Air-to-air heat pumpsfor heating and coolingin Bournemouth homes
One system that warms your rooms efficiently in winter and cools them in summer. Potentially lower electricity use than direct electric heating, depending on the system and operating conditions.
- Free site survey & quote
- Manufacturer's warranty on new equipment
- Two-person team
- Open 8am–5pm, 7 days
- Homes only
Overview
What an air-to-air heat pump is
An air-to-air heat pump is a split air conditioning system used for heating as well as cooling. In heating mode it extracts heat from the outside air, even on cold days, and delivers it into the room through the indoor unit. In summer the process reverses to cool the room.
It suits homeowners who want efficient heating in rooms the central heating struggles with, those replacing electric panel heaters or storage heaters, and anyone who wants both cooling and heating from one neat installation.
It's worth considering when a room is always cold in winter and hot in summer, such as a loft conversion, extension, garden room or conservatory. It can also take load off an ageing boiler by heating the rooms you use most.
Professional design matters because a heat pump must be sized for the room's winter heat loss as well as summer heat gain. Correct installation, pressure testing and commissioning ensure it delivers efficient heating on cold days rather than struggling.
What's at stake
The cost of inefficient heating
Many homes heat difficult rooms in the most expensive way possible. Here's what that usually looks like.
High electric heating bills
Plug-in heaters and panel heaters turn one unit of electricity into one unit of heat. A heat pump can deliver several units of heat for each unit of electricity.
Cold rooms nobody uses
Extensions, lofts and garden rooms often sit unused for months because they're too cold to be comfortable.
Two systems, double the hassle
Separate heaters and fans or portable coolers mean more clutter and more running costs.
Uneven comfort
Rooms far from the boiler or with poor radiators never feel warm while the rest of the house is too hot.
Common mistakes homeowners make
- ✕Sizing a unit only for summer cooling and expecting it to heat well in winter.
- ✕Placing the outdoor unit where it can't drain defrost water away.
- ✕Assuming heat pumps don't work in UK winters: modern units heat efficiently in typical South Coast temperatures.
- ✕Comparing running costs without considering efficiency (SCOP).
Our process
How the job runs, step by step.
- Step 1
Survey
We assess each room's heat loss and gain, and how you want to use it.
- Step 2
Recommendation
We recommend a system sized for both heating and cooling, with clear efficiency figures.
- Step 3
Installation
Indoor and outdoor units, pipework, cabling and drainage are fitted neatly.
- Step 4
Commissioning
The system is pressure tested, evacuated and tested in heating and cooling modes.
- Step 5
Handover
We show you how to set it for efficient heating and explain the manufacturer's warranty and any registration requirements.
Benefits
What you get from doing it properly.
Fast warm-up
Rooms heat quickly, without waiting for a whole central heating system.
Safe heat
No exposed hot surfaces, no fuel on site and no combustion in the room.
Long-lasting
A well-installed, serviced system lasts many years in both heating and cooling.
Lower running costs
Efficient heating compared with direct electric heaters, measured by SCOP.
All-year comfort
The same system heats in winter and cools in summer.
Peace of mind
One team surveys, fits and maintains your heat pump.
In detail
Air-to-air heat pumps explained
How they work
A heat pump moves heat rather than generating it. Refrigerant absorbs heat from outdoor air at the outdoor unit, the compressor raises its temperature, and the indoor unit releases that heat into the room. A reversing valve lets the same system run in cooling mode.
Heating efficiency is shown by SCOP (Seasonal Coefficient of Performance). A higher SCOP means more heat for every unit of electricity. In very cold, damp conditions the outdoor unit periodically defrosts itself, which is normal.
Equipment
Systems use inverter compressors, modern refrigerants such as R32, insulated copper pipework and indoor units that can be wall-mounted or floor-standing. Floor consoles can be particularly effective for heating, as warm air is delivered at low level.
Outdoor units are mounted on brackets or ground stands with room to drain defrost water and enough clearance for airflow.
Air-to-air vs air-to-water
Air-to-air heat pumps heat and cool rooms directly through indoor units. Air-to-water heat pumps heat water for radiators or underfloor heating and hot water, and don't usually provide cooling.
Our service covers air-to-air systems, ideal for heating and cooling individual rooms or several rooms with a multi-split.
Where they work best
Loft conversions, extensions, garden rooms, conservatories, home offices and living rooms that are cold in winter and warm in summer. Also homes currently relying on electric heaters for some rooms.
We install air-to-air heat pumps in homes across Bournemouth, Poole, Christchurch and the wider Dorset and Hampshire area. We work only in domestic properties.
Getting the best from heat pump heating
Heat pumps work best when they run steadily rather than being switched on and off at full blast. Setting a comfortable temperature and leaving the system to maintain it, or using a timer to bring the room up gently before you need it, is usually more efficient than heating from cold each time.
Keep doors to heated rooms closed where practical, make sure curtains don't block the indoor unit, and keep the outdoor unit clear of leaves and snow so it can breathe. If you see the outdoor unit steaming briefly on a cold, damp morning, that's normal defrost operation. Annual servicing keeps coils clean and performance high, which matters even more for a system that's working through the winter as well as the summer. We'll show you the best settings for your rooms at handover.
Where we work
We cover homes across Dorset and Hampshire, including Bournemouth, Christchurch, Poole, Wareham, Swanage, Weymouth, Ferndown, Wimborne Minster, Ringwood, New Milton, Lymington and Dorchester. See air conditioning service areas, book a free air conditioning survey, or go back to the homepage.
Working with us
What to expect when you book air-to-air heat pumps.
South Coast Air Con Ltd operates as a two-person team specialising in domestic air conditioning. We offer free surveys and quotes for new installations, followed by installation and handover. Servicing and maintenance are available afterwards.
We arrange a time that suits you, seven days a week between 8am and 5pm, including weekends. That makes it easier to book a visit without taking time off work. Before we start, we'll walk you through what we're going to do, where we'll be working and how long it should take.
Our aim is careful workmanship suited to your home. During the survey, we discuss where equipment and pipework can go. Installation includes testing the system and explaining how to use it at handover.
Clear prices, simple payment
For new installations the site survey and quote are free, with no obligation to go ahead. We provide a written quote so you can review the proposed work and price. You can pay by bank transfer or by card through payment links from Tide or our accounting software.
Homes only, by choice
We only work in people's homes. That focus shapes everything: quiet unit choices for bedrooms, tidy pipe routes that respect how your house looks, outdoor positions that take your neighbours into account, and advice based on how families actually use their rooms.
Aftercare that continues
Air conditioning works best when it's looked after. Once your job is complete, servicing and maintenance are available. New equipment comes with the manufacturer's warranty, and we'll explain the terms for the equipment you choose.
Not sure where to start? Book a free site survey or contact us with your question.
FAQs
Air-to-Air Heat Pumps: common questions
How much does an air-to-air heat pump cost?+
Cost depends on room size, number of rooms and the system chosen. A free site survey gives you a written quote with no obligation.
How long does installation take?+
Timing depends on the system, access and work required. Contact us to discuss the likely duration before booking.
Do heat pumps work in winter?+
Yes. Modern air-to-air heat pumps heat efficiently in typical South Coast winter temperatures.
What warranty is included?+
New equipment comes with the manufacturer's warranty, explained at handover.
How long do heat pumps last?+
Lifespan varies with the equipment, installation, usage, maintenance and environment. No fixed lifespan is guaranteed.
Are you available for emergencies?+
We're not a 24-hour service. We're open 8am–5pm, seven days a week on 07815 604730.
Can it replace my boiler?+
Air-to-air systems heat rooms but don't provide hot water. Many homes use them alongside existing heating for the rooms used most.
Do you install heat pumps in Dorchester and Weymouth?+
Yes, along with Bournemouth, Poole and across Dorset and Hampshire.
All home air conditioning services

Air Conditioning Installation
Home air conditioning installation in Bournemouth, Poole and across Dorset. Single and multi-split systems, free site survey and manufacturer's warranty.
Explore service
Air Conditioning Servicing
Domestic air conditioning servicing in Bournemouth, Poole and across Dorset. Filter, coil and drain cleaning plus full performance checks.
Explore service
Maintenance & Aftercare
Ongoing air conditioning maintenance and aftercare for homes in Bournemouth, Poole and across Dorset & Hampshire. Keep your system efficient.
Explore service
Single-Split System Installation
Single-split air conditioning installed in bedrooms, offices and living rooms across Bournemouth and Dorset. Free survey, manufacturer's warranty.
Explore service
Multi-Split System Installation
Multi-split air conditioning for several rooms from one outdoor unit. Installed in homes across Bournemouth and Dorset. Free survey and quote.
Explore service
Free Site Survey & Quote
Book a free air conditioning site survey and written quote in Bournemouth, Poole and across Dorset & Hampshire. No obligation, no pressure.
Explore service
Repair & Fault Finding
Domestic air conditioning repair and fault finding in Bournemouth, Poole and across Dorset. Not cooling, leaking, noisy or showing an error? We can help.
Explore service
Air-to-Air Heat Pumps
Air-to-air heat pumps installed in homes across Bournemouth and Dorset. Efficient heating in winter and cooling in summer from one system.
Explore service
Bedroom & Loft Air Conditioning
Bedroom and loft conversion air conditioning in Bournemouth and Dorset. Quiet, efficient systems for better sleep. Free survey and quote.
Explore service
Conservatory, Garden Room & Home Office
Air conditioning for conservatories, garden rooms and home offices in Bournemouth and Dorset. Use the room all year round. Free survey.
Explore service
Replacement & Upgrades
Replace or upgrade an old, inefficient or failing air conditioning system in Bournemouth and Dorset. Free survey and honest advice.
Explore service
Leak Testing & Refrigerant Re-Gas
Air conditioning leak testing and refrigerant re-gas for homes in Bournemouth, Poole and across Dorset. Find the leak, fix it, restore performance.
Explore service

Warm in winter, cool in summer, one system.
Book a free survey and we'll size a heat pump for your rooms.
Free survey · Manufacturer's warranty · Open 8am–5pm, 7 days
