Energy efficient heating and air conditioning

As Britain's biggest generator of zero carbon electricity(1), we're committed to Net Zero by 2050. Our heating and air conditioning solutions can help you lower your home's carbon footprint and keep your home at the perfect temperature.

Home insulation infographic showing where heat escapes from a house. Can't see the image? Read what it says:

Insulate your home

Waste less energy and save on heating - from £800 professionally installed

Why spend money heating your home for it to escape outside? That's what you could be doing if your home isn't properly insulated.

Adding insulation to your loft, walls and floor can save you up to £530 per year(2), wasting less energy and lowering your home's carbon emissions.

Insulation starts from £800 professionally installed or you could get it completely free with the ECO scheme.

Boxt air conditioning unit

Keeping your cool this Summer

With temperatures starting to climb. There's no better time to invest in an air conditioning unit. These units work really well to heat individual rooms in the winter too.

We've teamed up with BOXT to offer customers a fixed price air conditioning package. Book before 4 pm and you can get your new unit installed the next day.

The future of heating is low-carbon heat pumps

Save £1,597 over 10 years and reduce your carbon emissions by 64% against a new boiler(3)

You can also receive earnings of £7,574 over 7 years from the Renewable Heat Incentive to help offset the cost of your upgrade.

We've teamed up with Daikin to offer low-carbon technology that's three and a half times more efficient than gas with comparable running costs(4)

Starting from £8,999 for an average 3 bed home: includes 7kw low-temperature Air-Source Heat Pump, installation, new water tank and radiators with a 5-year warranty.

Gas boiler heating solutions

Keep your boiler working efficiently and safely, or replace it with a new A-rated boiler that can lower your bills as well as your carbon footprint.

BOXT gas safe boiler installers

Replace your boiler

New boilers from £1,920

We’ve teamed up with BOXT, the number one rated gas installation and heating service on Trustpilot(5) to replace your boiler.

Next day installation available if booked before 3pm(6).

Boiler engineer emergency repair investigation

Look after your boiler with our maintenance and support plans

From £7.33 a month for 12 months(7)

Receive an annual service and ongoing maintenance for your boiler with a boiler maintenance and support plan.

Gas boiler engineer repairing a boiler under insurance

Multi-cover home emergency insurance helping make life easier

From £13.63 a month for 12 months

BoilerCare Total looks after your boiler, controls, heating system and many home emergencies. Giving you peace of mind by providing up to £2,000 in total for temporary repairs for home emergency claims.

Gas boiler service

Get your boiler back up and running with Repair & Care

From £27.99 a month for 12 months(8)

With Repair & Care, your initial repair will come with the no fix, no fee guarantee. So if the engineer can't fix your fault or deems your boiler to be beyond economic repair, you'll get a full refund.

Take back control with Dimplex Quantum storage heaters

from £2,900 installed for a typical 2 bed home

With a Dimplex Quantum storage heater, you could see savings of up to £390 a year(9) compared to manual, static storage systems.

New Quantum heaters are stylish, 27% more efficient than a standard heater(10) and put you in control of when you release the heat built up overnight.

Say goodbye to cold evenings and hello to great savings.

How much carbon does your heating generate?

Taking a step to lower your home's carbon output doesn't have to cost the earth.

Electric heating is replacing gas as a cleaner alternative, like electric cars are replacing petrol and diesel.

See how different heating fuels compare:

Electric heating

Air source heat pump


880kg CO2 per year

  • Renewable heat
  • Low carbon emissions
  • 20 years or more lifespan

Gas heating

Gas boiler


2770kg CO2 per year

  • Fossil fuel
  • Medium carbon emissions
  • 10 to 15 years lifespan


Oil heating

Oil boiler


3960kg CO2 per year

  • Fossil fuel
  • High carbon emissions
  • 10 to 15 years lifespan

How we calculated the carbon output(11)

Heating and energy-saving advice

modern conservatory interior with dining table

Conservatory Insulation: Make it a Room to Use All Year Round

Many people invest in a conservatory, only to find that it’s a struggle to keep it warm in the winter and cool in summer. But it doesn’t have to be this way. Our blog covers the different things you can do.

View our tips on conservatory insulation

Make your home heating even smarter

Our range of smart products can help you save money without even thinking about it.

Picture of smart radiator valves

Smart radiator valves

There’s no point heating an empty room, but manual radiator valves rely on you remembering to turn them down. Let a smart radiator valve do that for you.

Picture of a smart thermostat

Smart thermostats

Our great range of smart, learning thermostats will adjust your heating automatically depending on the weather, the time of day and your settings.

Picture of a smart home assistant

Smart voice control

Control your home's heating with a smart home assistant such as Amazon Echo or Google Home, which also gives you remote control via their smartphone apps.

Watch video: How to install smart meters safely during COVID-19

Are you an existing customer? A smart meter could help you save energy

Smart meters show you how much you’re spending in pounds and pence, and send your meter readings automatically so you receive more accurate bills. Your smart meter comes with an in-home display to help you see your energy use as you're using it.

Find out about smart meters