Rezi FAQs

Why buy a Rezi water heater?

Primarily, your Rezi water heater will save you money in several ways:

For a start, it is probably the lowest priced device of its type available in Australia, beautifully designed and manufactured in Europe, complete with a genuine two year warranty.  They are popular throughout Europe, having won many awards. Thousands of Rezi water heaters have been sold in Australia over the past nine years.

Your Rezi will save you

TIME,

POWER,

WATER,

SPACE and even

TAP FITTINGS.

1    The Rezi is tiny, designed to be installed close to your water outlet. You save the TIME it takes for hot water to arrive at the tap.

2        The Rezi heats water only when the hot tap is turned on. You save POWER because you heat only what you use.  There is no storage or wastage of heated water cooling off in long pipe runs.

3        You save WATER because you don’t watch water running down the sink while you wait for hot water to arrive.

4        If you already have your own tap fittings the Rezi can be mounted “in-line” under the sink or basin.  You will save SPACE by installing your Rezi at any convenient angle – vertical, horizontal, upside down – whatever makes sense.

5        Mounted above the sink, the Rezi comes complete with its own MIXER TAPS and SWIVEL SPOUT so depending on your situation, you may not need to purchase expensive fittings.

Which Rezi for me?

Presently we offer three 240V (single phase) and three 415V (three phase) models. 

The model you choose will depend upon the power (in Amps) that you provide and will affect the volume of hot water you can achieve.

240V Single Phase Models

Rezi 3.3kW has been specifically designed for caravanners. It draws 13.75 Amps @ 240V and produces 2.1litres of hot water per minute (lpm).  Typically caravan parks provide 15 Amps to each site so the Rezi 3.3 won’t brown out the neighborhood!

Rezi 4kW is ideal for under the kitchen sink. It draws 16.7 Amps @ 240V and produces 2.3 lpm.

Rezi 5kW is great for general household use.  It draws 20.8 Amps @ 240V and will provide 3.0 lpm.

415V two(2) Phase plus Earth Models.

Rezi 7.5Kw, 9kW and 11kW all require 415V connection and must be installed by a qualified electrician.  415V can kill!  Although 415V is generally referred to as three phase, these models use two of three phases plus earth.

Rezi 7.5kW draws 18 Amps per phase and provides approx. 4.5 lpm.

Rezi 9kW draws 21.7 Amps per phase and provides approx. 5.5 lpm.

Rezi 11kW draws 26.5 Amps per phase and provides approx. 6.5 lpm

How hot is “Hot Water”?

All Rezi water heaters look and operate the same way.  Cold water is passed across heating elements which add approximately 25C degrees to the ambient (incoming) temperature. The higher the power of the unit, the more hot water is produced.  Water temperature remains constant across all models.  Hot water volumes quoted above are all based on 40C (ambient 15C + 25C).  Ambient temperature will obviously vary across Australia depending upon where you are and the time of year.

Rezi heaters can produce water at higher temperatures, up to 55C, by reducing the water flow at the hot water tap or mixer. A lower flow rate gives the element more time to heat the water.

Can I have a Shower?

Sure can, provided your expectations are within the water flow constraints given above.

All Rezi models will usually need cold water added to give a comfortable shower.  You will need a water-reducing shower head to get a reasonable shower effect. Don’t expect Niagra Falls! We can provide an inexpensive but efficient shower Rezi accessory if required.

Any questions?

If you are unsure on any matter, please email to sales@retaildisplaysigns.com.au so we can add your question and our response to this list.

Thanks for reading!