I am choosing a new heat pump for my house. It currently does not have central air/heat.
When looking at the AHRI ratings, the tax-credit-qualifying systems have a higher cfm/ton than traditional guidelines. A two stage, 2 ton system has a variable speed blower that has a minimum setting of 1000 cfm. That means that for most of the year, here in Oregon, it will be operating at 750 cfm/ton. We don’t have to worry about humidity here, but the system is for the whole country. And I do know what humidity can be like in the South as my wife is from Mississippi and I have been there in August!
I am assuming that the larger speed and larger coil uses less energy to transfer heat. So, can I just disregard those traditional figures (350-450 cfm/ton)? The high HSPF is what the Oregon Department of Energy wants me to choose.
When looking at the AHRI ratings, the tax-credit-qualifying systems have a higher cfm/ton than traditional guidelines. A two stage, 2 ton system has a variable speed blower that has a minimum setting of 1000 cfm. That means that for most of the year, here in Oregon, it will be operating at 750 cfm/ton. We don’t have to worry about humidity here, but the system is for the whole country. And I do know what humidity can be like in the South as my wife is from Mississippi and I have been there in August!
I am assuming that the larger speed and larger coil uses less energy to transfer heat. So, can I just disregard those traditional figures (350-450 cfm/ton)? The high HSPF is what the Oregon Department of Energy wants me to choose.
