Rheem Hot Water Systems Adelaide
Voted Best Plumber in Adelaide for 2023 and 2024!
CALL US 24/7
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10% off online bookings
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Same-day service
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Labour from $99
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No call out fees
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Excellent communication

Nothing is worse than waking up in the morning or coming from work in the afternoon to find your Rheem hot water service has failed. Water leaking from the hot water system? Temperature fluctuating or perhaps just not producing any hot water at all?
No need to worry, Horncastle Plumbing are specially trained to deal with servicing and repairs to all of Rheems many models available in Adelaide.
Call 08 8271 0664 now to talk to a licensed plumber and gas fitter. We can advise you how to make your hot water system safe before we arrive and arrange to attend the same day if required.
How we make it easy
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Contact us! Call (08) 8271 0664 or complete an enquiry form.
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We clarify your needs, confirm a quote, and schedule your work.
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Your family plumber arrives! You’ll receive a text message when we’re on the way.

View our Rheem Hot Water Systems Products
Rheem 325L Heat Pump Hot Water Systems
- Massively reduces your electricity bills.
- Ideal for Adelaide’s climate.
- Takes heat out of the surrounding air.
- Backup electrical element for the coldest of Adelaide nights.
- 5 years warranty on cylinder.
- Perfect for average to above average sized families.
- Designed to replace standard electric storage hot water systems with ease.
- Same day installation available.
Rheem 330/360 Stellar Gas Storage Hot Water Heater
- 5 Star Energy Rated
- Great choice for smaller sized gas services.
- 330L to 360L first hour capacity of hot water.
- Made and Manufactured in Australia.
- 10 year warranty on cylinder.
- Available in natural gas only.
- Suitable for up to 5 people.
- Same day installation available.
Rheem 250L Mains Pressure Electric Storage Hot Water Heaters
- Adelaide’s most popular main pressure storage hot water service
- Designed and Manufactured in Australia.
- Great for the average family of 4.
- 12 year warranty on cylinder.
- Thicker sacrificial anode for longer lasting cylinder.
- Twin element available for additional daytime boost for larger families.
- Dual handed design for faster and quicker installation.
- Suitable for overnight or j-tariff electrical connection – cheaper electricity bills!
- Same day installation available.
Rheem 160L Mains Pressure Electric Storage Hot Water Heaters
- Perfect for smaller homes with only 1 bathroom.
- Twin element available for additional daytime boost.
- 12 year warranty on cylinder.
- Great size for smaller areas where space is an issue.
- Dual handed design for faster and quicker installation.
- Same day installation available.
Rheem 80L or 125L Mains Pressure Electric Storage Hot Water Heaters
- Perfect for smaller houses or apartments with 1 bathroom.
- Single element design.
- Great for smaller families.
- 12 year warranty on cylinder.
- Available hard wired or with a plug in lead.
- Dual handed design for faster and quicker installation.
- Same day installation available.
Rheem 25L or 50L Mains Pressure Electric Storage Hot Water Heaters
- Perfect for office and warehouse kitchens or granny flats.
- Designed to fit underneath a sink or in a cupboard.
- 7 year warranty on cylinder.
- Available hard wired or with a plug in lead.
- Dual handed design for faster and quicker installation.
- Same day installation available.
Rheem 24/26/27 Metro Continuous Flow or Instant Gas Hot Water Heater
- Unlimited hot water – never runs out!
- 10 years warranty on heat exchanger
- Natural Gas or LPG available.
- 6 Star energy rated.
- Designed for 2 to 3 bathroom homes or apartments.
- Electronic ignition – no constant pilot light.
- Same day installation available.
Rheem 20 Metro Continuous Flow or Instant Gas Hot Water Heater
- Unlimited hot water – never runs out!
- 10 years warranty on heat exchanger
- Natural Gas or LPG available
- 6 Star energy rated
- Designed for 1 to 2 bathroom homes or apartments
- Electronic ignition – no constant pilot light
- Same day installation available
Rheem 16 Metro Continuous Flow or Instant Gas Hot Water Heater
- Unlimited hot water – never runs out!
- 10 years warranty on heat exchanger
- Natural Gas or LPG available
- 6 Star energy rated
- Designed for 1 bathroom homes or apartments
- Electronic ignition – no constant pilot light
- Same day installation available
We have serviced, repaired and replaced 100s of Rheem hot water units over the years and can guarantee to get you back in hot water before you know it. We know all the common problems and symptoms with Rheem hot water units such as:
- Pilot light won’t stay lit or blowing out
- Excessive water leaking from relief valve
- Can smell gas or possible gas leak
- Temperature fluctuations
- Water leaking from top or bottom of the hot water service
- No hot water
- Element or Thermostat has failed
- Gas valve or unitrol failure
- Tempering valve is faulty
- No power or gas getting to hot water system









