Resources for
Use these resources to help you sell and promote ductless heating and cooling system to your customers.
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HVAC Sizing Tool
The HVAC Sizing Tool allows HVAC contractors to calculate room-by-room or zone-level heating and cooling loads for existing and new small buildings. This unique online tool does the job of much more expensive industry software programs in far less time. HVAC Sizing Tool users can go from accurately sizing load and demand to printing out design specifications in about 30 minutes.
The HVAC Sizing Tool is based on ACCA Manual J and D, with common assumptions used to speed data entry. It was tested at a national level and demonstrated consistent results with other ACCA-approved software and ACCA Manual J and Manual D calculations. The Northwest Energy Efficiency Alliance (NEEA) developed the tool in collaboration with CLEAResult Inc. to support energy efficiency programs of northwest utilities. In 2020, it was made available for anyone to use without charge, though the utility incentive programs connections are only available in Oregon, Washington, Idaho and Montana.
What you get with the HVAC Sizing Tool
- The fastest, easiest, most cost-effective HVAC sizing and design solution on the market
- A simplified sizing and duct sizing that keeps all your project information in the cloud
- Company level management of multiple designers
- The web browser interface that works with most browsers, providing "cookies enabled"
- Quick data entry that takes approximately a quarter of the time required by other tools
- Detailed, printable specification reports for every installation
- Accurate heat transfer and load sizing for residential buildings (small commercial buildings will work too)
How to use it
1. Register your HVAC Sizing Tool license on https://betterbuiltnw.com/resources/hvac-sizing-tool for complete access to the tool
2. Watch the YouTube webinar series on on how to use the HVAC Sizing Tool
3. Enter your project site information and build you own libraries of HVAC equipment (optional)
4. The tool is free to use, but only supported by context sensitive help and webinars found under the help menu -
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Utility Participation List
List of participating utilities by state and their rebate amounts.