Product From The Sterling Sales Meeting Presentation On March 23, 2011

Out Sourcing / Private Label

Private Label Opportunity Electric Unit Heaters 2-20 ton Commercial Rooftop (Goodman) 2-10 ton Commercial Split Systems (Goodman) – 3 ph/460/230v PTAC Units (Goodman) ??

Internally Build Product Current Product Enhancements

Hydronic Unit Heaters See suggestions in the discussion section

Tubular Unit Heaters Tubular Centrifugal Fan Unit Heater Tubular Duct furnace Tubular Separated Fan Unit Heater Tubular Separated Centrifugal Fan Unit Heater High efficiency Unit heater A High efficiency Unit heater B Modify current tubular fan unit to blower. Match QVEB. Must add modulation gas controls Modulation gas controls for blower, fan and duct furnace Modify current tubular unit by removing the fan. Must meet a minimum of degree rise (90 if possible)Duct flanges to be added on inlet and outlet. Modify current tubular fan unit to make it separated combustion. Modification of burner box is required. New power venter and pressure switch required. Modify current tubular blower unit to make it separated combustion. Modification of burner box is required. New power venter and pressure switch required. Modify current tubular to high efficiency Design new unit with complete new heat exchanger

Engineered Product Hydronic Packaged Rooftop UnitHeating only, 800MBH input, High efficiency 90%+, Hydronic coil, Heat Net controls, xxxxx CFM, xxxx TSP, Packaged Make-Up Air UnitAir conditioning and heating, energy recovery section, high filtration section, 100% outside air, turndown 25% or below, Change Mtr system on standard CFM Units, BAS Interface package - Bacnet, Lon, N2, Modbus, 2" filter frame option (Merv 13) (New ASHRAE/ANSI fan standards coming) Air handler Unit AdditionsAdd heating coil for split system with Hydronic heating Add Condenser Section Optional field installed with AHU Current unit modifications /additions 1. Blower spring isolation 2. Main control board with better logic 3. Evap Cooling Section, Cabinet Designed up to 12,000 CFM, bag filter or 12" final filter, 2" prefilter option 4. Add Condenser Secction to Rail - up to 30 Tons (out source Cond Unit) 5. ME & MS units are short on CFM. Ned to adsd top discharge and top return

Internally Build Product New Product Development

New Product Development Magic Pak Unit New Upflow Gas furnace ( k btu) – w/cooling coil

Kitchen Systems Make-Up Air Units Self Contained 100% OSA CFM w/ Fixed- plate enthalpic energy exchanger New Product Development

Misc Project Find VFD Drive that can handle factory mounted under all conditions CanFab unit Flue collars on GG MS and ME third party label for complete unit

Product Meeting Discussions Topics

Product Meeting Discussion Outsource Electric Unit Heaters Goodman Cond Units for Space Pak Energy Recovery Modules – Calcana & AirXchnage Hydronic Unit Heaters – Become at least a me too – Specifier – Unit Mounted Controls – Upgrade Mtrs and junction box – Reznor, Modine & Rettling all becoming a threat

Product Meeting Discussion Topics Hydronic Unit Heaters – Production Issues Sharp corners and lose fit of meteal Issue w/ Fan Blades coming off Issue w/ Vibration – Upgrade housing for Plastic (polish model) – All engineering done to date has been to take cost out

Product Meeting Discussion Topics Tubular unit Heater – Need tubular QVEB, Duct Furnace – Tubular QVEB nearly done Moving to separated combustion model next – Condensing unit heater bimetal control switch to avoid freezing – Solenoid valve for power outages to dump condensate

6 Month Project Goals

1. Tubular unit heater with blower (+modulation) - Lab 2. TF & TC unit heater with separated combustion - Lab 3.1 Tubular Duct Furnace – Lab 3.2 High efficiency unit heater - Eng Design 4. High efficiency unit heater – Lab