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Seisco Tankless Electric Water Heater for Radiant Space Heating. Model SH-18, 240 Volt - FREE SHIPPING *Out of Stock*
   Model: SH-18
Seisco Tankless Electric Water Heater for Radiant Space Heating. Model SH-18, 240 Volt - FREE SHIPPING *Out of Stock*
Base Price:  $1,017.00
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    Seisco Tankless Electric Water HeaterSEISCO Tankless Electric Water Heater for Radiant Space Heating
    Model SH-18, 240 Volt

    Seisco models virtually eliminate standby heat loss and are over 99% thermally efficient compared to industry standard 40-gallon electric water heaters rated at about 92%. A standard 40-gallon tank type electric water heater loses about 2% of its stored energy to the surrounding environment every hour!

    After 14 years of research and testing, the SEISCO, whose technology has earned its developer 5 separate U.S. and many additional foreign patents, is recognized as the STANDARD for all tankless water heaters.

    The SEISCO tankless water heater has earned International recognition for providing the highest level of temperature control performance, reliability and safety in its operation over any tankless water heater anywhere in the world today.

    Product Applications:
    The SH-18 is designed for use in residential and commercial applications for hydronic space heating and potable water heating. It is ideal for radiant floor heating, baseboard, hydro-heat pump and snow melting systems. With optional equipment, it can be used as a single heat source in combination systems for potable hot water and radiant heating. This on-demand tankless water heater is a powerful replacement for traditional tank-type heaters and is the enabling technology for use as backup to active renewable energy systems such as solar and geothermal water heating systems. The temperature activated control works effectively in re-circulating systems and in combination with tank-type heaters. A minimum 150 AMP whole-house electrical service is recommended.
    Product Benefits:
    Continuous and Endless Supply of Hot Water
    Space Savings
    Safety and Health Benefits
    Smart Technology
    No Maintenance
    Environmental Benefits

    Product Features:
    UL 834 Approval Listing for Space Heating Applications
    Works with tubing and manifold systems
    No minimum flow activation required
    Built-in DSM Utility Integration option
    Compatible with Home Energy Management Systems
    No moving parts
    Very small & compact
    Light weight modular construction
    No restriction to flow
    Standard 3/4 inch plumbing connections
    Microprocessor digital control
    Power sharing & variable power control technology
    Continuous venting
    Heats continuously only when needed, no storage
    Redundant safety devices
    High performance polymer nylon chamber material
    Built-in Leak detector and alarm
    Rust & corrosion resistant
    download pdf Seisco Warranty

    99.4% Thermally Efficient - Compact design, provides unlimited hot water

    High Efficiency - Patented powershare technology

    Wholehouse Design - Replaces old fashion tank water heaters without expensive upgrades

    2 and 4 Chambers Models
    The same advanced microprocessor technology and thermoplastic construction are used in both 2 and 4 Chamber models, therefore, many of the parts are interchangeable. There are no moving parts or flow restricting devices used in Seisco heaters.

    Flow/No Flow Detection
    Seisco uses a unique flow/no flow detection system utilizing temperature sensors for flow detection. In standby, the heater maintains a very subtle temperature gradient and flow is detected when there is a change in the gradient.

    Microprocessor Control
    The advanced microprocessor control turns the power on through a set of relays and turns the power off when flow stops. The most important feature may be the patented "Power Sharing" technology which provides for evenly distributed power to the heating elements. This in turn, helps eliminate scalding potential, scaling and sediment build-up.

    Control Logic
    The control logic allows the power level to vary which is beneficial in minimizing the use of power for periods of less demanding usage.

    Quality Construction:
    Seisco heating chambers are modular and molded of light weight thermoplastic materials. The chamber is specifically engineered for durability in harsh water heating environments and capable of withstanding extreme temperature swings and pressure changes. Heating elements, sensors and detection devices that come in contact with the water, are machined in brass or made of copper to help resist corrosion. Standard 1 inch, flanged screw-type heating elements are utilized which are interchangeable with heating elements available at local hardware stores.

    Seisco was designed with a complete array of dependable safety features to prevent harm to the user and the heater. There are several redundant safety features as well.

    Dual high temperature switches on independent circuitry in addition to the control's internal high temperature shut down.

    Dual low level detectors are used to prevent dry firing of the heating elements.

    A leak detector is mounted on the casing that in the event of a leak sounds an alarm to the user.

    Electrical Surge Protection - Although the control board is protected against electrical surges, additional heater protection is achieved when the relays are opened during periods of standby, providing no path for the surge to reach the heating elements.

    Venting System - The chamber is designed with a patented venting system that continuously vents harmful gasses and air during operation.

    The microprocessor control is programmed to provide self diagnostics that significantly reduces troubleshooting and service time. In the event of a problem with the heater, the control emits a visual or optional built-in audible code.

    There is no maintenance required of the Seisco. However, there are clean-out plates below the heater chamber to allow removal of sand and grit that may build-up from a well water system.


    Contact Customer Support
    Toll-Free help line offering product info and ordering support
    Online e-mail technical and installationsupport _________________________________________________________

    Product Specifications:

    download pdfSH-18 Specifications and Installation Diagram

    To see all models, please click here

    Product Manufacturer: Seisco

    Return Policy
    All Tankless Water Heaters are tested at the factory just prior to shipment. It is the customer's responsibility to determine if sufficient electrical capacity exists to install the water heater prior to placing the order [See Tankless Water Heater Installation Guide]. Unit sizing must be determined by the customer using the temperature rise chart based on the required flow rate.

    A 20% restocking fee will be applied to returns of new units in original packaging (see policy page for instructions). The shipping cost will not be refunded. Once the Tankless Heater has been installed it cannot be returned.

    Processing and Delivery Information: Please allow Processing Time as stated above for your order, plus standard transportation delivery time. Orders placed after 2PM EST may not begin processing until the next business day. Please call for Rush Processing and/or Rush Shipping options.

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