STEP 1
ENTER GENERAL INFORMATION
STEP 2
SELECT THE GLASS AND DUCT CHARACTERISTICS
Choose generic window HTM's or automatically generate an HTM using manufacturer's specs
Determine duct loss/gain using 18 various scenarios
STEP 3
ENTER BUILDING COMPONENT INFORMATION
Click the dropdown arrows to select the insulation values of the various building components and U-Values are automatically entered
THE CALCULATION FOR SIZING EQUIPMENT (block load) HAS BEEN COMPLETED!
Our illustration indicates 27,617 btuh's are needed for heating and 24,217 btuh's (2 tons) are needed for cooling
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THE ADDITIONAL TABS BELOW ALLOW YOU TO :
BOILER NOTE: use the room BTUH load to size the convectors
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COST ANALYSIS TAB
Use this tab as a sales tool
Below is an example of comparing a 13 SEER A/C unit with an 92% AFUE propane furnace vs a new 15 SEER / 8.5 HSPF heat pump (use the built in map to obtain degree day information for your area). Our sample cost analysis indicates the 15 SEER heat pump will save $978 per year, the system will cost $7600, and delivers a 1.2 year payback or 81.6% return on the investment if the buyer opts for the heat pump.
ROOM-BY ROOM TAB
Calculates the load and CFM of individual room loads.
Automatically checks accuracy by comparing room-by-room results with whole house calculation
AIR DUCT SIZING TAB
This tab will calculate the friction rate, size the supply and return trunks and size the individual outlet runs all according to Manual D (Sizes both metal and flexible duct)
Includes square to round calculator
Equipment Selection as per Manual S
This tab sizes the equipment and selects the blower cfm for best temperature and humidity control, adjusts the capacities for altitude, determines the available static pressure for the duct system and determines the amount of auxiliary heat needed if a heat pump is used.
