Possible Clues:

• Kitchen whistler
• Stovetop whistler
• Boiling point?
• Household whistler
• It whistles when it's ready for English breakfast (In this answer, see letters 1-4)
• Whistler in the kitchen
• Whistler on the range
• It whistles in the kitchen
• Boiler made of wood, condition not fine
• Its home is on the range