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I’m building a new home or doing a major renovation Any new or major rehab project is a good prospect for an air source heat pump. If it’s a smaller house or apartment, and built to current energy efficiency standards, often just one or two ductless units can do the job well. Or you could use a compact-ducted system for the bedrooms, plus a ductless unit for the main living space. Bigger is not better: in any sized home, a properly-sized heat pump will save you money on the installation, and that savings can help pay for energy upgrades to the building. “Over-sized” systems (systems that are much bigger than needed) cost more to install and cost more to operate, and that’s why it’s important to start small. Start small If your existing system isn’t near the end of its life, think about installing one or two single zone ductless units where they can do the most for you – in the family room, in the living/dining/kitchen area of an open plan house, or in the master bedroom. Once you get some experience using them, see how well they work, and how well they can heat and cool the whole house when the weather isn’t extreme. Then you can plan on getting some help with weatherization (below), and when you’re ready (or when your main heating system needs replacement) you can finish the job. At that point, if you can avoid replacing the existing heating system, the added cost to add more heat pumps to heat and cool your whole house may be minimal.8 Weatherize Improving your home’s efficiency by insulating, air sealing, and other weatherization steps will help your heat pumps work more effectively. Take advantage of home energy assessments and any programs that may be available to help you weatherize. Whether you do it first, or as a step in the “start small” approach, weatherizing will save you money on heating and cooling, improve your comfort, and (as with heat pumps) may be financed through incentives or rebates to help pay for it. See the weatherization/home performance section in this guide.9 Other resources on weatherization or home performance may be available on your electric or gas utility website, or from your state energy office 8 Photos p. 9 right, p. 10 bottom-right by John Curtis ©2002 Reprinted with permission from Insulate and Weatherize by Bruce Harley, published by the Taunton Press. 9Energy STAR, DIY Guide to Sealing and Insulating: www.energystar.gov/sites/default/files/asset/document/DIY_Guide_2016.pdf 10PDF Image | Air Source Heat Pump Buying Guide
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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