The Aire King line of vertical air conditioners has expanded with units in 4-, 5.5-, 7.5-, 10-, and 16-ton capacities. Available in self-contained and split configurations, the units come standard

The DustVOC™ analyzes the volatile organic compounds (VOCs) present in settled building dust. Dust samples are collected and examined using gas chromatographic/mass spectrometry to identify the offending VOCs, says the

Two new families of solid-state power relays, the Series L and the Series E3PT, are available. According to the company, Series L delivers outputs to 25 A, 280 VAC, and

Model HT125 is a high-temperature stainless steel datalogger with a 5-inch probe. The data-logger allows users to download data to a PC, using DicksonWare™, for viewing, graphing, and/or printing, the

HM Series duct heating sections are available in aluminized, 431 stainless, 409 stainless, and 304 stainless steel. Available in capabilities from 75,000 to 400,000 Btuh, the prepackaged sections feature a

The Series 677 differential pressure transmitter is designed to measure pressures as low as 0.1-inch WC with ±0.4% accuracy. It is available in a variety of ranges from 0- to

The 21D64-1 nitride igniter upgrade kit for gas boilers and furnaces is designed for easy aftermarket replacement of silicon carbide igniters, states the company. The kit includes a nitride igniter,

GeneralAire AC-1 and AC-4 air cleaners are rated by independent laboratory tests at MERV 10 under ASHRAE Standard 52.2-1999. The company says the AC-1 is easily installed in most forced-warm-air

A new, 44-page brochure describes the benefits and features of the company’s Class I centrifugal fans (RPV). The literature also provides complete information on the manufacturer’s 11 available sizes (10

The Model HE440A whole-house Clean Steam humidifier uses two-stage water filtration. The first stage removes chlorine and large particulates. The second stage has a reverse-osmosis filter to remove submicron particulates