Condensing boiler · New equipmentVaillant ecoTEC Plus VMW 23CS/1-5 Cf (n-es) + sensoHOME Radio
Vaillant ecoTEC Plus VMW 23CS/1-5 Cf boiler + sensoHOME Radio
Heating and hot water for everyday use, combined in a gas boiler.
- Gas
- Natural gas Convertible to propane
- Wi-Fi
- Optional myVAILLANT connect
- Heating
- 3.0-19.8 kW 80/60 °C
- Domestic hot water flow rate
- 11.0 l/min ΔT 30 K
Gas and Wi-Fi: compatibility and accessories
Gas and conversion: It accepts natural gas G20 and conversion to propane G31 through the manufacturer's adjustment procedure. Compatibility with butane G30 is not offered without explicit documentation for this version. The conversion and commissioning are the responsibility of a qualified professional; they are not included in the purchase. Source 1 ↗ Source 2 ↗
Wi-Fi and supply: myVAILLANT Plug & Play connectivity is optional. The environment control of the pack does not equate to having Wi-Fi: it requires the compatible module, purchased separately. Source 1 ↗ Source 2 ↗
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.
The interior of your boiler
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 Plus VMW 23CS/1-5 Cf (n-es) + sensoHOME Radio
- Brand
- Vaillant
- Model
- Vaillant ecoTEC Plus VMW 23CS/1-5 Cf boiler + sensoHOME Radio
- Status
- New
- Supply scope
- Equipment without installation; please confirm the accessories for this configuration.
- Shipping
- Included in mainland Spain. Please confirm the deadline.
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)
- 3.0-19.8 kW
Heating - Heating power G20 (50/30 °C)
- 3.4-21.7 kW
Heating - Heating thermal load G20 (Hi)
- 3.2-20.4 kW
Heating - Adjustable flow temperature
- 30-80 °C
Heating - Maximum heating pressure
- 3 bar
Heating - Maximum power DHW G20
- 23.0 kW
Hot water - Nominal thermal load DHW G20 (Hi)
- 23.5 kW
Hot water - Specific flow rate D (ΔT 30 K, EN 13203-1)
- 11.0 l/min
Hot water - Declared domestic hot water flow rate (ΔT 25 K)
- 13.2 l/min
Hot water - Minimum starting flow rate
- 2 l/min
Hot water - Domestic hot water flow limiter
- 8.7 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 - Heating energy class
- A
Energy and control - Energy class of domestic hot water
- A
Energy and control - Sanitary profile
- XL
Energy and control - Standby power consumption
- Less than 2 W
Energy and control - myVAILLANT connectivity
- Optional Plug & Play
Energy and control - Dimensions (height x width x depth)
- 720 x 440 x 348 mm
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 - Superior distance with 60/100 outlet
- 165 or 248 mm, according to the installation plan
Dimensions and installation - Higher distance with outlet 80/80
- 220 mm
Dimensions and installation - Maximum distance with outlet 80/125
- 276 mm
Dimensions and installation - Natural gas connection pressure G20
- 20 mbar
Gas - Maximum electrical consumption in heating
- 87 W
Energy and control - Maximum electrical consumption in domestic hot water
- 95 W
Energy and control - Nominal power supply
- 230 V / 50 Hz
Energy and control
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 plus VM/VMW installation manualPDF · 96 pages · VaillantView original on the manufacturer's website ↗
- ecoTEC plusPDF · 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
Is the Vaillant ecoTEC plus VMW 23CS suitable for a 100 m² apartment?
It can fit if the calculated thermal load of the house is within its range of 3.0 to 19.8 kW at 80/60 °C. For example, 100 m² with assumed losses of 80 W/m² would require 8 kW; this is not a surface approved by Vaillant. It is also important that the minimum of 3.0 kW is suitable for mild days and rooms with low demand. Insulation, climate, ventilation, and emitters must be included in the calculation. The sanitary choice is evaluated separately: Vaillant directs the 23CS towards a full bathroom and kitchen, without promising simultaneous uses.
Can the ecoTEC plus 23CS supply two showers at the same time?
It should not be chosen assuming that usage. Two showers at 8 l/min require 16 l/min; with an inlet water temperature of 10 °C and usage at 40 °C, they demand a temperature rise of 30 K. The 23CS states 11.0 l/min specific at ΔT 30 K, which is below that example. The manual also indicates a limiter of 8.7 l/min: this is not the same data as the specific flow rate or the mixed flow rate of the shower. It is necessary to check the network pressure, temperature, and actual consumption; the limiter should not be removed or modified in an attempt to reach an advertised flow rate.
Does it have a tank or just micro-accumulation?
The VMW 23CS is a mixed model with micro-accumulation, not a VMI with accumulation. This function helps with the initial response, but it does not provide a reserve of several tens of liters for multiple bathrooms. During prolonged consumption, its 23 kW of domestic hot water and the flow rate available under real conditions are important. If you need a hot water reserve, you must select an expressly compatible accumulation solution; do not assume it in this VMW.
Does the VMW 23CS fit in a kitchen cabinet?
The body measures 720 mm in height, 440 mm in width, and 348 mm in depth. Additionally, the manual requires 5 mm on each side, 180 mm below, and 500 mm of front access. Above, it requires 165 or 248 mm with a 60/100 outlet according to the plan, 220 mm with an 80/80, or 276 mm with an 80/125. It is not enough for the door to close: maintenance access and space for connections and drainage must be maintained. The professional must check the specific installation.
What do I gain by switching from ecoTEC plus 23CS to 26CS?
Both have the same heating range with natural gas G20: 3.0-19.8 kW at 80/60 °C and 3.4-21.7 kW at 50/30 °C. They also share the same dimensions. The 26 increases domestic hot water from 23.0 to 25.7 kW and the specific flow rate at ΔT 30 K from 11.0 to 12.3 l/min. Both have a limiter of 8.7 l/min. The change provides sanitary capacity for testing, not more maximum heating power or an automatic guarantee of two simultaneous showers.
Does SensoHOME Radio allow you to control this boiler from your mobile?
Radio identifies the wireless communication option of the ambient control; it does not by itself mean that the system has Internet access. The technical sheet distinguishes sensoHOME, available wired or via radio, from the optional myVAILLANT Plug & Play connectivity. For mobile control, the compatible module, its configuration, and the specific supply components must be checked. Wi-Fi or an additional module is not assumed to be included just because of the word Radio.
Does the price include installation and shipping?
Includes VAT and shipping to mainland Spain. Installation and adaptations are valued separately. Check the contents of the supply before purchasing.
