| The OSO-Thermo Tank
Our most advanced Water Heater
for the future.
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![]() OSO-Thermo RTS 200-3 |
Stainless Steel Inner
Vessel Made from a high quality ferritic grade of stainless steel with sacrificial anode as option. |
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| This combination of steel and technology is the key to OSO lifetime economy. Original - OSO were the first manufacturer to successfully weld stainless steel and produce a Water Heater from this material. | |||
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OSO ECO FOAM insulation OSO uses high density, water based flame retardant polyurethane foam insulation which provides for high energy efficiency ( heat storage ). |
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| This ensures that money spent on heating water isnt lost through dissipation. | |||
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Long Life High-Low-Element The high quality immersion elementys has a large surface area and low watt density for excellent long life performance. Connections for: 1.5-3 or 4.5 kW, 208-240 single phase or 208-400 V three phase. |
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High efficiency When using the OSO MIXING VALVE and 75°C storage temperature, you get more hotwater from a smaller tank. |
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Lifetime Economy OSO-Thermo saves both resources and money for you, because of a long life stainless steel tank, and low heat loss due to high efficiency foam insulation. Extra connection for optional anode, if more than 50 mg ppm chlorides salt in the water. |
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Easy to Install Adjustable feet compensate for a sloping floor. Choose top or side connection for cold water inlet. P & T relief valve is factory installed on the side ( UK only ). Top opening available for 3/4" P & T valve. Water connections are 3/4" NPT. |
| OSO Water Heaters - pleasing to the eye, easy to install, economical to operate, well insulated to reduce heat loss, and expertly produced in an ISO 9002 plant which considers the Worlds Environment and its natural resources Ask for it by name OSO-HOTWATER. | |