There is a temperature difference between the air inside of the fireplace and the air in the room. Warmer air has more moisture than cooler air. When the fireplace is turned on, the temperature inside the fireplace begins to warm up and condensation forms on the cooler glass. The water vapor in the warmer air is condensing on the cooler surface. As the fire gets hotter, usually within a few minutes, the glass will clear. Although it can be a bit annoying, this is not uncommon and really nothing to be concerned about.

Below is a list of fireplace and grill stores that service Ontario (ON)
Ajax, ONTopfire Fireplace and Barbecue Inc. | ![]() | Visit Store Page |
Aurora, ONTopfire Fireplace and Barbecue Inc. | ![]() | Visit Store Page |
Belleville, ONFriendly Fires | ![]() | Visit Store Page |
Burlington, ONBarbecues Galore | ![]() | Visit Store Page |
Cambridge, ONBast Home Comfort Inc. | ![]() | Visit Store Page |
Carleton Place, ONFriendly Fires | ![]() | Visit Store Page |
Cobourg, ONFriendly Fires | ![]() | Visit Store Page |
Collingwood, ONChantico Fireplace Gallery Inc | ![]() | Visit Store Page |
Concord, ONThe Fireplace Specialist | ||
Etobicoke, ONBarbecues Galore | ![]() | Visit Store Page |
Goderich, ONHuron Fireplaces | ||
Hamilton, ONChadwicks & Hacks | ![]() | Visit Store Page |
Huntsville, ONThe Fireplace King inc. | ||
Kincardine, ONChantico Fireplace Gallery Inc | ![]() | Visit Store Page |
Kingston, ONFriendly Fires | ![]() | Visit Store Page |
London, ONPorky's BBQ & Leisure | ![]() | Visit Store Page |
Markham, ONKastle Fireplace LTD | ![]() | Visit Store Page |
Meaford, ONChantico Fireplace Gallery Inc | ![]() | Visit Store Page |
Mississauga, ONOntario Hearth Fireplaces | ![]() | Visit Store Page |
Niagara Falls, ONThe One Stop Fireplace Shop LTD | ![]() | Visit Store Page |
North York, ONThe Fireplace Company | ||
Oakville, ONBarbecues Galore | ![]() | Visit Store Page |
Orangeville, ONIts in the Shed | ||
Ottawa, ONCapital BBQ | ![]() | Visit Store Page |
Pembroke, ONPerformance Woodburning & Gas | ||
Penetanguishene, ONHome & Cottage Centre | ![]() | Visit Store Page |
Peterborough, ONFriendly Fires | ![]() | Visit Store Page |
Sarnia, ONA Village Fireplace Shop Ltd. | ![]() | Visit Store Page |
Stratford, ONTri-County Brick | ![]() | Visit Store Page |
Sudbury, ONNordic Energy Systems LTD | ![]() | Visit Store Page |
Thunder Bay, ONBob's Woodburners & Fireplaces | ![]() | Visit Store Page |
Toronto, ONMarsh's Stoves & Fireplaces | ![]() | Visit Store Page |
Waterloo, ONBast Home Comfort Inc. | ![]() | Visit Store Page |
Windsor, ONScott's Fireplace Select, Inc. | ![]() | Visit Store Page |
For more information, contact your local fireplace and grill store.