Possible Clues:

• Beholden for plenty of coal?
• Showing thankfulness
• Appreciative, given this much fuel?
• Give thanks for having such a large, open fire going, by the sound of it
• Thanks to having plenty of fire, by the sound of it
• 'Thanks for a good fire there, by the sound of it (8)'
• Ta for plenty of turf to burn, by the sound of it
• Satisfied when prepared for firing?
• Showing appreciation for supply of fuel?
• Thanks to this, one has a good fire going, it seems