Energy efficient heating

As Britain's biggest generator of zero carbon electricity(1), we're committed to Net Zero by 2050. Our heating solutions can help you lower your home's carbon footprint as well as your energy bills.

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 £136

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 just £136 including the Green Homes Grant or you could get it completely free.

The future of heating is low-carbon heat pumps

from £3,999

With a boiler ban on the horizon, it's a great time to think about replacing your existing gas boiler with an air source heat pump.

We've teamed up with Daikin to offer low-carbon technology that's 4x more efficient than gas with comparable running costs(3)

Gas boiler heating solutions

Replace your boiler 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(4) to replace your boiler.

Next day installation available if booked before 3pm(5).

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(6) compared to manual, static storage systems.

New Quantum heaters are stylish, 27% more efficient than a standard heater(7) 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(8)

Heating and energy-saving advice

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