OEM VRcooler Gas Boiler Heat Recovery Units
Heat recovery unit
1. Steel tube with extruded aluminum fin
Tube Size |
Fin (OD) |
Fin Height |
Fin Thickness |
Fins Distance |
Φ18x2 mm |
Φ38 mm |
10 mm |
0.45 mm |
3 mm |
Φ21x2 mm |
Φ45 mm |
12 mm |
0.35 mm |
3 mm |
Φ21x2 mm |
Φ51 mm |
15 mm |
0.35 mm |
3 mm |
Φ25x2 mm |
Φ50 mm |
12.5 mm |
0.3 mm |
3 mm |
Φ25x2 mm |
Φ55 mm |
15 mm |
0.3 mm |
3 mm |
Φ32x3 mm |
Φ62 mm |
15 mm |
0.3 mm |
3 mm |
Other finned tube size can be customized. | ||||
2. Steel tube with crimped steel fin (All S/S 201, S/S 304, S/S 316 are optional)
Tube Size |
Fin (OD) |
Fin Height |
Fin Thickness |
Fins Distance |
Φ18x2 mm |
Φ38 mm |
10 mm |
0.3 mm |
4-5 mm |
Φ21x2 mm |
Φ45 mm |
12 mm |
0.3 mm |
5-8 mm |
Φ21x2 mm |
Φ51 mm |
15 mm |
0.3 mm |
5-8 mm |
Φ25x2 mm |
Φ50 mm |
12.5 mm |
0.3 mm |
5-8 mm |
Φ25x2 mm |
Φ55 mm |
15 mm |
0.3 mm |
5-8 mm |
Φ32x3 mm |
Φ62 mm |
15 mm |
0.3 mm |
8-10 mm |
Other finned tube size can be customized. | ||||

We have heat exchanger design software which Guentner and Cabero are using, Vrcooler offers
tailor-made heating and cooling unit.









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