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

• stone mimicry plant
• stone parsley
• stone pine
• stone pit
• stone plant
• stone's throw
• stone-blind
• stone-broke
• stone-cold
• stone-dead
• stone-deaf
• stone-gray
• stone-grey
• stone-sober
• stonechat
• stonecress
• stonecrop
• stonecrop family
• stonecutter
• stoned
• stoneface
• stonefish
• stonefly
• Stonehenge
• stoneless