30+ years of experience
Complete DIY Installation Kits for Heat Recovery Ventilation
Now you can capture and reuse the heat/chill you’ve already paid for… using one of EnergyLabs’ DIY* complete and easy installation kits (*with the help of any licenced electrician).
How?
EnergyLabs offers Complete Heat Recovery Ventilation Kits – making it easy for you to install (with no missing parts) and get your heat recovery ventilation system up and running:
For habitable floor areas of up to 70m2 choose the 2-units kit. For areas of up to 140m2 choose the 4-units kit, up to 210m2 choose the 6-units kit and up to 280m2 choose the 8-units kit.
Not sure and want expert help? Get our expert design service ($179), send us your house plans and we’ll prepare a custom design of your heat recovery ventilation system for best performance, including a detailed list of parts and complete with pricing.
MEDIUM Instantaneous Hot Water Heater 3-Phase DEL 18 Plus
Compared to electric hot water storage systems, instantaneous hot water heaters can be up to 30% more efficient. How is this if they both use electricity as the heat source? Well its simple - electric hot water storage units hold a lot of hot water inside them and have a very large external surface area. Even though the outside of the tanks are insulated, heat is still lost through the insulation, the tank valves and connections into the external atmosphere (or inside in your cupboard). Instantaneous water heaters don't have this problem - they heat water instantly only when you need it.
The DEL 18 Plus is suitable for supplying hot water to a single or multiple draw-off points, e.g. supply to bathroom and a kitchen.
And because it's an instantaneous water heater you'll have endless hot water - it never runs out.
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
With backlit multifunction display, temperature memory, childproofing, and ECO mode, it offers best-in-class comfort and convenience.
The energy and water saving ECO mode can be used to limit the maximum flow rate of the DEL Plus to enable a constant DHW temperature, even where inlet temperatures are low.
Features
- Made in Germany (guaranteeing you an efficient and reliable product)
- Maximum hot water output temperature 50° Celsius, no tempering valve needed (saving space and $$$)
- Electronically controlled continuous flow hot water delivery with 3i Technology (accurate and constant temperature delivery)
- Temperature memory function keys (switch between two pre-set temperatures)
- Quiet operation (won't disturb anyone)
- Suitable for hard or soft water areas due to the Rapid Bare Wire Heating System (long lifespan and no maintenance required)
- Electronic safety protection, with air bubble detection (your safety is guaranteed)
- Single piece design (makes installation quick and easy)
- Suitable for preheated water (e.g. in solar thermal and heat pump systems)
- Warranty: 5 years for domestic use, 1 year for commercial use.
Description
The unit is a sealed (unvented) mains-pressure tested appliance for use with all commercially available pressure taps.
The DEL Plus water heater requires no safe tray, flue or ventilation.
Electronically controlled instantaneous water heater with 3i technology. Accurate temperature delivery up to the maximum output. Temperature selection from 30 - 50°C via rotary selector, temperature adjustment for showers in 0.5 °C increments.
Backlit multifunction display to show set temperature, current power consumption, status and service indication.
Memory function for 2 programmable temperatures of choice.
Pivoting appliance cover and programming unit for increased operating convenience in under-sink installations.
Saves energy and water by means of electronic output control with 3i technology.
What is 3i Technology? 3 sensors ensure that the selected temperature is accurately achieved. For this, only the actual required amount of energy is expended; there is no need to add cold water at the tap. This ensures maximum energy efficiency.
ECO mode can be individually selected for particularly economical operation.
Childproofing feature limiting output temperature to 43°C included as standard.
Piping can be connected from below the unit or discreetly from the wall behind.
Kit Contents
Included in Kit:
- Instantaneous DEL Plus water heater
- Installation kit (wall bracket, plugs, gaskets, tees, caps, strainer, washers, etc.)
Possibly required on-site according to installation type:
- Cold Water Feed Isolation Valve
- Pressure Limiting Valve
Learn More: Hot Water Heat Pump Knowledge
White Paper by Stiebel Eltron -> The Benefits of Decentralising Hot Water Systems in Multi-residential Buildings
Video by Stiebel Eltron -> Why use an instantaneous water heater?:
FAQ
- What else do I need to complete the installation? Generally all that's required is a power supply and space for the installation... apart from this, nothing, we send out a kit that can be installed immediately. Please note that to comply with regulations some installation types may require additional valves (see above in Kit Contents).
- What is the warranty on the water heater? Stiebel Eltron provides a 5-year domestic warranty, and a 1-year commercial warranty on the DEL 13/18/27 Plus units.
- Does the DEL Plus need a tempering valve to limit the hot water to 50 degrees Celsius? No, the DEL Plus hot water system delivers hot water not exceeding 50 degrees Celsius in accordance with AS3498, overcoming the need for a tempering valve in hygienic areas where the water must be limited to not exceed 50 degrees Celsius.
- What's the difference between the different DEL water heater models? The only difference is in the water heating capacity, otherwise they all have the same functions.
- Where can the DEL Plus instant hot water system be installed? The DEL Plus water heater can be installed almost anywhere due to its compact size. The water heater does not require ventilation, relief drain or safe trays so it can be installed in a cupboard, in the roof space, below the sink, in a service cavity, in a Euro laundry just to name a few options. If installing outdoors, the hot water system must be protected from the elements by a protective covering such as a meter box.
- How far can the water heater be installed from the hot water outlet? The DEL Plus water heaters are designed to be installed as close as practical to the most used hot water outlet. Installing closer to the point of use can help to save water and energy by delivering hot water quickly to the outlet. The STIEBEL ELTRON 3 phase electric instantaneous water heaters are designed to service multiple outlets located several metres away from the system.
- What size instantaneous electric water heater do I need for my apartment or house? As a general rule, the instant hot water system required will be based on the number of hot water outlets the hot water system needs to service, along with the incoming cold water temperature. As a general guide in an apartment/house with 1 bathroom, a 19.4kW three-phase electric instantaneous water heater (e.g. DEL 18 PLUS) is suitable. In a house with 2 bathrooms, a 28-29.1kW three-phase electric instantaneous water heater (e.g. DEL 27 PLUS) should be selected.
- What happens after I order the unit and pay? We will be in contact with you to confirm the order, delivery address and timeframe, and any other questions you may have.
- How long until I receive my order, and is there a delivery fee? Within Australian state/territory capital cities delivery is free (excluding Darwin), and your order will usually arrive within 3 business days. For orders outside of capital cities, we offer a flat-rate fee of $200 for delivery.
Additional Products
- Highly Effective Water Filtration Systems by Stiebel Eltron available at Stiebel Store
- Complete Installation of this Water Heater (Perth only) from $500.00+GST by Euroheat Australia
Technical Data
| Model number | DEL 13 Plus | DEL 18 Plus | DEL 27 Plus |
| Rated Output (415V) | 14.5kW | 19.4kW | 28kW |
| Rated Current (415V) | 20.2A | 27A | 38.9A |
| Connection | 3/PE | 3/PE | 3/PE |
| Fuse Protection | 20A | 32A | 40A |
| Switch on Flow Rate | 2.5L/min | 2.5L/min | 2.5L/min |
| Temperature Settings | Off, 20 - 50°C | Off, 20 - 50°C | Off, 20 - 50°C |
| Water Connections | G 1/2 A | G 1/2 A | G 1/2 A |
| Max. Permissible Pressure | 1000kPa | 1000kPa | 1000kPa |
| Max. Inlet Temperature for Reheating | 50°C | 50°C | 50°C |
| IP Rating | IP25 | IP25 | IP25 |
| Height | 466mm | 466mm | 466mm |
| Width | 225mm | 225mm | 225mm |
| Depth | 116mm | 116mm | 116mm |
| Weight | 3.2Kg | 3.2Kg | 3.2Kg |
| Colour | White | White | White |
Downloads
STIEBEL ELTRON Data Sheet DEL Plus PDF 782.24 KB
DEL Plus Operation & Installation Guide PDF 9.28 MB
DEL Plus Dimensions PNG 59.45 kB
DEL Plus Exploded Diagram PNG 824.59 kB
DEL Plus Minimum Spacing PNG 101.86 kB
This is
When do DIY Installation Kits make sense and why
Why is it easy to install?
You don’t need any ducts – you will get a few in-wall units which talk to each other and simultaneously extract stale air and supply fresh air into the room, while recovering as much energy as possible during the process.
Decentralised heat recovery ventilation solutions are ideal for retrofitting to existing buildings, or new buildings that have minimal ceiling or roof space available. This is because with a decentralised system there are no ducts to run – there are simply a few in-wall units which talk to each other and simultaneously extract stale air and supply fresh air into the room, while recovering as much energy as possible during the process.
How is the EnergyLabs’ Complete Heat Recovery Ventilation Kit different to standard ventilation?
There are two main types of ventilation systems in Australian buildings: extraction-only air systems and supply/extract air systems.
The simplest and cheapest method for ventilation is an extraction-only air system. This is the system you will recognise from almost all houses in Australia – unwanted air is removed via ducts from areas such as the kitchen, bathroom and toilet. But the air that is extracted and pushed out from the building must then be replaced somehow… and this replacement air from outside has traditionally just seeped its way into the building via the small openings and cracks around windows, doors, ceiling & roof, etc.
Now in theory this simple and cheap way works, but the air that is getting sucked into the house through all the openings and cracks is costing us money. In winter this air is cold, and therefore we have to pay to heat it up… and the same is true in summer – the air coming in is hot, and we have to pay to cool it down.
But unlike an extraction-air system, a supply/extract system first strips the unwanted extract air of its thermal energy, and then it transfers the majority of this energy to the fresh air that is being supplied into the building. And to achieve this a pair (or pairs) of decentralised heat recovery ventilation units can help you.
How does the whole EnergyLabs’ Complete Heat Recovery Ventilation Kit work? (and why it will save you money)
For example in winter the outside air may be 7°C, but inside your home it’s a comfortable 21°C. A simple extraction-only air system would exhaust to the outside 21°C air from your house, and then draw in 7°C air from outside… which can be uncomfortable for those inside, but most of all costs you money to heat up this cold air to 21°C again.
However, a supply/extract air system would in this situation extract the heat from the stale 21°C air first, and only then exhaust it at ~9°C. The fresh incoming cold air from outside would be at 7°C before it passes through the special crossflow heat exchanger, but then it’s supplied into your home at 19°C… meaning you don’t experience discomfort and you dramatically save on your heating bills, while having high quality (and filtered) fresh air supplied throughout your home.
It’s important to remember that heat recovery ventilation systems do not actively heat or cool your home – they only help you keep more of the energy you already have in your home while enjoying clean fresh air and minimising your energy bills. (Some HRV systems do however have night purge, which during summer allows you to pump out any warm air from inside your home, and replace it with cool night air)
When to get the EnergyLabs’ Complete Heat Recovery Ventilation Kit
FAQ
What else do I need to complete the installation? Apart from some screws, power, and some low voltage cabling between the units and controller, nothing extra is required, we send out a complete kit that can be installed immediately.
What is the warranty on the HRV unit and the system? Stiebel Eltron provides a 2-year warranty on all components supplied.
How do I know where to put the vents and install the different system parts? We offer a free design service with every purchase – just supply us with your building plans and we send you back the design.
What happens after I order the unit and pay? We will be in contact with you to confirm the order, delivery address and timeframe, system design (if required), and any other questions you may have.
How long until I receive my order, and is there a delivery fee? Within Australian state/territory capital cities delivery is free (excluding Darwin), and your order will usually arrive within 5 business days. For orders outside of capital cities, we offer a flat-rate fee of $200 for delivery.
At our parent company Euroheat Australia we’ve been engineering, installing, and servicing heating, cooling, hot water, and ventilation equipment for 30+ years. And since we’ve used them and know which products work best, the EnergyLabs promise is simple: what you get has passed the test.
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