A common source of backdrafting is “orphaned” water heaters. When homeowners replace older furnaces with more efficient models that don’t use the chimney to vent, gas water heaters are often ...

Customers with new high-efficiency furnaces and water heaters that vent through the wall (not into a chimney) should be wary of a buildup of snow or ice around the vent, according to Minnesota ...

If your chimney is also a do-it-all vent for your hot water heater and furnace and it gets blocked by frozen snow and ice, that’s a recipe for disaster. Safety tips for chimneys, heaters in cold ...