At the end of the webinar, we will have a brief presentation from Consumers Energy

There are helpful resources to determine the best way to size Ground Source Heat Pump systems for residential buildings. The International Ground Source Heat Pump Association (IGSHPA) recommends sizing using the ANSI Manual J.

https://igshpa.org/wp-content/uploads/3-Residential-System-Design-Part-I-Jeff-Hammond.pdf

GWP chart is missing R454B at 466 GWP and will be used by many direct HVAC systems, both residential and commercial

For Ground Source Heat Pumps, cost comparisons are usually reported in total energy cost reductions. Have you seen any reports breaking down how much cooling costs decrease vs if there are higher heating bills from switching to electric?

With air 2 air, ductless, it seems one of the major issues could be absence of fresh air. What are the present, best-in-class solutions?

new construction using GEo, how might commissioning be different than conventional commissioning?

(School new Construction)

Also in the north, with air-to-air, I think it helps to locate outdoor units on the south side of the structure.

Is an air to water heat pump the same device as a heat pump boiler? Do you see the market growing in this direction or since air to air are simpler retrofits do you feel that will still be the bigger market?

khernandez@franklinenergy.com

I would be happy to help if anyone has any energy efficiency rebate questions for switching to heat pumps.

boc@mwalliance.org

Thanks!

Thank you all!