Sinclair
Marvin SIH/SOH-12BIM
The Sinclair Marvin is a feature-rich R32 inverter split that focuses on quiet running and air quality, adding UV-C sterilization, a hidden display and built-in Wi-Fi at a sensible mid-market price.
€650
List priceIndicative EU price for the SIH/SOH-12BIM indoor plus outdoor set
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Performance
- Cooling capacity
- 3.5 kW · 12,000 BTU
- Heating capacity
- 3.8 kW
- Room coverage
- 25–35 m²
- SEER (cooling)
- 7.2
- SCOP (heating)
- 4.1
- Energy class (cooling)
- A++
- Energy class (heating)
- A+
- Annual energy (cooling)
- Not published
Noise, size & features
- Model number
- SIH/SOH-12BIM
- Indoor noise
What is good
- Very quiet, dropping to around 19 dB(A) on the lowest fan speed
- Wi-Fi module included as standard
- UV-C air sterilization and hidden display
- I FEEL comfort sensing and 7 fan speeds
What to watch
- Mid-pack SEER of 7.2 rather than top-tier
- Niche brand with a smaller service footprint
- Heating rated A+ only
Installation & the rules that apply
This is a single split. This is where regulation bites. Breaking into the refrigerant circuit must be done by an F-gas certified installer (in the EU and UK), and single-split systems may use refrigerant indefinitely only if its GWP is under 750 (R32 qualifies). DIY voids the warranty, home insurance and is an offence. The outdoor unit alters the facade, so a prior declaration to the town hall (e.g. France), planning permission, or freeholder, landlord and condominium consent is commonly needed, plus heritage rules in protected zones and minimum-distance and noise rules toward neighbours.
Certified installer
R32
Common questions about the Sinclair Marvin SIH/SOH-12BIM
- How loud is the Sinclair Marvin SIH/SOH-12BIM?
- 19 dB(A) indoors, quieter than a whisper.
- How energy-efficient is the Sinclair Marvin SIH/SOH-12BIM?
- Its efficiency rating is SEER 7.2.
- What size room does the Sinclair Marvin SIH/SOH-12BIM cool?
- It is rated to cool a room 25–35 m² (3.5 kW · 12,000 BTU).
- Do I need a professional to install the Sinclair Marvin SIH/SOH-12BIM?
- Yes. As a single split it needs a certified installer. Usually needs permission.
- Does the Sinclair Marvin SIH/SOH-12BIM heat as well as cool?
- Yes. It also heats, rated 3.8 kW.
Is a split even the right type?
Compare splits against the other types on price, noise, efficiency and install.
