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| ALTEK SC-LH3-20 | ALTEK SD-T2L-10 | ALTEK AC-VGL-25 | ALTEK AC-VGL-50 | ALTEK SC-LH3-30 | ALTEK SP-H-30 | ALTEK SD-T2-24 | Roda RSSCV20C | ALTEK SP-CL-30 | ALTEK SC-LH2-10 | ALTEK SC-HD-30 Drainback | WOLF CFK-1 | WOLF Topline TopSon F3-1 | Atmosfera RNB 58-1800/30-250 | Atmosfera RPA 58-1800/20-170 | Atmosfera RPA 58-1800/24-200 | ALTEK SP-H-15 | Vaillant auroTHERM VFK 145V | ALTEK SC-LH2-30 | ALTEK SP-CL-24 | ALTEK SD-T2L-30 | Eldom VHP 12 | Paradigma Aqua Paket 3xAqua Plasma 15/40 | ALTEK SC-LH1-30 | Solar-Tec PHP-58/1800/20 | Star Energy SVK-20/14 Ekonom | Axioma AX-10HP24 | Axioma AX-20T | Sun Rain TZL58/1800-20 | ALTEK Premium TZ58/1800-30R1A | ALTEK Ligero 300 | Vaillant auroSTEP/4 plus 2.250 VTe | Atmosfera SPK F4M | ALTEK SD-T2L-15 | ALTEK SD-T2L-20 | Paradigma Star 19/49 | Paradigma Aqua Plasma 15/40 | Viessmann Vitosol 300-TM 1.26m2 | Viessmann Vitosol 100-FM SV1F | Axioma AX-20 | Axioma AX-30 | Axioma AX-20HP24 | Axioma AX-30HP24 | Axioma AX-30T | Vaillant auroTHERM VFK 145H | Atmosfera RNB 58-1800/15-130 | Atmosfera RNB 58-1800/20-170 | Atmosfera RPA 58-1800/30-250 | ALTEK SP-C-15 | ALTEK SP-C-20 | |
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| TOP sellers | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Type | vacuum | thermosiphon | vacuum | vacuum | vacuum | thermosiphon | thermosiphon | flat | thermosiphon | vacuum | vacuum | flat | flat | thermosiphon | thermosiphon | thermosiphon | thermosiphon | flat | vacuum | thermosiphon | thermosiphon | vacuum | vacuum | vacuum | thermosiphon | vacuum | vacuum | thermosiphon | thermosiphon | vacuum | flat | flat | flat | thermosiphon | thermosiphon | vacuum | vacuum | vacuum | flat | thermosiphon | thermosiphon | vacuum | vacuum | thermosiphon | flat | thermosiphon | thermosiphon | thermosiphon | thermosiphon | thermosiphon |
| Loop system | closed | open | open | open | closed | closed | open | closed | closed | closed | closed | closed | closed | open | closed | closed | closed | closed | closed | closed | open | closed | closed | closed | closed | closed | closed | open | open | closed | open | closed | closed | open | open | closed | closed | closed | closed | open | open | closed | closed | open | closed | open | open | closed | closed | closed |
| Mounting | universal | inclined | inclined | inclined | universal | inclined | inclined | horizontal | inclined | universal | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | universal | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | inclined | universal | universal | inclined | inclined | inclined | inclined | inclined | horizontal | inclined | inclined | inclined | inclined | inclined |
| Suitable for | heating and DHW | DHW | pool heating | pool heating | heating and DHW | DHW | DHW | DHW | DHW | heating and DHW | DHW | heating and DHW | heating and DHW | DHW | DHW | DHW | DHW | DHW | heating and DHW | DHW | DHW | DHW | heating and DHW | heating and DHW | DHW | DHW | heating and DHW | DHW | DHW | DHW | DHW | DHW | heating and DHW | DHW | DHW | heating and DHW | heating and DHW | heating and DHW | heating and DHW | DHW | DHW | heating and DHW | heating and DHW | DHW | DHW | DHW | DHW | DHW | DHW | DHW |
| Year-round use |  |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Design | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Absorber material | copper | copper | copper | copper | copper | aluminium-copper | copper | copper | copper | aluminium | copper | copper | copper | copper | ||||||||||||||||||||||||||||||||||||
| Absorber area | 1.61 m² | 2.42 m² | 3.13 m² | 2.51 m² | 1.89 m² | 0.94 m² | 2.42 m² | 3.13 m² | 2.09 m² | 2.56 m² | 1.57 m² | 2.42 m² | 3.45 m² | 2.42 m² | 1.76 m² | 2.79 m² | 1.87 m² | 3.45 m² | 1.26 m² | 2.31 m² | 1.56 m² | 2.09 m² | 3.13 m² | 1.57 m² | 2.09 m² | |||||||||||||||||||||||||
| Aperture area | 1.88 m² | 0.94 m² | 2.35 m² | 4.7 m² | 2.82 m² | 1.92 m² | 2.82 m² | 0.81 m² | 1.88 m² | 2.1 m² | 2 m² | 2.35 m² | 2.82 m² | 2.26 m² | 2.82 m² | 1.89 m² | 3.49 m² | 2.82 m² | 1.86 m² | 2.5 m² | 0.94 m² | 1.86 m² | 2.34 m² | 2.41 m² | 2.35 m² | 1.41 m² | 1.88 m² | 4.5 m² | 3.49 m² | 1.33 m² | 2.33 m² | 1.86 m² | 2.79 m² | 1.86 m² | 2.79 m² | 2.79 m² | 2.35 m² | |||||||||||||
| Total collector area | 2.6 m² | 3.84 m² | 2.07 m² | 1.28 m² | 4.51 m² | 2.3 m² | 2.3 m² | 2.51 m² | 3.84 m² | 2.16 m² | 3.99 m² | 1.72 m² | 4.9 m² | 3.8 m² | 2.51 m² | 2 m² | 4.94 m² | 3.99 m² | 1.98 m² | 2.51 m² | 3.34 m² | 4.9 m² | 2.51 m² | |||||||||||||||||||||||||||
| Tube type | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum heat pipe | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum direct heating | coaxial vacuum direct heating | |||||||||||||||||||
| Tube size (øxH) | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | 58x1800 mm | |||||||||||||
| Number of tubes | 20 | 15 | 25 | 50 | 30 | 30 | 24 | 30 | 10 | 30 | 30 | 20 | 24 | 15 | 30 | 24 | 30 | 12 | 21 | 20 | 20 | 10 | 20 | 20 | 30 | 15 | 20 | 21 | 21 | 10 | 20 | 30 | 20 | 30 | 30 | 15 | 20 | 30 | 15 | 20 | ||||||||||
Technical specs | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Max. pressure | 10 bar | 10 bar | 6 bar | 10 bar | 10 bar | 10 bar | 10 bar | 10 bar | 6 bar | 10 bar | 10 bar | 10 bar | 10 bar | 10 bar | 6 bar | 6 bar | 2 bar | 10 bar | 10 bar | 10 bar | 6 bar | 6 bar | 6 bar | 10 bar | ||||||||||||||||||||||||||
| Efficiency | 75.3 % | 95 % | 95 % | 95 % | 74.7 % | 75.3 % | 95 % | 76.7 % | 80.4 % | 79 % | 74.2 % | 95 % | 68.7 % | 73.4 % | 73.4 % | 92 % | 95 % | 78 % | 84.9 % | 95 % | 95 % | 64.4 % | 68.7 % | 79 % | 92 % | 92 % | 73.4 % | 73.4 % | 92 % | 79 % | ||||||||||||||||||||
| Mirror reflection coef. p | 5 % | 5 % | ||||||||||||||||||||||||||||||||||||||||||||||||
| Glass transparency coef. t | 95 % | 95 % | 91 % | 92 % | 91 % | 91 % | ||||||||||||||||||||||||||||||||||||||||||||
| Absorber absorption coef. α | 95 % | 95 % | 96 % | 94 % | 95 % | 95 % | 81.3 % | 95 % | ||||||||||||||||||||||||||||||||||||||||||
| Absorber emissivity coef. ε | 5 % | 5 % | 4 % | 6 % | 5 % | 5 % | 5 % | |||||||||||||||||||||||||||||||||||||||||||
| Stagnation temperature | 250 °C | 196 °C | 196 °C | 171 °C | 270 °C | 195 °C | 208 °C | 145 °C | 171 °C | |||||||||||||||||||||||||||||||||||||||||
| Heat loss coef. k1 | 3.669 W/m²*K | 3.235 W/m²*K | 2.41 W/m²*K | 0.613 W/m²*K | 3.63 W/m²*K | 3.778 W/m²*K | 0.749 W/m²*K | 0.613 W/m²*K | 1.6 W/m²*K | 3.849 W/m²*K | 2.41 W/m²*K | |||||||||||||||||||||||||||||||||||||||
| Heat loss coef. k2 | 0.018 W/m²*K | 0.0117 W/m²*K | 0.041 W/m²*K | 0.003 W/m²*K | 0.016 W/m²*K | 0.016 W/m²*K | 0.005 W/m²*K | 0.003 W/m²*K | 0.007 W/m²*K | 0.045 W/m²*K | 0.041 W/m²*K | |||||||||||||||||||||||||||||||||||||||
More specs | ||||||||||||||||||||||||||||||||||||||||||||||||||
| In box | 1 collector | 1 collector water heater | 1 collector | 1 collector | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector | 1 collector water heater | 1 collector | 1 collector | 1 collector | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector water heater | 1 collector water heater | 1 collector | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector | 3 collectors | 1 collector | 1 collector water heater | 1 collector | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector | 1 collector water heater | 2 collectors water heater | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector | 1 collector | 1 collector | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector | 1 collector | 1 collector water heater | 1 collector | 1 collector water heater | 1 collector water heater | 1 collector water heater | 1 collector water heater | 1 collector water heater |
| Expansion vessel | 5 L | 5 L | 5 L | 5 L | 5 L | 5 L | 5 L | 5 L | 5 L | 5 L | ||||||||||||||||||||||||||||||||||||||||
| Water heater capacity | 100 L | 300 L | 240 L | 300 L | 250 L | 170 L | 200 L | 150 L | 240 L | 300 L | 200 L | 300 L | 200 L | 273 L | 250 L | 150 L | 200 L | 200 L | 300 L | 300 L | 130 L | 170 L | 250 L | 150 L | 200 L | |||||||||||||||||||||||||
| Electric heater | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Frame material | aluminium | steel | aluminium | aluminium | aluminium | steel | steel | steel | aluminium | aluminium | steel | steel | steel | steel | aluminium | steel | steel | aluminium | steel | steel | aluminium | steel | steel | steel | steel | steel | aluminium | aluminium | steel | steel | steel | steel | steel | steel | ||||||||||||||||
| Dimensions (WxHxD) | 1635x1960x1360 mm | 2385x1960x1360 mm | 1041x1988x90 mm | 802x1990x188 mm | 1099x2099x110 mm | 1099x2099x110 mm | 1233x2033x80 mm | 2390x1990x188 mm | 1500x2060x155 mm | 2433x1641x110 mm | 1990x2390x188 mm | 1575x2050x160 mm | 2420x145x2010 mm | 1300x1200x2200 mm | 1233x2033x80 mm | 1006x1988x85 mm | 2432x2033x122 mm | 2433x1641x110 mm | 885x2241x150 mm | 1056x2380x73 mm | 2033x1233x80 mm | |||||||||||||||||||||||||||||
| Collector weight | 68 kg | 215 kg | 160 kg | 320 kg | 100 kg | 37.2 kg | 40 kg | 36 kg | 40 kg | 38 kg | 108 kg | 602 kg | 44 kg | 62 kg | 105 kg | 61 kg | 40 kg | 78 kg | 71 kg | 106 kg | 202.4 kg | 37.5 kg | 40 kg | 303 kg | 395 kg | 72 kg | 62 kg | 33 kg | 39 kg | 71 kg | 98 kg | 68 kg | 106 kg | 108 kg | 38 kg | |||||||||||||||
| Added to E-Catalog | january 2019 | january 2018 | april 2019 | april 2019 | january 2019 | june 2017 | june 2017 | july 2017 | january 2018 | january 2019 | june 2020 | august 2020 | august 2020 | june 2017 | june 2017 | june 2017 | june 2017 | july 2017 | july 2017 | january 2018 | january 2018 | april 2018 | january 2019 | january 2019 | january 2019 | january 2019 | april 2019 | april 2019 | april 2019 | june 2020 | june 2021 | july 2017 | january 2018 | january 2018 | january 2018 | january 2019 | january 2019 | january 2019 | january 2019 | april 2019 | april 2019 | april 2019 | april 2019 | april 2019 | july 2017 | june 2017 | june 2017 | june 2017 | june 2017 | june 2017 |
