Information Center > Wine Accessories Buying Guides > Cooling Unit Buying Guides > 

Buying Guide: Thermal Loads for Below-Grade Wine Cellars


CellarPro Cooling Systems
Below-Grade Thermal Loads @ 55°F

1800XT - More info

BTUH: 1456

1800XTS - More info

BTUH: 1886

3200VS - More info

BTUH: 3040

4200VS - More info

BTUH: 3938

 
Scenario 1
2 Concrete Walls (1) /
2 Interior Insulated Walls (2)
Scenario 2
3 Concrete Walls (1) /
1 Interior Insulated Wall (2)
Cellar Size
Air
Temperature
Ground Temperature
Thermal Load (BTUH)
 
75°F
60°F
973
958
100 Cu Ft
77°F
65°F
1087
1106
 
80°F
70°F
1208
1260
 
80°F
75°F
1307
1399
 
 
75°F
60°F
1204
1181
200 Cu Ft
77°F
65°F
1380
1408
 
80°F
70°F
1570
1643
 
80°F
75°F
1721
1852
 
 
75°F
60°F
1440
1411
300 Cu Ft
77°F
65°F
1675
1711
 
80°F
70°F
1927
2022
 
80°F
75°F
2128
2298
 
 
75°F
60°F
1601
1570
400 Cu Ft
77°F
65°F
1873
1912
 
80°F
70°F
2167
2269
 
80°F
75°F
2399
2581
 
 
75°F
60°F
1830
1794
500 Cu Ft
77°F
65°F
2156
2201
 
80°F
70°F
2508
2626
 
80°F
75°F
2784
2994
 
 
75°F
60°F
2816
2761
1000 Cu Ft
77°F
65°F
3340
3408
 
80°F
70°F
3905
X (4087)
 
80°F
75°F
X (4344)
X (4670)

Legend
The table is shaded to show which CellarPro refrigeration system will be required to maintain 55°F inside the wine cellar, using the following assumptions:

  • We provide data for two scenarios:
    • Scenario 1. The cellar has two 6-inch concrete walls against grade + two insulated (R12) walls against temperature-controlled interior space
    • Scenario 2. The cellar has three 6-inch concrete walls against grade + one insulated (R12) wall against temperature-controlled interior space
  • The GROUND temperature corresponds to the average earth temperature opposite the concrete walls.in the cellar. Please refer to our chart that depicts ground temperatures in varoius parts of the country, which can vary by 20-30°F depending on geography
  • The AIR temperature correspond to the conditions in the temperature-controlled environment that is opposite the insulated wall(s) in the cellar
  • The shading indicates the recommended cooling unit based on the calculated thermal load (refer to the shading at the top of the table)
  • "X" indicates conditions that are beyond the capacity of our 4200 Series cooling units; therefore, our 6000S or 8000S split refrigeration system would be required.

Please note:   The thermal loads above are calculated based on the R-Values discussed above. Lower R-Values in the cellar (eg from glass windows, doors or walls), uninsulated walls that are not fully below grade, and/or exposure to warmer air temperatures will increase the thermal load on the wine cellar . To be certain that the thermal load won't exceed the capacity of the cooling unit, email your wine cellar specifications to us and we'll be glad to assist you.