
Saunier Duval IsoFast MiConnect MA 35-CS/1-Cf boiler
Heating and hot water for everyday use, combined in a gas boiler.
- Gas
- Natural gas Convertible to propane
- Wi-Fi
- Optional MiGo Link
- Heating
- 4.0–30.0 kW 80/60 °C
- Domestic hot water flow rate
- 19.9 l/min at ΔT 25 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 ↗
Wi-Fi and supply: Optional MiGo Link solution for control from the app. It is purchased separately; the wired or radio controls of the set do not imply that the connection module is included. Source 1 ↗
Description
Saunier Duval 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 Saunier Duval IsoFast MiConnect MA 35-CS/1-Cf
- Brand
- Saunier Duval
- Model
- Saunier Duval IsoFast MiConnect MA 35-CS/1-Cf boiler
- Status
- New
- Supply scope
- Installation not included.
- Shipping
- Included in mainland Spain. Please confirm the deadline.
- Commercial reference
- 125225229
Specifications and dimensions of the model
Compare each magnitude under its testing conditions: heating, domestic hot water, efficiency, and dimensions.
- Useful heating power, minimum-maximum at 80/60 °C (G20)
- 4.0–30.0 kW
Heating - Useful heating power, minimum-maximum at 50/30 °C (G20)
- 4.3–32.5 kW
Heating - Nominal power for domestic hot water
- 34.8 kW
Hot water - Domestic hot water flow rate at ΔT 25 K, inlet 10 °C
- 19.9 l/min
Hot water - Micro-accumulation DHW
- 3 l
Hot water - Seasonal heating efficiency
- 94 %; class A; DHW profile XL
Efficiency and consumption - Dimensions (height × width × depth)
- 893 × 470 × 392 mm
Dimensions and connections - Fuel
- Natural gas; professional conversion to propane G31
Dimensions and connections
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.
The gallery sheets are summaries of Uniclima based on these documents. The external volume diagram does not represent connections, accessories, or service distances.









