Quick Disconnect. Recent code changes require the use of disconnect plugs in nonresidential fluorescent installations, partly because so many workers have been electrocuted servicing fluorescent ballasts. Ideal’s newest disconnect, the PowerPlug 103, fits the three-conductor dimming and switching systems common in commercial applications — but you can also add this safety feature to residential fluorescent fixtures with the company’s line of new-installation and retrofit disconnects. Prices range from 40 cents to $1.50 each. Ideal, 800/435-0705, idealindustries.com.

Efficient Heaters. Sometimes it’s not possible to reach additions or outbuildings with ducts or pipes from a house’s hvac system. Other times the system just can’t handle the added heating or cooling loads. In either case, a ductless split system may be the way to go. Friedrich has two new super-efficient wall-mounted units with SEER ratings of...

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