TradesHVAC
HVAC tools
Comfort comes from right-sizing, not oversizing. These tools help you sanity-check equipment and airflow before you commit, and they are honest about when a full Manual J is the real answer.
HVAC HVAC Load Sanity Check Sanity-check a quoted air conditioner or furnace size before you commit, and know when you need a real Manual J. HVAC Duct Sizing Size a round duct for an airflow and see the velocity, with a quieter size up. HVAC Equipment vs Load Match Check whether an AC or heat pump size fits your load under the ACCA Manual S limits, or is oversized. HVAC Static Pressure Budget See how much static pressure your blower has left for the ducts after the filter, coil, and grilles.