Posts tagged ‘Heating’

June 6, 2016, 9:00 am

Project Profile: Dodge City Schools

Exterior (3)_web

“I can hear my teacher now.” That was one student’s reaction in Dodge City, Kansas, after the school district began renovating each of its 10 schools’ HVAC systems. When it paired our Water-source Variable Refrigerant Flow (VRF) with geothermal technology in two of its buildings, that same wonderful thing happened – suddenly, students could hear their teachers. Additionally, the district saw reduced utility bills, green certification and satisfied teachers.

Each summer now, the district focuses efforts on one renovation. Our water-source VRF technology entered the scene during the second summer as part of improving conditions in the 35,000-square-foot Central Elementary School (Central) – a two-story brick facility built in 1927. Water-source VRF paired with geothermal technology replaced outdated, inefficient HVAC systems. VRF brought efficiency, true zoning and excellent control to that pairing.

The following summer, Wilroads Elementary School (Wilroads) – a 19,000-square-foot building from the 1950s – was renovated by pairing our water-source VRF systems with geothermal technology. Drew Rose, electrical engineer, Integrated Consulting Engineers, Inc., Wichita, Kansas, has served as the project manager and designer for the ongoing Dodge City Schools projects. Rose said of the Wilroads installation that “everyone’s been satisfied since, and the teachers were really excited to get something that works without being loud.”

Both Central and Wilroads also earned ENERGY STAR® certification; Central even got a score of 91! “When you think about how it was built in 1927, well, we think that’s pretty impressive,” said William Hammond, the district’s executive director of business operations.

The Dodge City Unified School District’s energy manager, Morris Reeves, spoke of the decision to use VRF: “We work every day to conserve energy. Energy conserved is more money for the classroom – that’s what we’re all about.” Hammond added: “I like being green to save energy and resources, and being green to save money. I try to find projects that do both.” By pairing our water-source VRF systems with geothermal technology, the school district was able to do both. This pairing even earned the district a claim of $215,000 in grants and rebates. And now, nearly 7,000 students can hear their teachers.

To read more about Dodge City Schools, check out the case study.

May 17, 2016, 9:00 am

Now Available – The Advanced Heating Technology White Paper

Advanced Heating Technology White Paper

Winter is over, but it will be back, and our latest White Paper discusses Advanced Heating Technology, which explains why Variable Refrigerant Flow (VRF) systems are a smart solution in even the coldest of climates. This new tool reinforces our brand’s leadership and expertise, and will help you provide customers with the best cold weather solutions.

Highlights from this most recent White Paper include information regarding how advanced heating technology works, defrost cycles, cold weather accessories, features, benefits and case studies. VRF systems are an efficient heat source even as low as minus 13 degrees Fahrenheit (ambient). This White Paper explains to readers how this is possible and addresses any misconceptions about the technology.

Click here to read the entire Advanced Heating Technology White Paper.

Written by MitsubishiHVAC
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July 31, 2014, 3:15 pm

Seven Key Findings from NEEP Field Study on Ductless Heat Pumps

Source: National Climatic Data Center

Northeast Energy Efficiency Partnership (NEEP) has released the results of its field study on ductless heat pumps in cold-climate areas. The goal was to determine the potential energy savings and efficiency with ductless heat pumps and gauge homeowners’ usage patterns and satisfaction with the new technology.

The study focused on nine New Hampshire homes that used either conventional heating systems (electric resistance, oil or propane) or standard air-source heat pumps for primary heating. All of the homes were retrofitted with ductless heat pumps in January 2013. Eight homes had our Hyper-Heating INVERTER™ (H2i®) MSZ-FE models installed. NEEP researchers monitored the energy demands and usages from February to September 2013 with our Northeast Business Unit on hand for technical support.

NEEP concluded that the systems performed very well year-round and exceeded the homeowners’ expectations in most cases. Here are seven key findings from the study:

  • Ductless systems resulted in average energy savings of $832 per heating season when compared to the electric resistance baseline for primary heating.

  • Ductless systems saved an average of $613 per heating season when compared to the oil heat baseline, which was the baseline used for the majority of the participant sites.

  • Ductless systems resulted in average energy savings of $398 per heating season when compared to the standard air-source heat pump baseline.

  • Our H2i MSZ-FE systems performed at 100 percent rated capacity at 5 degrees Fahrenheit and even produced heat down to minus 18 degrees Fahrenheit.

  • A majority of the homeowners who initially considered the ductless heat pumps as supplemental systems now rely on them as the primary heating sources.

  • The ductless heat pumps also provided energy savings during the cooling season. Owners of the eight homes with our systems ended up foregoing plans to install central air-conditioning or removing existing window air-conditioning units to use the ductless systems for cooling instead.

  • Our H2i MSZ-FE systems exceeded homeowners’ expectations of the technology. Homeowners in all eight homes were highly satisfied with the energy savings and comfort level they experienced.

NEEP said earlier this year that an annual energy savings of approximately $1.2 billion could be reached and over 7 million metric tons of carbon emissions avoided each year if homeowners currently using electric resistance for heating adopted ductless heat pumps. We hope our participation in this study raises awareness of this technology so that together we can accelerate energy efficiency in homes and build a healthier, more sustainable future.

For more information on this study, click here for NEEP’s full report.

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