Heating & hot water (LPG)

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Propex Heatsource HS2000 12v LPG Gas Blown Air Heater


New Digital Control Panel

The Propex HS2000 Digital kit includes the digital thermostat in place of the older rotary dial style one.  



Our exclusive Challenger C series diesel forced air heaters can and will heat the average motorhome to 24 degrees in roughly 5 - 6 minutes. Can your existing lpg Truma do that?  Can it do it while you drive?  Challenger can! Ask your rear traveling passengers just how cold in can be back there. 

HEATER SIZES - What is best?

2kw - Small to medium sized vehicle / boat

4kw - Medium / large sized vehicle - best all round performer both small, med and large vehicle / boat.

6kw - reserved for the larger vehicle/ boat, normally with multiple outlets required.


Rose Stepens

Just like to thank you for the great service and installation on our new Eberspatcher hot water and blown hot air heater .Steve done a great job .and lisa who I spoke to on a number of time on phone was great nothing was a bother to her. Would highly recommend this company. Thanks again


Maurice Smith

There's an old saying, "you've tried the rest now meet the best" and so it was. 

The ACLS engineer was a perfectionist. I'd thought I'd have to spend a fortune replacing the system. but he persevered, reverse-engineering the original manufacturers' customised installation to understand the system. 
I'd given up hope when out the blue A few minutes later and there was a beep, then another beep. then everything worked off the button!
He advised it didn't look like it even needed a service. The unit continues to work starting the first time every time, no smoke just a clean burn.
This was my first visit to ACLS and I travelled from Glasgow to Dumfries. the journey was well worth it.
I have no hesitation in recommending the team at ACLS the backroom staff were polite and ever so helpful in scheduling the visit and setting expectations. and they managed to fit me in on a bank holiday.
and my results speak for themselves they are my go-to for anything heating related in my motorhome.
thank you, ACLS

Grant Willoughby

Engineer turned up, assessed job, spent a few hours working on motorhome fitting Challenger 4 kWh heater.

Was pleasant and informative and answered all my questions, couldn't have asked for more. All I had to do was supply a few cups of coffee.

Wish my experience of tradesmen over the last few years was as pleasant and reliable as this. Many thanks and would not hesitate to recommend ACLS to other van users.

Elaine McPherson Over the moon with the job and professionalism of fitter.

Amazed at the heater, well worth the money spent , thankyou, 5 star quality service.


Brian Johnston Thanks to ACLS engineer for fitting there challenger 4 kWh diesel air heating to my motorhome today he did a first class job he explained every thing you need to know how to work the heating system i would recommend ACLS from ordering to the fitting if you want a diesel air heating for your motorhome or caravan call ACLS thanks again Brian


Tommy Christie Great job had it running for two hours toasting going to have a lot of fun during the winter 35 degrees if I want highly recommend !!!!

John Herriot Thank you for your time,banter and a superb job,
After you left I filled up with fuel and food and on my way to try it up at loch Rannoch 


Andy Stott nice job 👌

Bob Bertram Many thanks for today Steve 
Top quality fit out and professional service . Looking forward to using the campervan through the winter months now on snowboarding trips in Scotland with that cosy 4kw heater . All the best to ACLS team . 

Katie Louise We love it and can’t wait for our next trip

Darren Waite I would just like to say a massive thank you to Steve for travelling all this way down to Huddersfield to fit our new 4kw diesel heater ready for our trip to Austria, a clean and professional fit out and so happy to recommend to others, thanks again Steve

Bernard Greedy I had mine fitted 2 weeks ago and just love it !! Make lots of cups of coffee for the lad who fits it !! He has time to talk to you if you need to ask any questions he will answer them fully !!