Library of Ideas: Insulate your home
Improve the insulation in your home – use draught excluders for outside doors, seal gaps around windows and doors using silicone sealant, keep internal doors closed to keep the heat in
Further information:
https://www.energy.gov/energysaver/insulation
https://energysavingtrust.org.uk/energy-at-home/reducing-home-heat-loss/
https://www.uswitch.com/insulation/guides/home-insulation/
Time commitment: MEDIUM