About Nesta

Nesta is an innovation foundation. For us, innovation means turning bold ideas into reality and changing lives for the better. We use our expertise, skills and funding in areas where there are big challenges facing society.

Money Saving Boiler Challenge Campaign

In October 2022, Nesta launched the Money Saving Boiler Challenge. This campaign aims to help over one million households change their combi boiler settings to save energy over the winter. Find out more at www.moneysavingboilerchallenge.com.

How much can households save?

The campaign helps households save money by lowering the flow temperature on their condensing combi boilers to 60°C. Our evidence suggests that households could save about 9% on their total gas bill by doing this, assuming their flow temperature is currently set at 80°C.

For a medium-sized household with an annual gas consumption of 12,000 kWh, this would save 1,092 kWh of gas per year which in the winter of 22/23 equated to a saving of £112 annually.

What’s the evidence behind the campaign?

Nesta has sought to create a robust and detailed evidence base on lowering flow temperatures as an energy-saving measure. The work we have done and commissioned so far includes:

  • Reviewing existing evidence on the impact of reducing flow temperatures. This work was carried out by Salford University.
  • Measuring the impact of lowering flow temperatures in the Energy House at Salford University. The Energy House is a testing lab, including a traditional early 20th-century, two-bedroom terraced house, set up in an environmental chamber.
  • Estimating the proportion of UK homes that could successfully lower flow temperatures, based on modelling work by Cambridge Architectural Research.
  • Modelling the savings and impact on room temperatures as a result of changing flow temperatures, in a range of different housing types with occupants and heating preferences. This work was carried out by Energy Systems Catapult.
  • Running a trial to test the effectiveness of our online tool for lowering flow temperatures with customers of the energy saving app Loop. This work was carried out by Nesta and the Behavioural Insights Team, in partnership with Loop.

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This project update is part of our policy library for decarbonising home heating

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Author

Katy King

Katy King

Katy King

Deputy Director, sustainable future mission

Katy is deputy director on Nesta's mission to create a sustainable future, which focuses on decarbonisation and economic recovery.

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Shaan Jindal

Shaan Jindal

Shaan Jindal

Analyst, sustainable future mission

Shaan joins Nesta as an analyst for the sustainable future team.

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Andy Marsden

Andy Marsden

Andy Marsden

Designer, Design & Technology

Andy is a designer for the sustainable future mission.

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Elin Price

Elin Price

Elin Price

Campaigns Manager

Elin joined Nesta in January 2022 as communications and engagement manager in Nesta Cymru and became campaigns manager for Nesta's sustainable future team in February 2023.

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Madeleine Gabriel

Madeleine Gabriel

Madeleine Gabriel

Mission Director, sustainable future mission

Madeleine leads Nesta’s mission to create a sustainable future, which focuses on decarbonisation and economic recovery.

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Andrew Schein

Andrew Schein

Andrew Schein

Lead Behavioural Scientist, sustainable future mission

Andrew was the lead behavioural scientist for Nesta's sustainable future mission.

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Alasdair Hiscock

Alasdair Hiscock

Alasdair Hiscock

Design Lead, Design & Technology

Alasdair is the design lead for Nesta's sustainable future mission, which is focused on the development and testing of innovation to decarbonise homes.

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Ellie Cusack

Ellie Cusack

Ellie Cusack

Senior Campaigns Manager

Ellie is Nesta's Senior Campaigns Manager, responsible for overseeing the development and delivery of communication strategies for Nesta's three innovation missions.

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Oli Berry

Oli is a research advisor in BIT's home affairs, security and Education team. He specialises in conducting quantitative research and has led the design of a number of randomised contro…