Floor-Standing Boiler Gas, CondensingecoVIT exclusiv

Strong performance in a small space.

Perfect for the quick replacement of old boilers
Highly efficient and built to last with a stainless steel heat exchanger
Future‑proof with operation on 100% HVO
Flexible fuel options with up to 20% bio heating oil
Space‑saving hybrid system with a heat pump

Ideal for modernising single‑ and two‑family homes with proven technology: our icoVIT exclusiv oil condensing boiler in 15, 25, and 35 kW operates quietly thanks to the integrated silencer. By fully utilising the exhaust gases, it heats highly efficiently and reduces heating oil consumption. You easily meet renewable‑energy requirements, as the boiler can run on up to 100% HVO (Hydrotreated Vegetable Oil). In a hybrid system with a heat pump, you save space and costs because no separate buffer storage is required.

Ideal for:

Heating

Technical data table overline

Technical data table headline

ecoVIT exclusiv
VKK 226/4	VKK 286/4	VKK 366/4	VKK 476/4	VKK 656/4

ErP

ErP Seasonal Space Heating Efficiency Class	ErP Seasonal Space Heating Efficiency Class
ErP Seasonal Space Heating Energy Efficiency	ErP Seasonal Space Heating Energy Efficiency	91 %	91 %	91 %	93 %	91 %

ecoVIT exclusiv
VKK 226/4	VKK 286/4	VKK 366/4	VKK 476/4	VKK 656/4

Power Output and Efficiency

Efficiency (G20, G25) (Domestic Hotwater Mode)	Efficiency (G20, G25) (Domestic Hotwater Mode)	100 %	100 %	100 %	100 %	100 %
Efficiency (G20, G25) (30% acc. to EN 15502)	Efficiency (G20, G25) (30% acc. to EN 15502)	108,0 %	108,0 %	108,0 %	108,0 %	108,0 %
Heat Output 80/60 °C (G20, G25) (min - max)	Heat Output 80/60 °C (G20, G25) (min - max)	6,3 - 21,3 kW	7,7 - 26,2 kW	11,0 - 34,0 kW	12,8 - 43,6 kW	17,8 - 60,1 kW
Heat Output (G20, G25) (Domestic Hotwater Mode) (max)	Heat Output (G20, G25) (Domestic Hotwater Mode) (max)	21,3 kW	26,2 kW	34 kW	43,6 kW	60,1 kW
Heat Output 50/30 °C (G20, G25) (min - max)	Heat Output 50/30 °C (G20, G25) (min - max)	6,8 - 22,9 kW	8,2 - 28,1 kW	10,7 - 36,4 kW	13,7 - 46,8 kW	19,0 - 64,5 kW
Heat Input (G20, G25) (min - max)	Heat Input (G20, G25) (min - max)	7,7 - 22,0 kW	8,5 - 27,0 kW	11,5 - 35,0 kW	15,0 - 45,0 kW	22,0 - 62,0 kW
Heat Output 80/60 °C (G31) (min - max)	Heat Output 80/60 °C (G31) (min - max)	9,6 - 21,3 kW	13,1 - 26,2 kW	15,2 - 34,0 kW	19,6 - 43,6 kW	21,1 - 60,1 kW
Heat Output 50/30 °C (G31) (min - max)	Heat Output 50/30 °C (G31) (min - max)	10,3 - 22,9 kW	14,0 - 28,1 kW	16,3 - 36,4 kW	21,0 - 46,8 kW	22,6 - 64,5 kW
Heat Input (G31) (min - max)	Heat Input (G31) (min - max)	9,9 - 22,0 kW	13,5 - 27,0 kW	15,7 - 35,0 kW	20,2 - 45,0 kW	21,7 - 62,0 kW
Gas Flow Rate, G20	Gas Flow Rate, G20	2,3 m³/h	2,9 m³/h	3,7 m³/h	4,8 m³/h	6,6 m³/h
Gas Flow Rate, G31	Gas Flow Rate, G31	1,7 m³/h	2,1 m³/h	2,7 m³/h	3,5 m³/h	4,8 m³/h

Insulation And Heat Loss

Standby Heat Loss at tK=70 °C	Standby Heat Loss at tK=70 °C	0,91 %	0,59 %	0,5 %	0,36 %	0,31 %

Electrical Connection

Electrical Power Consumption (Domestic Hotwater Mode) (max)	Electrical Power Consumption (Domestic Hotwater Mode) (max)	45 W	45 W	45 W	90 W	110 W
Electrical Power Consumption (standby)	Electrical Power Consumption (standby)	8 W	8 W	8 W	8 W	8 W
Electrical Power Consumption (30 %)	Electrical Power Consumption (30 %)	14 W	15 W	18 W	20 W	22 W
Electrical Voltage Supply	Electrical Voltage Supply	230 V (50 Hz)	230 V (50 Hz)	230 V (50 Hz)	230 V (50 Hz)	230 V (50 Hz)

Operation Fluids

Content Heating Circuit	Content Heating Circuit	100 l	100 l	89 l	85 l	85 l
Amount Of Condensates at 40/30 °C	Amount Of Condensates at 40/30 °C	2,2 l/h	3,0 l/h	3,5 l/h	4,2 l/h	7,1 l/h

Connections

Connection Dimension Heating (Flow, Return)	Connection Dimension Heating (Flow, Return)	Rp 1″	Rp 1″	Rp 1″	Rp 1″	Rp 1″
Connection Dimension Natural Gas	Connection Dimension Natural Gas	Rp ¾″	Rp ¾″	Rp ¾″	Rp ¾″	Rp ¾″
Connection Dimension Combustion Air, Flue Gas	Connection Dimension Combustion Air, Flue Gas	Ø 80/125 mm	Ø 80/125 mm	Ø 80/125 mm	Ø 80/125 mm	Ø 80/125 mm

Dimensions

Height / Width / Depth	Height / Width / Depth	1.257 mm / 570 mm / 691 mm	1.257 mm / 570 mm / 691 mm	1.257 mm / 570 mm / 691 mm	1.257 mm / 570 mm / 691 mm	1.257 mm / 570 mm / 691 mm
Weight (Unpackaged, Net)	Weight (Unpackaged, Net)	100 kg	100 kg	110 kg	120 kg	120 kg
Weight Ready for Operation	Weight Ready for Operation	210 kg	235 kg	255 kg	320 kg	320 kg

Limitations

Operating Pressure Heating (max)	Operating Pressure Heating (max)	3 bar	3 bar	3 bar	3 bar	3 bar
Flow Temperature (max)	Flow Temperature (max)	85 °C	85 °C	85 °C	85 °C	85 °C