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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Units like this are usually quoted and fitted by a specialist installer. Compare it against models you can buy today.
Will it cool your room?
This unit's cooling matches a 35 m² room. Set your room size to check the fit for your space.
Installation cost
$2,500-6,000 fully installed for a typical room (the equipment is roughly $700-1,800, professional installation roughly $1,500-4,000+ depending on line-set run, electrical and access). The unit price you see here is hardware only; installation is the larger, separate cost.
A typical range for this system type, for comparison only, not a quote for this unit. The actual price depends on the line-set run, electrical work and access.
At a glance
Best for buyers who prioritise low noise and air-quality features in a bedroom or living room.
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
- 19 dB(A)quieter than a whisper
- Outdoor noise
- 54 dB(A)
- Indoor unit
- 837 x 293 x 200 mm
- Outdoor unit
- 770 x 555 x 300 mm
- Refrigerant
- R32
- Wi-Fi / app
- Yes
- Outdoor unit needed
- Yes
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 of heating output.
Is a split even the right type?
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