My husband is changing all of our switches, light switch plates , outlets, and outlet plates to white. We've had no issues until he did the ones in our foyer. There are three places in our house where....not sure what this is called....you can cut the lights on using a switch at either end of the room. In two of the rooms, there has been no problem, but after he did the light switches in the foyer, the light switch next to the front porch light switch must be in the up position for the other foyer single switch to work. He didn't do anything differently in the other two places where there are switches like this - the hall and the eat-in-kitchen. Any suggestions? This may be unrelated, but since it's electrical, I thought it might be worth a mention. A few weeks ago we had an unusual smell one night when our central gas heating unit came on. It smelled kind of "fishy". The smell was limited to two rooms in the house - both bedrooms - that are at opposite ends of the house. We cut the heat on for the first time a month prior to that, so it wasn't that first time "dust burning off" smell you get from central heating units at the beginning of the cooler season. The vents are in the ceiling. I looked up some information online and found people talking about this "fishy" smell. Almost every one of them spoke of problems at the electrical panel and how they were told they were in serious danger of a house fire. We checked the panel and found nothing out of the ordinary. We checked the heating unit and found nothing unusual either. We didn't discover it until the next day , but our front porch lights -the bulbs were fairly new- both blew the night we smelled the fishy smell. The day after that, we lost two bulbs in the only bedroom that didn't have the fishy smell. They were maybe a month old. The day after that, we had an issue with a GFI outlet in the Master Bathroom. The Master Bedroom was one of the rooms with the odor when the heat kicked on. I keep a nightlight plugged into the GFI outlet that is next to the toilet. (It is under the switch for the whirlpool tub.) When I plugged the nightlight in and cut it on, there were sparks. The nightlight was ruined and smelled like smoke. I couldn't reset the outlet, and another outlet (next to the sink) wasn't working either at that point. I went to the garage where the electrical panel is located and saw that the breaker for the bathroom outlets was tripped. I put it back where it should be, but the GFI outlet still wasn't working, and I couldn't reset it. At this point, we were above our DIY paygrade, so we called an electrician. He looked at everything he knew to look at, but he couldn't find anything wrong. Mysteriously (or miraculously!), the GFI outlet was working when he got here. We had a neighbor whose house burned down two weeks ago because a fire started over the garage. She'd just had an electrician out to rewire the house. Two days ago, we lost both flood lights out back and the same time. The bulbs had a one year warranty, and they are only about a month old. The same day that happened (2 days ago), we lost 2 bulbs in the same bedroom mentioned above. Those bulbs were replaced when the last ones blew a few weeks ago. We're a little skittish and respectful concerning electricity. Thanks for any help you can give. We don't believe this is a bulb problem since we're using different types and brands.

[left]I have a duplex built in 1900. The chimney goes from basement through the roof. The chimney is aprx 36” x 18”. It does have two vent pipes for the boilers running through it but is otherwise obsolete. [left]Can I use it to run pvc conduit through to run wiring for washer and dryers in each level? [/left][/left]