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The DHC-E tankless electric water heater differs from convention storage type water heaters in several ways. It does not store hot water. Instead, water is heated instantaneously as it flows through the unit. Due to the absence of stand-by losses, the DHC-E offers greater energy efficiency than storage type water heaters.

• Advanced flow control automaticall adjusts the flow of water
• Unlimited Supply of Hot Water
• Sleek Design Saves Space
• Adjustable Temperature Control
• Three Year Warranty
• Seismic Proof Construction

Medium electric tankless water heater — This heater will supply one low volume shower at a time and no other uses while the shower is in progress. We do sell larger capacity electric tankless water heaters (Stiebel Eltron DHC-E 20, DHC-E 30 and EEMAX Three Phase Industrial heaters).

The input of heat into the water is electronically controlled. The DHC-E tankless water heater will deliver any water temperature between 86 °F (30 °C) and 125 °F (52 °C). The desired temperature can be set using the knob on the front cover. The LED displays the temperature that the unit will produce.

The STIEBEL ELTRON DHC-E tankless water heaters are ideal for restrooms or kitchenettes in an office or commercial / industrial setting:

• Office Buildings
• Gas Stations
• Stores
• Schools
• Malls
• Hotels/Motels
• Warehouses
• Restaurants
• Manufacturing Facilities

In a residential setting, they are ideally suited for the following applications:

• Bathroom Sinks
• Kitchen Sinks
• Laundry Areas
• Small Cabins
• Boats/RVs

For warm climate applications only. This water heater can run a shower when incoming water is 70°F.

Specifications



The Steca TR 0301 U controller was specially developed for the North American market based on the Steca TR 0301 basic controller. With its special certification (ETL label) from a Nationally Recognized Testing Laboratory (NRTL) in the US, the controller meets the safety standards and minimum requirements of the North American market.

A feature of the Steca TR 0301 series of controllers is the animated graphic display, which offers a complete visualisation of the solar energy system's operating status and solar circuit.

The clearly arranged display ensures easy operation using pictograms. The controller was jointly designed with an internationally renowned design centre. The controller is used for monitoring and controlling solar thermal systems with one collector array and one storage tank. In addition, the controller performs important system monitoring and safety functions to ensure safe and long-lasting operation of the entire system. The numerous additional functions of the Steca TR 0301 U also include a maximum storage tank temperature function, a tube collector function, an anti-freeze function, a holiday and storage recool function as well as a choice of temperature indications in either degrees Celsius (°C) or Fahrenheit (°F). The operational safety of the system is supported by a sophisticated fault diagnosis. The multi-coloured LCD backlighting ensures quick and safe location of occurring errors and facilitates quick troubleshooting.

The Steca TR 0301 U controller is supplied with a pre-fitted US mains connection cable and a preinstalled, pluggable pump output.

CENTRAL HEATING CLEANER F5 EXPRESS

• Quick ,convenient and simple to use – doses in 30 seconds

• Added via a radiator adapter or filling loop supplied

• 100% recyclable can

• Compatible with all metals and materials including aluminium

• Removes sludge and scale and restores heating efficiency

• Removes flux residues and other debris

• Neutral, non-hazardous and environmentally formulation

Cleaner F5 Express has been designed for pre-commission cleaning of new installations in accordance with BS7593:1992, removing flux residues and other installation debris, to help extend the life of a system.

Cleaner F5 Express can be used in conjunction with Fernox Powerflow MKII machine and all known makes of powerflushing machines to remove all debris, sludge and scale from existing systems. In this way, it will restore heating efficiency and eliminate or reduce boiler noise in heavily contaminated systems.

If the system is heavily scaled the use of Fernox DS40 System Cleaner is recommended.

Cleaner F5 Express is a neutral, non-hazardous product that is well inhibited and compatible with all metals and materials commonly used in heating systems.

For continued long term protection the system should be thoroughly cleaned and flushed in accordance with legislation BS7593:1992 and Benchmark using Fernox Cleaner F5 Express, before treating with a Fernox Protector F1. We recommend Protector levels are checked regularly (annually).

Physical Properties

Colour: Amber

Odour: Faint

Form: Liquid

pH (conc): 7

pH (1% soln) 7.5 - 7.8

SG: 1.201 g/cm

3

(20°C / 68°F)

 Cleaner F5 Express will protect an average sized system (100 litres or up to ten single radiators) and maybe added via a radiator or filling loop. Fernox Cleaner F5 Express can be dispensed directly into a radiator air vent or system filling loop using the appropriate special adapter supplied with the product. Additional/repeat applications of Cleaner F5 Express may be necessary, for larger systems or if systems are heavily sludged.

When using Cleaner F5 Express with a powerflushing unit, cleaning should be completed within an hour. Use dynamic flushing with plain water until the water is clear, testing with the TDS meter as above to ensure thorough flushing.

Refill the system adding a suitable Fernox Protector for long term protection against corrosion and limescale.

In single feed indirect cylinders, e.g. "Primatic" or similar, potable water chemicals must be used.

First drain and refill the entire system with plain water. For optimum results the entire system, including drop feed radiators, where fitted, should be completely drainable. Preferably full bore gate valves with hose connectors should be provided temporarily for this purpose. Motorised and thermostatically controlled valves must be set so that no part of the system is closed off during cleaning or rinsing. Discharges must be made to the foul drain and not the surface water drain.

For open vented systems add Fernox Cleaner F5 Express via the header tank. For sealed systems add via a radiator using a Fernox Injector.

When cleaning existing systems, sludge and debris should be dispersed for at least one hour at normal operating temperatures. However, to remove hardened iron oxides and limescale, the cleaning time can be extended to up to one week under the normal heating cycle. If a radiator still has a cold spot after one hour, increase the flow through the radiator by closing the valves on the other radiators. An additional or repeat dose of Cleaner F5 Express may be necessary in some cases.

Drain and flush the system thoroughly to remove the cleaning chemical and debris. At least three complete changes of water are likely to be required. This is a crucial part of the cleaning process and must be carried out correctly. Use a rinse test meter such as the Fernox TDS meter to ensure that the Total Dissolved Solids have been satisfactorily removed. The system can be regarded as being thoroughly flushed when the system water value is within 10% of the mains water value. Differences over 10% mean that significant cleaner residues have been left in the system and further flushing is required. If not removed, cleaner residues will promote corrosion and negate the cleaning process.

Fernox Cleaner F5 Express is supplied in 280ml aerosol cans with a universal applicator set.

Fernox Cleaner F5 Express is classified as non-hazardous. But as with all chemicals: Keep out of reach of children. In case of contact with skin or eyes, rinse immediately with plenty of water. Wear suitable gloves

Good practice dictates that hydronic central heating systems should be thoroughly cleaned and flushed before installing a new boiler, after which a chemical inhibitor should be added to ensure the system is protected from corrosion, scale and sludge build-up. These procedures should also be employed when major work is carried out on a system. A clean, protected system helps ensure that the heat generated by the boiler is transmitted efficiently into the house over the long term

• Maintain the design specification and energy efficiency
• Restore energy efficiency
• Inhibit the formation of scale and sludge
• Minimize corrosion of system metals
• Product code: 59480

Contents:

• 1 x Fernox Protector F1 17.6oz (500ml)
• 1 x Fernox Cleaner F3 17.6oz (500ml)
• 4 x Fernox pH Test Strips
• 1 x Fernox Protector Test Kit Instruction Leaflet

Good practice dictates that hydronic central heating systems should be thoroughly cleaned and flushed before installing a new boiler, after which a chemical inhibitor should be added to ensure the system is protected from corrosion, scale and sludge build-up. These procedures should also be employed when major work is carried out on a system. A clean, protected system helps ensure that the heat generated by the boiler is transmitted efficiently into the house over the long term

• Maintain the design specification and energy efficiency
• Restore energy efficiency
• Inhibit the formation of scale and sludge
• Minimize corrosion of system metals
• Product code: 59480

Contents:

• 1 x Fernox Protector F1 17.6oz (500ml)
• 1 x Fernox Cleaner F3 17.6oz (500ml)
• 4 x Fernox pH Test Strips
• 1 x Fernox Protector Test Kit Instruction Leaflet

Our STR 1 includes everything that is needed for a thermal solar system. Apart from the controller for temperature differences an electronically controlled limitation of the storing temperature has been built in. Of course, it is possible to adjust hysteresis, temperature difference and max. storing temperature individually. By using the hand-gear control you can adjust the pump for testing or other operations. A display indicating the temperature informs you about the collector temperature to be stored. Another very important point was the breakdown safety switch which does not lower your solar system’s performance since it is very low in self-consumption. The regulator is supplied including a collector temperature sensor and a storage temperature sensor in the lower storage tank area for limiting the maximum storage temperature.

• Individually adjustable switch-on temperature difference, switch-off hysteresis and maximum storing temperature
• Display unit for the storing and collector temperature
• Temperature sensor with error flag
• Storing temperature limitation
• Easiest assembly and handling
• Coordinate safety concept
• Hand-gear control
• Status display