| Model | NF15 | NF20 | NF30 | |
| Water tank | Circulation type | Direct circulation | ||
| Tank capacity | 150L | 200L | 300L | |
| External dimension(mm) | φ540*1020 | φ540*1320 | φ580*1950 | |
| Outer tank material | Color coating galvanized steel | |||
| lnner tank material | SUS 304 Stainless steel/0.5mm | |||
| Man working pressure | 0.05Mpa | |||
| Electric element | 1.5KW | |||
| Flat Solar Collector | Dimension(L*W*T)(mm) | 2000*1000*80 | 2000*1000*80 | 2000*1000*80 |
| Total area | 2.0m2*1pcs | 2.0m2*1pcs | 2.0m2*2pcs | |
| Absorber material | Al.full plate | |||
| Absorber coating | Select black chrome/Blue coating | |||
| Header pipe | Red copperφ22*0.6 | |||
| Riser pipe | Red copperφ10*0.5 | |||
| Quantity of riser pipe | 7pcs | |||
| Welding | Laser welding | |||
| Cover material | Low iron tempered textured glass | |||
| Frame material | Anodised aluminium alloy | |||
| lnsulation material | Fiber glass | |||
| Piping connector size | φ22 | |||
| MountingBracket | Material | Galvanized steel | ||
| Bracket style | A:Flat foof B:Sloping roof | |||
| Circulation pipe material | 304 Stainless steel corrugared pipe3/4" | |||
| Connection & fittings | Connection fittings | φ22mm*G3/4" | ||
| T/Ppressure relief valve | / | |||
| Controller(selective) | Automatical control of the electric element and monitor the water temperature | |||
| Weight(empty)(kg) | 76 | 110 | 139 | |
| Weight(filled)(kg) | 226 | 310 | 439 | |
