Condensing boiler · New equipmentVaillant ecoTEC exclusive VMW 30CF/1-7 SfI
Vaillant ecoTEC exclusive VMW 30CF/1-7 SfI boiler
Heating and hot water for everyday use, combined in a gas boiler.
- Gas
- Natural gas Without conversion to LPG
- Wi-Fi
- Included myVAILLANT
- Heating
- 3.0-22.0 kW 80/60 °C
- Domestic hot water flow rate
- 14.3 l/min ΔT 30 K
Gas and Wi-Fi: compatibility and accessories
Gas and conversion: This version is documented for natural gas. Conversion to propane and compatibility with butane are not offered. Source 1 ↗ Source 2 ↗ Source 3 ↗
Wi-Fi and supply: The exact commercial sheet of ecoTEC exclusive VMW 30CF, 36CF, and 43CF indicates sensoCOMFORT radio and myVAILLANT connectivity as standard. The gas category of these Spanish versions is I2H. Source 1 ↗ Source 2 ↗ Source 3 ↗
Description
Vaillant combines home heating and hot water for taps and showers. When choosing it, both water usage and heating needs are important: a home with multiple showers running at the same time requires a different assessment.
Its micro-accumulation system helps to have hot water ready for everyday use. It is not equivalent to a large tank: the choice should take into account the flow rate you need and how many taps or showers you will use at the same time.
What to check before installing this boiler
The choice of equipment does not replace the inspection of the installation by a qualified professional.
- Confirm the model and commercial reference, the type of gas, and the supply configuration in the manufacturer's documentation.
- Ask a qualified installer to assess the heating and domestic hot water demand; compare measured flow rates at the same temperature difference.
- Check dimensions, connections, flue gas evacuation, condensate drainage, and controls compatible with the existing installation.
- Confirm the included accessories and the delivery time before scheduling the installation. The online purchase of the equipment does not include installation or commissioning.
Technical data of Vaillant ecoTEC exclusive VMW 30CF/1-7 SfI boiler
- Brand
- Vaillant
- Model
- Vaillant ecoTEC exclusive VMW 30CF/1-7 SfI boiler
- Status
- New
- Supply scope
- With sensoCOMFORT radio and myVaillant. Installation not included.
- Shipping
- Included in mainland Spain. Please confirm the deadline.
- Commercial reference
- 125834627
Specifications and dimensions of the model
Compare each magnitude under its testing conditions: heating, domestic hot water, efficiency, and dimensions.
- Heating power G20 (80/60 °C)
- 3.0-22.0 kW
Heating - Heating power G20 (50/30 °C)
- 3.4-23.9 kW
Heating - Heating thermal load G20 (Hi)
- 3.2-22.4 kW
Heating - Adjustable flow temperature
- 30-80 °C
Heating - Maximum heating pressure
- 3 bar
Heating - Maximum power DHW G20
- 30.0 kW
Hot water - Nominal thermal load DHW G20 (Hi)
- 28.3 kW
Hot water - Specific flow rate D (ΔT 30 K, EN 13203-1)
- 14.3 l/min
Hot water - Declared domestic hot water flow rate (ΔT 25 K)
- 17.2 l/min
Hot water - Minimum starting flow rate
- 2.0 l/min
Hot water - Domestic hot water flow limiter
- 10.4 l/min
Hot water - Adjustable domestic hot water temperature
- 35-65 °C
Hot water - Allowed service pressure for domestic hot water
- 0.3-10 bar
Hot water - Required connection pressure for domestic hot water
- 0.7 bar
Hot water - Hot water system
- Mixed with micro-accumulation
Hot water - Dimensions (height x width x depth)
- 720 x 440 x 382 mm
Dimensions and installation - Net weight
- 41 kg
Dimensions and installation - Minimum lateral distance
- 5 mm on each side
Dimensions and installation - Minimum inferior distance
- 180 mm
Dimensions and installation - Minimum front service distance
- 500 mm
Dimensions and installation - Distance greater with duct 60/100
- 165 or 248 mm, according to the installation plan
Dimensions and installation - Maximum distance with duct 80/80
- 220 mm
Dimensions and installation - Maximum distance with duct 80/125
- 276 mm
Dimensions and installation - Natural gas connection pressure G20
- 20 mbar
Gas and connections - Gas connection on the appliance
- 15 mm
Gas and connections - Air connection and exhaust in the appliance
- 60/100 mm
Gas and connections - NOx emissions class
- 6
Gas and connections - Maximum electrical consumption in heating
- 55 W
Electricity - Maximum electrical consumption in domestic hot water
- 73 W
Electricity - Nominal power supply
- 230 V / 50 Hz
Electricity - Standby power consumption
- Less than 2 W
Electricity - Degree of protection
- IPX5D
Electricity
PDF and documentation of the model
Original documents, unmodified. Refer to the installation plan and the conditions of each data point before selecting the equipment.
- ecoTEC exclusive VMW installation manualPDF · 88 pages · VaillantView original on the manufacturer's website ↗
- ecoTEC exclusive technical sheetPDF · 2 pages · VaillantView original on the manufacturer's website ↗
The gallery sheets are summaries of Uniclima based on these documents. The external volume diagram does not represent connections, accessories, or service distances.
Frequently asked questions: condensing boilers 125834627
Does the ecoTEC exclusive 30CF fit in a 120 m² home?
It can fit if the calculated heat loss is within 3.0-22.0 kW at 80/60 °C. For example, 120 m² with a supposed demand of 80 W/m² would need 9.6 kW; this is not a surface approved by Vaillant. The minimum of 3.0 kW should also be considered when only some rooms are heated. Climate, insulation, ventilation, and emitters determine the actual load; the 30 kW in the name corresponds to domestic hot water, not the maximum heating capacity.
Why is it recommended for two bathrooms if it does not guarantee two simultaneous showers?
The number of bathrooms describes the dwelling, not its simultaneous consumption. Two showers at 8 l/min require 16 l/min at ΔT 30 K if the water enters at 10 °C and is used at 40 °C. The 30CF specifies 14.3 l/min at that temperature difference, which is below the example. Additionally, it incorporates a limiter of 10.4 l/min, different from the test data and the mixed flow rate. The limiter should not be modified in an attempt to reach a commercial figure.
Does the micro-accumulation of the 30CF serve as a reserve to fill a bathtub?
It should not rely on a reserve of tens of liters. Micro-accumulation improves the initial response; during a prolonged filling, the 30.0 kW of domestic hot water and the actual water conditions are delivered. The documentation for this family does not specify an integrated sanitary tank in liters. To fill with less waiting time, it is advisable to compare flow rates at the same temperature and check the water supply, rather than adding a supposed tank capacity.
What space does the 30CF need inside a cabinet?
Its dimensions are 720 x 440 x 382 mm. The manual requires 5 mm on each side, 180 mm below, and 500 mm of front service access. Above, it indicates 165 or 248 mm with 60/100 according to the plan, 220 mm with 80/80, or 276 mm with 80/125. The appliance connection is 60/100 mm; any alternative solution must be authorized. The door and cabinet elements must not obstruct maintenance.
What improvements does the 36CF have over the 30CF without taking up more depth?
The 36CF maintains dimensions of 720 x 440 x 382 mm and weighs 41 kg, but increases heating from 22.0 to 25.0 kW at 80/60 °C and domestic hot water from 30.0 to 36.4 kW. Its specific flow rate at ΔT 30 K rises from 14.3 to 17.4 l/min. Both drop to 3.0 kW in heating. The limiter changes from 10.4 to 11.7 l/min: the improvement in domestic hot water must be verified with the pressure and the consumption points of the house.
How much electricity does the exclusive 30CF consume and what do its kW mean?
The manual states a maximum electrical consumption of 55 W for heating and 73 W for domestic hot water, with less than 2 W in standby. These values do not represent gas consumption or the 30 kW thermal output for domestic hot water. To estimate electrical energy, one must consider the time and mode of operation; multiplying the maximum by all hours of the year does not reflect actual usage. The energy indicators of the equipment are estimates and do not replace the reading of the meter.
Does the price include installation and shipping?
Includes VAT and shipping to mainland Spain. Installation and adaptations are valued separately. With sensoCOMFORT radio and myVaillant. Installation not included.
