A smiling technician holding a digital tablet next to an outdoor hot water system.

Hot Water Calculator

Greater Brisbane, Gold Coast and Sunshine Coast
 
Queensland Building and Construction Commission
Licences QLD
Licences ARC tick
Licences-Solar-S7166503
Licences Security
Master Plumbers Association of Queensland
Gold Master Electrician
Special Offer

Trade in Your Old System for $150* Off

T&Cs Apply, See Below

Not Sure What Hot Water System Size You Require In Brisbane, Gold Coast, Logan, Ipswich, Moreton Bay, Redlands and Sunshine Coast?

Once determining the below factors you should be able to come to a definitive decision about which size hot water system is best going to suit your needs and save you money in terms of efficiency.

Still have questions? Speak to us on 1300 054 488 to get professional advice specific to your requirements. You can also enquire here.

Only include loads that use hot water.
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Good Better Best Options for Every Home and Budget

More Choice. Clear Options. The Same Trusted Fallon Service.

Every home, job and budget is different. That’s why Fallon Solutions now offers Good, Better, Best* options across our home trade services.

Instead of a one-size-fits-all recommendation, your technician will assess the job, explain what they’ve found, and provide clear options so you can choose the solution that best suits your home, your needs and your budget.

Whether you need a safe essential fix, a longer-term upgrade, or the most comprehensive solution available, you stay in control.

How Good Better Best works:

  • Good: A safe, practical option to get the issue fixed.
  • Better: A stronger solution designed for improved performance, reliability or efficiency.
  • Best: A premium option offering the highest level of comfort, durability, efficiency or warranty coverage.

With Fallon Solutions, you’ll receive clear advice, upfront options and the same trusted workmanship backed by our limited lifetime labour warranty.

*T&Cs apply

Trusted by over 8,500+ reviewers on Google.

Rated 4.6 stars from more than 8,500 reviews in Brisbane

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Rhiannon Darcy profile picture
Rhiannon Darcy
1 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Chris R from fallon's was wonderful! So informative, did a full assessment of our dishwasher and had it fixed in no time! First time using Fallon's will definitely be using this wonderful service again!
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Edna Budd profile picture
Edna Budd
1 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Technician courteous and efficient. Pleasure to deal with.
Posted on Google Google
Jayden Hellyar profile picture
Jayden Hellyar
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Air con technician Nick was great!
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Daniel Tse profile picture
Daniel Tse
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
David Brown has been provided excellent service to me for my home security system. He is very friendly, thorough and very professional. I appreciate his help.
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Richard Scott profile picture
Richard Scott
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Fantastic work, photos and video of what needed on pipe reline and ten years warranty on work 👏
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Pat Anderson profile picture
Pat Anderson
29 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Well done good job.
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WT profile picture
WT
29 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Damien is very professional, thorough and friendly. Feel we are in safe hands when it comes to electricity work. Wayne is very professional, reliable and efficient, he answered so many of my queries patiently and clearly re the newly installed hot water system..
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Suzie Rodgers profile picture
Suzie Rodgers
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Chris Radcliffe from Fallon Sollutions, this morning was so excellent at his job. He was very knowledgeable about every detail that caused my washing machine to flood and malfunction. He went the extra mile and pumped all the dirty water out as well, while making me feel listened to, important and valued. He was super friendly too. I highly recommend Chris and hope to see him again if I need to.
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Chris Devine profile picture
Chris Devine
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Thanks so much to Daniel for fixing our washing machine the same day we called. Returned late at night from an overseas trip to a washing machine that couldn't take four suitcases of washing. All fixed, thanks so much.
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Tara Stevenson profile picture
Tara Stevenson
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Nick AC tech completed a great job today cleaning all 5 of our split system air-conditioning units in our home. On time, efficient, and tidy work. Thank you Nick.

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