Ηλιακοί Θερμοσίφωνες

ELCO SOL-TECH S2 160 / 3,0 & 160 3 / 3,0 CALDERA

The New ELCO SOL-TECH S2 Solar Water Heaters combine the best DURO GLASS enameled-glass boiler, with the most efficient ELCO CS Full-Plate BLUE TITANIUM selective collectors!

They incorporate a range of design and manufacturing improvements that offer even higher performance and durability.

• Solar Water Heaters with one or two Heat Exchangers 
• Solar Water Heaters with one or two Heat Exchangers, closed circuit, with recirculation connection or thermocouple (RS Models)
• Models suitable for 3-4 people
• Boiler Energy Class C
• Collectors' Surface: 3,02m²
• Models for low height installation on flat roof (CALDERA)
• Heating element: 3,7kW
• 5-year warranty*

• Boiler energy class C
• Boiler made of special specifications DC03 sheet metal in conformity with EN10139, tested at 16 bar
• Boiler internally protected by DURO GLASS enamel
• Cathode protection of the boiler by two extremely large magnesium rods
• Internal expansion tank for steady performance and excellent aesthetic result
• Large surface solar circuit jacket-type exchanger 
• Internally and externally enameled connection tubes and new-design washers made of ultra-resistant to solar radiation material for better water-tightness
• Greater protection of the boiler against environment conditions thanks to the entirely stainless steel (AISI 304) outer shell
• High density, ecological, HCFC-free, closed-cell expanded polyurethane boiler insulation, of 50mm thickness and 52kg/m³ density with λ=0,021W/mK
• Reduced salt build-up inside the tank and easier maintenance thanks to the newly designed stainless steel (AISI 316L) low charge (1400mm length) heating element
• Safety thermostat with built-in thermoelectric safety fuse
• Models with large-surface enameled heat exchanger G3/4" (coil) for connection to the central heating circuit
• Safety valve with membrane and drainage 
• New models with recirculation connection or thermocouple (RS Models)

• High-performance selective solar collectors 2x1,5m² with Solar Keymark
• Single selective BLUE TITANIUM absorber, laser welded for absolute bond with the hydroskeleton. Absorbency coefficient a=95% (±2%), Emission coefficient ε=5% (±2%) 
• Mistlite Tempered Low Iron Safety Glass (100% shatterproof) of high permeability τ=92%
• Hydroskeleton made of copper
• Rock wool thermal insulation of low thermal conductivity   
• Collector frame made of anodized aluminum without any plastic connections or seams 
• The back of the collector is made of galvanized sheet metal and is connected to the frame with EPDM sealants for absolute water tightness  
• Special thermal fluid that completely protects from frost, overheating, salt deposits and oxidation 

• Hot-dip galvanized support base of low height (44^o) for flat mounting