse Rinnai RB 107 EMF few months i recommend it don't buy
I think everything is working as it should.
25 October 2016 
Alma-Ata. Moved into the apartment with an autonomous system, the boiler had been with the previous owners for two years. Started the boiler myself at +5 outside, +13 in the room, with the boiler circuit drained, connected to the water supply, and gas. Filled it up, adjusted the pressure myself, released air from the radiators. The air valve whistled when refilling. The heating of the radiators is quick. Thanks to the short length of pipe to the sinks, hot water reaches there almost immediately.
Yes, as easy to use as a sewing machine. For women who are somewhat knowledgeable in technology, locksmithing, and plumbing. It doesn't make much noise. Doesn't overheat. Operates according to the manual, in accordance with the manual.
Each activation of the heating button triggers the burner. In other words, reprogramming without additional heating hasn't been achieved yet. Possibly, not all "features" are available in this model, due to the relay's inconsistency with the stated functions. For instance, the claimed ability in the instructions to reprogram the boiler with the two lower buttons when the heating button is off is missing.
just bought Rinnai RB 107 EMF
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