System Components
Collector Loop
Manufacturer: Vaillant GmbH
Type: auroTherm classic VFK 990/1
Number: 2.00
Total Gross Surface Area: 48.201 sq.ft
Total Active Solar Surface Area: 43.529 sq.ft
Tilt Angle: 33 °
Azimuth: -45 °

Manufacturer:
Type:
Volume: 0 gal
Solar Preheating Tank
Manufacturer: T*SOL Database
Type: DHW Tank - 300
Volume: 79.25 gal

Auxiliary Heating
Manufacturer: T*SOL Database
Type: Gas Continuous-Flow Water
Heater - 30
Nominal Output: 102.36 kBtu/hr

Basic Data
512 Via de la Valle, Suite 200
Solana Beach, CA, 92075
Krapeck
Variant1
T*SOL Pro 4.5 4/6/2009
Climate File
Location: Denver US
Climate Data Record: "Denver US"
Total Annual Global Radiation: 5.71 MBtu
Latitude: 39.75 °
Longitude: 105 °
Domestic Hot Water
Average Daily Consumption: 60 gal
Desired Temperature: 121.5 °F
Load Profile: Detached House (evening max)
Cold Water Temperature: February:45.48 °F / August:52.72
°F

Results of Annual Simulation
Installed Collector Power: 10.70 kBtu/hr
Installed Gross Solar Surface Area: 48.201 sq.ft
Collector Surface Area Irradiation: 25.16 MBtu 578.02 kBtu/sq.ft
Energy Produced by Collectors: 14.21 MBtu 326.54 kBtu/sq.ft
Energy Produced by Collector Loop: 12.53 MBtu 287.88 kBtu/sq.ft
DHW Heating Energy Supply: 13.14 MBtu
Solar Contribution to DHW: 12.53 MBtu
Energy from Auxiliary Heating: 5.48 MBtu
Natural Gas (H) Savings: 684.4 cu.yd
Natural Gas (H) Savings: 186.72 therm
CO2 Emissions Avoided: 2,439.40 lbs
DHW Solar Fraction: 69.6 %
Fractional Energy Saving (EN 12976): 70.6 %
System Efficiency: 49.8 %

Contact Mike Speck or Jaakko Tarkka 720.560.1669