I recently had my master bathroom remodeled completely. I put in new toilet, sink, shower, flooring, walls, and new septic lines, trap and new septic lid. After the remodel was completed, I started to smell sulfur. I have flushed the sink, toilet and shower with bleach, vinegar and baking soda. However, the smell is still there. The smell does not seem to come from the shower or the toilet. But, when the heat comes on I smell it all over the house, otherwise, it is just located in the bathroom.

Any ideas as to where and what I should do?

Close drain in sink, run a little water to insure drain is sealed. Place a wet cloth or sponge on shower drain, then put a weight (small bucket or other container filled with water) on it. Run a little water in shower to seal drain. Turn on heat to see if gasses are being pulled in by heating system.

Where is furnace located?