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Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump

In StockEnergy A++

Available to order — dispatched on the lead time shown below.

£552.240

Trade pricing available — apply or sign in for your trade rate

Dispatched in 2-3 working days

UK-Wide Delivery

Free UK mainland delivery on in-stock units

🇪🇺 EU Delivery available

Dispatched in 3–7 working days, then 5–10 working days EU transit

Orders under €150 ship VAT-paid at checkout (IOSS, no charges on delivery). Orders of €150 or more ship DDU — import VAT and customs duty are collected by the courier on delivery.

Retail prices include VAT.

Engineered for medium-sized residential rooms and light commercial applications, the Senville Leto 12000 BTU wall-mounted inverter split system ensures efficient year-round climate management. Its variable-speed compressor technology provides swift cooling during humid summer peaks and dependable warmth during cold British winters. Equipped with integrated Wi-Fi connectivity, the system enables effortless temperature adjustment from smartphones or through hands-free Amazon Alexa voice commands. Additional high-value features include an intelligent dehumidification setting, turbo conditioning for rapid comfort, and an whisper-quiet sleep mode that keeps operating noise to an absolute minimum. Combining cost-effective performance with resilient build quality, this reverse-cycle air conditioner represents an ideal heating and cooling installation for living rooms, master bedrooms, and small retail premises.

Need it installed?

We'll match you with a local HVAC engineer.

Smart-home ready

Connects natively with the systems below — control by app or voice.

Smart guide

Amazon AlexaGoogle Home

Free UK mainland delivery on in-stock units
Manufacturer warranty included
14-day returns

Cooling Capacity

12,000 BTU

Energy Rating

A++

Recommended Room

Up to 35m²

Technical documents & videos

Official Senville manual

The manufacturer's PDF for this model is being sourced and will be downloadable here.

All Senville catalogues and rangesMissing a document? Ask our team and we will send it over.

Full Specifications

Cooling Capacity12,000 BTU

Recommended Room SizeUp to 35m²

Energy RatingA++

Smart HomeAmazon Alexa, Google Home

Noise Level—

CategorySplit System AC

SKUSENL-12CD-UK

Physical dimensions

Exact dimensions for this model are being confirmed with Senville — ask us and we will send the cut sheet with mounting and clearance figures.

Description

Compare similar units

Side-by-side specs for other split system ac in a similar BTU range.

This Unit

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Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump

Samsung

Samsung 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Midea

Midea Comfee 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

TCL

TCL 12000 BTU Smart A++ Wall Mounted Split Air Conditioner with Heat Pump

Cooling Capacity

12,000 BTU

Room Size

Up to 35m²

—

Energy Rating

A++

Heating Capable

Yes (heat pump)

Smart Home

Amazon Alexa, Google Home

Yes

Stock

In Stock

Price inc VAT

£552.24

£604.97

£417.97

£405.90

Common questions about the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump

How many BTU is the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump?

The Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump has a cooling capacity of 12,000 BTU, suitable for Up to 35m².

What room size is the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump suitable for?

The Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump is recommended for rooms Up to 35m².

Can I install the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump myself?

No — this unit requires professional installation by a qualified F-gas engineer. Use our Find an Installer service to get matched with a local HVAC professional.

Is the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump smart-home compatible?

Yes — the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump supports Amazon Alexa, Google Home for app and voice control.

How long does delivery of the Senville Leto 12000 BTU Wall Split Air Conditioner & Heat Pump take?

This unit is dispatched in 2-3 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.

Annual energy savings estimate

How much this A++-rated unit could save versus a standard C-rated model, based on your usage.

Electricity tariff (£/kWh)Hours per dayCooling months/year

This unit

97 kWh/yr

EER 13

Standard model

158 kWh/yr

EER 8

Est. saving

£16.44

61 kWh/yr less

Estimate based on the unit's energy-rating efficiency factor and cooling capacity (12,000 BTU). Actual savings vary with room size, climate and usage patterns.

Winter heating cost: this AC vs electric heaters

This unit reverses to heat your room in winter. Based on its 4 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.

Electric heater / season

£712

This AC / season

£237

You save / season

£475

~67% less electricity

Heating method	Electricity / season	Cost / season	Efficiency
This heat-pump AC	879 kWh	£237	Up to 300%
Plug-in electric heater	2638 kWh	£712	100%
Electric storage heater	2638 kWh	£712	100%

Heat output estimated from this unit's 12,000 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →

Share your savings

This heat-pump AC costs only £237/season to heat a room vs £712 for an electric heater - that's £475 saved. https://stockool.store/products/senville-leto-12000-btu-wall-split-air-conditioner-heat-pump

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