Radiant Energy Systems

The Wasserman Eye Research Center is a culmination of a 50-year vision to house a world-class research and care center on the UCLA campus to preserve and restore eyesight. With offices in New York and Los Angeles, renowned architectural firm Richard Meier & Partners Architects designed the six-story, 100,000-square-foot Edie and Lew Wasserman building. Completed Read More

The Wasserman Eye Research Center is a culmination of a 50-year vision to house a world-class research and care center on the UCLA campus to preserve and restore eyesight. With offices in New York and Los Angeles, renowned architectural firm Richard Meier & Partners Architects designed the six-story, 100,000-square-foot Edie and Lew Wasserman building. Completed in April 2013, the three lower floors are dedicated to the expansion of the Jules Stein Eye Institute, making it a world-class research and treatment facility.

To accommodate for the Wasserman building, a plan was developed to demolish a seismically deficient portion of the adjacent Semel Institute building. Lead architect Michael Palladino was the principle-in-charge and Tom Goffigon, the project manager, worked closely with the Wasserman Foundation, overseeing the demolition project and design and construction of the new building. With a keen eye to detail, the architects kept sustainability top-of-mind. In fact, the University of California system recently became the first American university to have 100 LEED®-certified facilities – an impressive milestone and a testament to the university system’s dedication to responsible building practices.

Radiant System Takes Load off Forced Air

The first three floors were specified to include radiant heating and cooling, and Uponor was asked to help with design and product guidance. Working closely with Circulating Air, a Los Angeles-based mechanical contractor, Uponor helped design the system in conjunction with engineers and architects.

“The contractor had not worked with Uponor prior to this project so we helped them get trained and comfortable with our system on site,” said Jacob Ford of Keyline Sales, a local Uponor rep firm. “It didn’t take long for them to catch on, and they quickly advanced and found innovative methods to speed up installation.”

 

 

According to Ford, the building’s southern facing is a wall of glass, and the radiant heating and cooling system takes a huge load off the forced air system.

The four-man Circulating Air crew worked closely with Keyline Sales to ensure they installed the 16,000 feet of Uponor’s Wirsbo hePEX™ tubing efficiently.

“We were truly amazed at how quickly and easily we installed the piping for the radiant heating and cooling system,” Matt Fitzgerald, Circulating Air job foreman, said. “Receiving training on site really helped us, and our crew felt up-to-speed very quickly.” Also, Fitzgerald said that prior to training he was unaware how easy it was to make the connections to the manifolds and fittings. “I love how fast and easy the system is,” he said.

Uponor’s Wirsbo hePEX tubing uses ProPEX® expansion fittings which require one simple expander tool to make fast, easy connections that hold tight with up to 1,000 pounds of radial force. For contractors familiar with traditional copper or other rigid pipe connections, the ProPEX fitting system is a much easier, more reliable connection method.

The system hooked up to six manifolds and six cabinets divided between the three lower floors. “The installation was fairly straight forward,” Fitzgerald said. “And we didn’t encounter any obstacles that we couldn’t overcome.”

Another product innovation on display at this year’s AHR Expo in Las Vegas was Uponor’s Ecoflex pre-insulated PEX piping system. Here is a closer look at this insulated piping solution. https://www.youtube.com/watch?v=JEB-J1Kg3Es Read More

Another product innovation on display at this year’s AHR Expo in Las Vegas was Uponor’s Ecoflex pre-insulated PEX piping system. Here is a closer look at this insulated piping solution.

SunTouch launched the HeatMatrix uncoupling membrane that offers a flexible, easy-to-install solution for WarmWire underfloor electric radiant heating. Heating wire in HeatMatrix may be installed horizontally or vertically, providing professional installers and DIYers a convenient way to accommodate a variety of underfloor spaces. And because HeatMatrix has less rollback memory, it lays down flatter and Read More

SunTouch launched the HeatMatrix uncoupling membrane that offers a flexible, easy-to-install solution for WarmWire underfloor electric radiant heating. Heating wire in HeatMatrix may be installed horizontally or vertically, providing professional installers and DIYers a convenient way to accommodate a variety of underfloor spaces. And because HeatMatrix has less rollback memory, it lays down flatter and faster, further easing installation.

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HeatMatrix offers installers the versatility to vary wire spacing, allowing customers a choice of different heat outputs, based on floor and room heating needs.

The new membrane can be installed using modified thinset on top and bottom of the mat. The heating wire sits below the surface of the mat, providing greater protection from damage. In addition, SunTouch offers a thicker, constant diameter wire that offers increased durability and is made specifically for securement in the HeatMatrix membrane.

For more information, visit SunTouch.com.

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When Jason Ridgeway of Ridgeway Home Services, West Chicago, Ill., says he takes pride in his work because “we like what we do,” it’s pretty evident in his installations. Recently, at a new construction custom house in the trendy Wrigleyville neighborhood, the homeowner asked for a hydronic snowmelt system and hydronic floor heating.   Ridgeway Read More

When Jason Ridgeway of Ridgeway Home Services, West Chicago, Ill., says he takes pride in his work because “we like what we do,” it’s pretty evident in his installations. Recently, at a new construction custom house in the trendy Wrigleyville neighborhood, the homeowner asked for a hydronic snowmelt system and hydronic floor heating.

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The nearly complete radiant and snowmelt installation in Wrigleyville.

 

Ridgeway installed REHAU under floor metal plates with 1/2″ REHAU o2 barrier pipe. This allowed for the added floor radiant and even heat distribution with out adding to the floor height. The 2-man crew also added a 80-gallon indirect hot water heater and even snowmelt to the project in the front and back porch areas as well as walkways. Ridgeway custom built a hydronic panel to tie this all in.

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Since this was a new construction site, the electrician had not been there to install power. “We had to get this up and running in order to heat floors so the flooring contractor could put down his floor which he would not do without floor heat running even though the furnaces have the place heated to 75 degrees. The electrical wires in the pictures are just temped in to a outlet until Sparky finishes,” says Ridgeway.

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Ridgeway has a purge set up on the panel so they can purge all radiant floors from one location. “This entire system is filled with glycol so we want to switch hoses as little as possible,” says Ridgeway.

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A Ridgeway radiant selfie: Ridgeway, right, and his tech, Mario, take time to show off their work.

Some of the challenges were that the mechanical room was very small to begin with and now they are adding a boiler as well as piping and an indirect tank. “Things where very cramped,” says Ridgeway.

Quick Notes:

• According to Ridgeway, we have a boiler pump for the boiler on closely spaced tees. There’s a snowmelt pump not installed yet that will be over the door and a indirect pump for the indirect heater not installed yet. Then we have the one pump you can see which will actually be replaced with a Grundfos Magna series pump due to the multiple zones. We typically use the low loss headers but did not on this job.

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• Balancing is done at the REHAU PROBALANCE manifold for the floor radiant. Temperatures are balanced with motorized mixing valves and HTP VISON 2 control Zones by Caleffi zone control.

• ProPress is great. I solder and braze with the best of them. I have done everything from 4″ massive boilers and chillers pipe work to 1/2 plumbing and no issues and no leaks. With a 20-year track record and 10s of thousands of fittings.

• All this and we’re allowed only 4 feet of wall in which to install. Not shown yet is the domestic hot water that’s going to be installed in front of the manifolds between boiler and panel.

• Zip ties are temporary until the clevis hangers show up; they did a great job holding pipe straight while they put it in.

IMG_8746• Snowmelt — we install tubing in the driveway, walkway and stairs and pump hot water through it from a boiler. The concrete then gets to a set-point temp above 32 degrees and melts the snow and ice on the drive turning it into water then vapor. This way no salting, plowing or shoveling is needed.

Energy Savings:
Two furnaces and ac systems are both 2 stage 17 seer
Boiler — Lochinvar knight 211,000 (97% efficient)

Water heater —Lochinvar indirect

Location: Chicago Ill. — Wrigleyville
Date started: Jan 18 2015
Date Finished: Projected date to finish July 20th
Size of Project: 6,000-sq ft-home
Workers onsite: 2
Budget: $68,000.00

The city of Amboy, Ill. needed an in-floor radiant heating and domestic hot water (DHW) system, and Grasser’s Plumbing and Heating was more than happy to oblige. Grassers has been making customers happy for over a half of a century. In fact, and they have become one of the most successful and trusted plumbing and Read More

The city of Amboy, Ill. needed an in-floor radiant heating and domestic hot water (DHW) system, and Grasser’s Plumbing and Heating was more than happy to oblige. Grassers has been making customers happy for over a half of a century. In fact, and they have become one of the most successful and trusted plumbing and heating companies in the LaSalle, Peru, Princeton and Ottawa, Illinois area for more than 60 years.

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According to tech Tim Kuhlman—who works mostly high-end new construction and commercial jobs—the city of Amboy needed radiant heat for one of its 4,000-sq.-ft. “sheds,” which is used for the maintenance of city vehicles and storage, and domestic hot water for a service sink.

The hot water solution was a primary/secondary piping application and provided by an NTI Ti200AC Trinity combi boiler, which features a state-of-the-art sealed modulation combustion system with hot surface ignition and patented 316L stainless condensing heat exchanger provides higher efficiencies. The combi boiler supplies heat to stainless steel Viega radiant manifolds—with shutoff and balancing/flow meters—which feeds Viega’s PEX tubing in the floor, and it also supplies domestic hot water for the service sink.

 

 Inside the Job

Boiler — NTI Ti200AC Trinity combi boiler

Pumps — B&G pl 36 primary; Taco 2400-24 secondary

PEX — Viega & REHAU

Valves — NIBCO

Expansion Tanks — Extrol

Balancing/Flow Meters — Viega

Air Eliminator — Honeywell Supervene