Chippenham Magistrates Court has fined a Wiltshire company £1,000 with £500 costs for committing a number of offences under the Consumer Protection from Unfair Trading Regulations 2008.
Leslie McGinley, trading as Warm Home HPS Ltd, pleaded guilty to eight offences, including the illegal use of the HETAS logo on documents, websites and vehicles.
The company had previously registered with HETAS, but this was revoked followed a customer complaint.
After its warnings to discontinue use of the logo were ignored, HETAS contacted Wiltshire Trading Standards, supplying witness statements to support its case.
Bruce Allen, HETAS chief executive, said: “Protecting the HETAS brand is important for all those businesses that are registered with us, as well as for consumers who place their trust in those businesses.
“We work closely with trading standards to try and prevent mis-use of the HETAS logo, and are pleased that Wiltshire trading standards were able to successfully prosecute in this particular case.”
HETAS is the only dedicated competent persons scheme for solid fuel and biomass, with approval schemes for installers, microgeneration, products, retailers and fuels.