Electric Water Heater
The tankless water heater that others can only
claim to be!
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
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.
Two-chamber models designed for point-of-use
applications: Single Bath.
This on-demand tankless water heater is the enabling technology for use as
back-up 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.
RA-16 is excellent for point-of-use applications at single showers and sinks.
Ideal for supplementing existing tank-type heaters that are unable to satisfy
user requirements in beach houses, hair salons, horse stables, hunting and
fishing cabins. Great for small apartment or condominium dwelling, where
incoming water temperature rarely drops below 75 degrees F.
• Continuous and Endless Supply of Hot Water
• Space Savings
• Safety and Health Benefits
• Smart Technology
• No Maintenance
• UL 499 Approval Listing
for Water Heating Applications
Works with tubing and manifold systems
• No minimum flow activation
DSM Utility Integration option
Compatible with Home Energy Management Systems
• No moving parts
• Very small &
weight modular construction
No restriction to flow
Standard 3/4 inch plumbing connections
• Microprocessor digital
sharing & variable power control technology
continuously only when needed, no storage
• Redundant safety devices
• High performance polymer
nylon chamber material
Rust & corrosion resistant
• 2 Chambers
same advanced microprocessor technology and thermoplastic construction are used
in both 2 Chamber 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.
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.
The control logic allows the power level to vary which is
beneficial in minimizing the use of power for periods of less demanding usage.
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.
Note: Warranty is for Water Heating
Applications only and does not cover use for residential or commercial space
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
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
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.
Approvals-U.L. CSA NSF HUD NEC
* Optional one (1), 75 AMP circuit supply –
Check with manufacturer
Seisco RA 16
|Heat Output (max.)
|Power Rating (max.)
|Voltage Rating (Nominal)
|Current Rating (max):
||8000 watts x2|
||Two (2), 2-wire w/ground*|
||Two (2), double-pole*|
||30 AMPS each x 2*|
|Temp. Output (dial)
||90F to 130F (32C - 52C)**|
Rise (Deg C) @ Flw
||52° F @ 2.0 GPM|
||42° F @ 2.5 GPM|
||34° F @ 3.0 GPM|
||25° F @ 4.0 GPM|
Rise (Deg C) @ Flw
||27° C @ 8 L/min|
||22° C @ 10 L/min|
||18° C @ 12 L/min|
||13° C @ 16 L/min|
||15 lbs (7.0 kg)|
||15 3/4" (400mm)|
||10 1/4" (260 mm)|
||6 1/4" (159mm)|
||14 1/4" (362 mm)|
||10 7/8" (276
• for jumpers that must
be installed on control board for this option.
** Temp. output dial Factory
set to 120F (49C).
(***) T&P Relief Valve not required by Mfg. RA-16 Specifications
To see all models, please click here
Product Manufacturer: Seisco
HELP » Contact Customer
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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
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