Solahart L Series Mackay
Australian Made Solar Hot Water That Lasts
Our flagship roof-mounted solar water heater, the Solahart L Series 302LF18T, is Australian made, sized for the family home and fitted by your local Mackay team.
- Locally owned
- 70+ years heritage
- 4.8★ from 15,000+ reviews
Hot Water, Free From the Sun
Solahart pioneered solar hot water in Australia more than 70 years ago and still sets the benchmark today. Each unit is built and tested for harsh Australian weather and carries a genuine Australian product warranty, giving Mackay households dependable hot water and smaller power bills for the long haul.
Key Specifications
Solahart L Series 302LF18T at a glance
- Model
- 302LF18T
- Type
- Roof-mounted thermosiphon
- Tank capacity
- 300 L
- Collectors
- Twin flat-plate
- Made in
- Australia
- Rebates
- STC eligible
Why Homeowners Choose It
Key benefits
- Australian made and engineered for the roughest local conditions
- 300 litre capacity that suits family households
- Free solar energy heats your water the year round
- Electric boost steps in through cloudy stretches
- Eligible for federal STC rebates that trim the upfront cost
- Backed by the Solahart Australian Product Warranty
Why The L Series
The Original Solahart, Only Better
The roof-mounted Solahart is the system that put the brand on the map, and the L Series 302LF18T is the most polished version to date. Australian made and proven over decades in the harshest conditions, it heats a 300 litre tank on free energy from the sun. For Mackay families chasing serious hot water savings, it is the flagship pick.
How It Works
Dependable Thermosiphon, No Moving Parts
Twin flat-plate collectors soak up the sun's heat and let the water rise naturally into the tank above, so there are no pumps and nothing to wear out. When it clouds over, an electric booster steps in so you never cop a cold shower. It is a beautifully simple design that just keeps ticking along year after year in CQ conditions.
Customer Reviews
Trusted By Thousands Of Central Queensland Families
Tidy job with top-shelf panels
Cracking job and a really tidy install. The crew ran everything past me along the way and were a great help getting the app going for live monitoring. On the sales side they knew their stuff, kept it professional and actually listened to what we wanted. Brilliant value too, using the best panels goi…
Otto van Nek
22 years on and never a hitch
Every one of the staff was friendly, helpful and quick to get back to us. Getting through the yard wasn't easy, but the installers were organised and took care with it all the same. Neat work, and they left everything spotless. We first bought from Solahart back in 2000, and that first system gave u…
Marie Mann
Sharpest looking solar install around
It was clear from that very first phone call these were professionals, and the detailed modelling in the quote sealed it for me. Every question I threw at Victor and Dylan got an answer, and what they left behind is honestly the best looking solar install I've seen around here. No corners cut, no ru…
John Ward
Tidy job with top-shelf panels
Cracking job and a really tidy install. The crew ran everything past me along the way and were a great help getting the app going for live monitoring. On the sales side they knew their stuff, kept it professional and actually listened to what we wanted. Brilliant value too, using the best panels goi…
Otto van Nek
22 years on and never a hitch
Every one of the staff was friendly, helpful and quick to get back to us. Getting through the yard wasn't easy, but the installers were organised and took care with it all the same. Neat work, and they left everything spotless. We first bought from Solahart back in 2000, and that first system gave u…
Marie Mann
Google Reviews
Sharpest looking solar install around
It was clear from that very first phone call these were professionals, and the detailed modelling in the quote sealed it for me. Every question I threw at Victor and Dylan got an answer, and what they left behind is honestly the best looking solar install I've seen around here. No corners cut, no ru…
John Ward
Tidy job with top-shelf panels
Cracking job and a really tidy install. The crew ran everything past me along the way and were a great help getting the app going for live monitoring. On the sales side they knew their stuff, kept it professional and actually listened to what we wanted. Brilliant value too, using the best panels goi…
Otto van Nek
22 years on and never a hitch
Every one of the staff was friendly, helpful and quick to get back to us. Getting through the yard wasn't easy, but the installers were organised and took care with it all the same. Neat work, and they left everything spotless. We first bought from Solahart back in 2000, and that first system gave u…
Marie Mann
Big system done in a single day
Professional the whole way through, from Marty locking in the install date to the terrific work by Victor and his crew. We couldn't be happier, especially that a system this size went in inside one day. If solar's on your mind, save yourself the hassle and go with Solahart.
Cameron Atkinson
Worked to suit a pensioner budget
When the tradie looked over our place, he saw we'd be much better off ditching the old electric system for a Solahart unit that could trim the power bill by as much as 75%, and for a lot less outlay. Living on the pension, a saving like that makes a real dent in what we have to find each quarter.
Kevin Fox
Friendly crew, tidy heat pump job
Friendly service start to finish, from the on-site quote through to getting our new heat pump system in as quick as they could. The crew got through the work fast and well, were more than happy to field questions, and left the place neat and tidy once they'd cleaned up.
Dean Stockham
Quote to install inside a month
They came back to me inside 24 hours of my online enquiry, came out to quote it up, and had the whole thing finished within the month. Can't ask for better than that. Rapt with both the workmanship and the way they kept me in the loop.
Edward Cook
Panels and a battery, kept well informed
Really pleased. Had the panels and a battery put in, with prompt service and plenty of communication throughout. Happy to recommend them.
Nathanuel Holland
Cracking system running perfectly
Two years back we'd had solar fitted at another house and it was a shocker of an experience. This time was a world apart. Runs a treat and the installers were lovely to deal with. All round a brilliant company, and we'd absolutely use them again.
Glenda Stirling
Great sales team and top plumbing
A good run from start to finish, with friendly sales reps, then first-rate plumbers who left a neat, professional job. Best money I've ever handed over.
Robert Vecchio
Polite, clued-up installers all round
Right from the office staff through to the crew who put in our hot water system, dealing with Solahart Mackay was a pleasure. The installers were courteous and really knew their trade, and nothing was ever too much bother. Happy to recommend them.
Edward Strong
Sharp pricing and a respectful crew
Quick to reply, friendly and genuinely helpful. Once I'd paid, the install went in fast. The new owner has a way of putting you at ease and clearly treats customers as a priority. As a woman home on my own, I appreciated how relaxed and easygoing the install crew made things, being very respectful a…
Briella Marshall
On time, tidy and easy to talk to
Quote through to finish, always on time, kept me posted, and the tradies were tidy and polite. Full marks! Cheers.
Peter Rollo
Enquiry to install in just five days
Brilliant from start to end, only five days between my enquiry and the install going in. Fast, friendly service that made the whole thing effortless.
Tara Radunz
Slick heat pump water heater fit
Had a heat pump water heater put in by Solahart not long ago. The install was handled really professionally and the service left me chuffed. Can't recommend them highly enough. Nice work, Solahart Mackay.
Jim483
Top-notch, friendly tradies once more
Marty and his crew have come through with terrific service yet again. The tradies who turn up to our place are skilled, easygoing and genuinely approachable.
Robert Newton
Fast to act, courteous throughout
They jumped on my initial request straight away and got things moving. Everyone was polite and thoughtful about shutting off the water and power, giving us plenty of warning first. Really impressive.
Vanessa
Efficient service won back my trust
This time around Solahart was a complete turnaround from what I'd known before. They showed up right when they said they would, sized up the problem and sorted it. Mitch the plumber was easy to chat with, got on with it, and took the time to explain what he'd done. Faith well and truly restored!
Sallie Matta
New owners sorted old system problems
Solahart's new owners have done a remarkable job cleaning up the mess left by the previous lot. They wasted no time sending a technician to go over my system and make sure it was all running as it should, something I'd been chasing for months. Ken has been genuine and kind every time we've spoken. W…
Jaquilyn Griffin
Urgent swap done ahead of schedule
The whole thing was painless. When I first rang about an urgent Solahart hot water replacement, they quoted two weeks to order it in and install. Usually two weeks turns into three, but they had it sorted in a touch over a week.
Karen D Richards
Helpful team, dependable installers
Can't speak highly enough of Solahart Mackay. Everyone's friendly, helpful and gets things done. A big thanks to Maddisson, who organised the lot for us. The blokes who fitted our panels were reliable and easygoing, showing up exactly when they said and keeping us informed the whole way.
Pauline Grabham
Always there for the local crowd
The Solahart team are genuinely fantastic, never too busy to help out and walk you through any question you can think of. A shoutout to Ken at Solahart Mackay, who always looks after the locals. Couldn't recommend them more!
Bradley Apex Group
Well-coordinated crew, swapped in a day
We had a solar hot water unit replaced recently, and it meant redoing roof sheeting across two sections of the roof. The trades worked so efficiently there was never any need for a temporary unit. The old one came off and the new Solahart unit went on all in the same day.
Barry Jard
Ken took the hassle out of solar
Ken at Solahart Mackay is an absolute champion. He got my solar sorted and was a ripper to deal with the whole time. Thinking about going solar? Ken's the bloke to see.
Bradley O'Neill
A local mob who explain it plainly
Going with Solahart was about backing a local outfit. They knocked the job over quickly and professionally, and the service was friendly and helpful throughout. Best of all, they broke down everything we needed to know about solar in plain terms. Highly recommend them.
Kyeta Ferricks
Skilled, helpful installer nailed it
Phillip the solar installer really knows what he's doing, full of knowledge and helpful at every turn. We're thrilled with the service he gave us. Great job Phillip, thanks a lot.
Hot Crusher
Fast install, app walkthrough spot on
The install team were in and out quickly with no hanging about. Great to deal with, and they left everything tidy. They also took me right through the monitoring app in real detail.
Kelly Gray
Bloody good service, tidy install
Bloody good service, and the blokes did a really nice job on the install. Couldn't be happier.
brainstains 82
Professional job, panels look brilliant
Big thanks to all the Solahart staff for the professional way you installed our solar panels. They look brilliant up there. (Brian and Isla Baker)
Roseanne West
Professional office, chatty install team
Every time I called into the office I was looked after professionally and without any delay. On install day there was plenty of communication and the workmen were friendly. Cheers Solahart.
Bridget Conder
Painless install, friendly and neat
Great service all round. The install was painless and the blokes were friendly, tidy and did a solid job. Pleased with how it turned out.
The Wallers
Smooth, stress-free from the get-go
These guys were fantastic. The whole process was easy and stress-free. Recommend them without hesitation.
Karen Tom
Polite team who met every request
Lovely team to deal with. They took care of everything I asked and were polite the whole time.
Kylie
Professional job, thoroughly pleased
Excellent service! The job was handled professionally. Really pleased and happy to recommend them.
Thu Nguyen
Friendly staff, prices that stack up
Friendly staff, top service and prices that stack up nicely. Would recommend this company and the new management. (Julie and Keith)
Julie Ede
Fantastic service, no bother at all
Fantastic service, and nothing was ever a bother to them. I'd highly recommend the lot of them.
Trevor Webb
On time and no fuss whatsoever
Turned up on time and knocked the job over with no fuss at all. Great work.
Bruce Lea
Professional yet friendly all round
Professional service, and friendly with it.
Jerry Burian
Service, install and product all great
The service, the install and the product were all great!
Greg O'Shea
Prompt, friendly, helpful, the lot
Great service that was prompt, friendly and helpful.
Karenne Goerg
Organised and genuinely helpful
Nicely organised and helpful throughout.
Kelly McGuire
Solid effort from everyone involved
The whole team did a good job.
Basil Eremenco
Helpful even when flat out
Really helpful even when they were flat out.
Randall Holliday
Quick off the mark and professional
Quick to respond and thoroughly professional.
Ron Rogers
Helpful and full of good info
Really helpful and they kept me well informed.
Susan Cadger
Professional through and through
A thoroughly professional lot.
Greg Marbach
Happy to recommend them
Happy to recommend them.
Josh Kirkman
Great to deal with, faultless install
Absolutely great to deal with, a faultless install, and top customer service to boot.
Blair William
Caring, and always tracks down an answer
Anakee from Solahart Mackay has looked after me and I'd recommend her in a heartbeat. Whenever she didn't have the answer on hand, she'd chase it down quickly or steer me the right way. A genuinely caring, helpful person.
Lacy McDonald
Why Choose Us
Why Mackay Locals Go With Solahart
Locally Owned
The Mount Pleasant dealership is owned and run by Ken and Viktoria Geissmann, so you're dealing with locals who know the Mackay region back to front.
70+ Years Of Heritage
A name Australians have trusted since 1953, Solahart has more than a million hot water systems installed in over 70 countries around the world.
Canstar Blue Number One
Named Australia's number one for Hot Water Systems in 2024, a second year on top, scoring five stars for satisfaction, value and performance.
Approved Seller
As a New Energy Tech Approved Seller, we sign up to tough consumer-protection standards right across solar, battery storage and EV chargers.
Premium Brand Partners
Tesla, SolarEdge and GoodWe are the brands we fit, so the components in your system are ones proven to hold up in Australian conditions.
Free On-Site Assessments
Anywhere across the Mackay region, we'll come out to your home or business free of charge and size up the system that suits you.
Warranty And Accreditation
Genuine Aussie Warranty Behind It
Every L Series install stands behind the Solahart Australian Product Warranty and is fitted by our SAA certified local team. Solahart took out Canstar Blue number one for Hot Water Systems, and we are a New Energy Tech Approved Seller. With 70-plus years of heritage, we will be here to service it for the long haul.
Local Proof
On Mackay Rooftops For Decades
Take a drive around Mackay and you will spot Solahart roof-mounted systems still working after twenty years or more. We have put hot water on for thousands of households across Mackay, Sarina and Walkerston, backed by more than 15,000 reviews. The same team that fits your system handles the local after-sales care.
Price And Rebates
Open Quotes With Rebates And Finance
Federal Small-scale Technology Certificates knock a decent slice off the upfront cost, and the paperwork is all on us. Before we start you get a fixed written quote covering the unit, install and warranty. Interest free Zip finance is there to spread the cost too.
Ready to Get Started?
Local Solar Service Across Central Queensland
One local crew, covering Mackay and the surrounding regions.
Every suburb throws up different roofs, weather and switchboards. We look at yours first, then design an install that suits the property rather than a one-size template.
Your city not listed? Call (07) 4863 0554 or browse all locations. If you're in our service area, we'll be in touch.
Next Step
Ready to Get Started?
Lock in a free in-home assessment with our Mackay team. We will size up your roof, your usage and your budget, then map out the solar, battery or hot water setup that fits. No obligation, no hard sell.