Almost four-in-ten consumers are unaware of the ban on new gas boilers.
A Which? survey of more than 3,000 people suggests nearly 43% of them are unaware of the need to move to heating technologies with lower carbon footprint.
The research also shows two-fifths do not feel comfortable transitioning to low carbon heating systems.
Nearly 56% of consumers said they are put off changing their home heating system due to costs involved, while a third cited concerns it could lead to increased running costs.
Nearly 79% of Brits would also support a lower or zero tax on energy efficient appliances, according to the research.
Sue Davies, Which? Head of Consumer Rights and Food Policy, said: “Consumers will need a significant amount of support to transition to sustainable heating systems, and it is vital that the government’s net zero policy includes provisions to help people navigate the complex and confusing heating market, through access to the right information, robust consumer protections and if needed, appropriate financial support.”