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Air conditioning that heats too

Fern installs fixed air conditioning that cools your rooms in summer and warms them in winter, with a separate control for each room.

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An open kitchen and lounge with a slim air conditioning unit

What is an air-to-air heat pump?

An air-to-air heat pump is the technology behind the air conditioning we install. It works in both directions: moving heat outside to cool a room, or bringing warmth inside to heat it.

Air conditioning compared with your main alternatives

A working gas boiler
It makes heat and sends it through radiators. Our air conditioning moves warmth straight into the rooms you choose and also cools them. The illustrative running cost can sit near gas, so compare the assumptions rather than expecting a dramatic saving. See the worked figures.
An air-to-water heat pump
It feeds radiators or underfloor pipes and usually needs a hot-water cylinder. Our air conditioning uses indoor units instead, so it is a different answer for homes that want room-by-room heating and cooling.
A portable air conditioner
It cools one room through a hose in an open window. Our fixed air conditioning leaves the window shut, drains condensate outside and can warm the room in winter.

Why it can use less electricity to heat a room

3 – 3.5×

as much heat from each unit of electricity

In heating mode, our air conditioning moves heat in from outside instead of generating it like a plug-in electric heater. For every unit of electricity it uses, it can move around three to three and a half units of heat into the room.

For the same warmth, that can mean using around a third of the electricity of a direct electric heater. The exact running cost still depends on the room, the weather and how you use it. We measure the room before recommending a system.

What you’ll know before you decide

  1. 01

    The unit for each room

    We work with Daikin, Mitsubishi Electric and Fujitsu. We’ll recommend a unit for each room and share its brand, model and output before you decide.

  2. 02

    How it will look

    We’ll agree the indoor and outdoor positions, pipe routes, trunking and anything that will be boxed in, so you know what remains visible.

  3. 03

    Property checks

    Many house installations can proceed under Permitted Development, subject to its conditions. Flats, listed buildings and conservation areas need further checks.

  4. 04

    One clear price

    Electrical work, installation time and the written guarantee are brought together in one clear price.

How Fern turns your rooms into a clear plan

We measure how each room gains and loses heat, agree the indoor and outdoor positions, then trace the pipe and drain routes. Before work begins, we’ll confirm the design and whether installation is expected to take one day or two.

On the day, we protect the rooms and test both modes with you. The installation comes with a written guarantee.