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Rex Cauldwell

Rex Cauldwell's Posts

Quick Fix for a Noisy Circulation Fan Quick Fix for a Noisy Circulation Fan

Q. My client's metal fireplace is supplied by a makeup air system with a built-in circulation fan. This fan - which plugs into an accessible outlet - is triggered by a heat sensor in the fireplace. While effective, it's also very loud. To reduce the noise, I'd like to replace the fan's on/off switch with a variable-speed control. Is that possible? The manufacturer doesn't seem to offer anything. Read more

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Adding a Three-Way Switch Adding a Three-Way Switch

Q: My clients want to add another light and a second switch to one of their existing lighting circuits, a wall sconce controlled by a single-pole switch. Power feeds the light before running to the switch; because of existing conditions, the easiest option would be to replace the single-pole switch with a three-way switch, add another three-way switch at the new location, and connect the two switches with three-conductor cable. Will this work, or will my electrician ask me to open up the walls so he can get access to the entire circuit? Read more

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Limits on Outlets

Q. How many receptacles can I put on a 15-amp and a 20-amp circuit? Read more

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Kitchen & Bath: Venting With Air-Admittance Valves Kitchen & Bath: Venting With Air-Admittance Valves

Venting with air-admittance valves; undercounter appliances; showerheads Read more

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Supplying Power to an Outbuilding Supplying Power to an Outbuilding

Q. What's the right way to deliver power to an outbuilding? I'd like to have a panel capable of powering a small shop. Read more

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