Neither receipt of the approval required hereunder nor any information or opinion given as a result of the inspections above provided for shall be construed as a guaranty by the town, its employees or agents that the appliance is free from defects in workmanship, materials or installation methods, and neither the town nor its officials, agents or employees shall become liable to any person as a result of this chapter for damage, injury or loss caused in whole or in part by the use or installation of any solid-fuel-burning appliance.