1. A boiler that supplies central heating and/or hot water, fitted into a fireplace recess, normally behind a gas fire

Derived forms: back boilers

• falseness
• falsetto
• falsie
• falsifiable
• falsification
• falsifier
• falsify
• falsifying
• falsity
• Falstaff
• Falstaffian
• falter
• faltering
• falteringly
• falun gong
• fame
• famed
• familial
• familial hypercholesterolemia
• familiar
• familiar spirit
• familiarisation
• familiarise
• familiarised
• familiarising