Heat Pump Water Heaters: Performance at Varying Ambient Temperature

I recently received two graphs from AO Smith that show the difference in performance for their residential heat pump water heater, the Voltex.  A lot of manufacturers print performance at one condition.  The charts below shows the difference across the entire range. This data reiterates the importance of climate. Images Courtesy of AO Smith




The Definitive Guide to Jaga’s Trench Radiators

Jaga is a Belgium-based company that manufactures innovative, energy efficient radiators and fan coils. Some of Jaga’s most popular products are of an in-floor, trench design. Performance of these units is surprisingly high due to same end water connections that allow for multiple passes through the heat exchanger, built-in fans to assist convection, and corrugated fins. Jaga’s…



Daikin Releases Wireless Control For Rooftop Units, Intelligent Equipment

At the AHR Expo two weeks ago, Daikin showcased a less expensive alternative to traditional BMS. It’s a cloud-based solution called Intelligent Equipment that delivers data and analytics via the web or mobile device.  Customers can remotely monitor and control a number of Daikin’s rooftops including the Rebel, Maverick II, and RoofPak.  Intelligent Equipment displays graphics, live…




Carrier Launches New Controls Expert Program

Carrier launches a new training and certification program that will qualify contractors to install Carrier controls products.  It’s called the Carrier Controls Expert Program, and three tiers of certification have been created based upon product: Controls Expert Comfort System (CS), Controls Expert i-Vu System (IS), and Controls Expert Encompass System (ES). This program aims to assure…




Fujitsu Unveils the World’s Most Efficient Mini Split

On Monday morning at the AHR Expo,  Fujitsu’s Senior Vice President, Roy Kuczera, unveiled two new models to the Halycon line up – the RLS3 and RLS3H.  Available in 9,000, 12,000, and 15,000 BTU/hr indoor units, the RLS3 is the world’s most efficient mini split at 33 SEER.   That’s 2.35 times more than the Energy Star…




AO Smith Optimizes Tankless Product Line, Discontinues ATIO-710

AO Smith, America’s largest water heater manufacturer, has stopped production of the ATIO-710.  Jeff Ogan, Product Manager of AO Smith’s On Demand Products, wrote in a note to representatives that “the performance of the ATI0-540 condensing heaters is a perfect, high-efficient replacement for the 710 series”.  He goes on to add that the flow rate…




Bosch Acquires Climatec, An Independent Provider of Building Technology

Last week, Bosch announced that it has acquired Climatec, a full-service provider of energy efficiency, security, fire safety, and building automation solutions for an undisclosed amount.  Climatec is headquartered in Phoenix, Arizona and has a presence in California, Nevada, and Texas with 670 employees.   Private equity firm, Pegasus Capital Advisors, purchased majority ownership of Climatec…