Low-Temperature Heating Design (LTHWS)  | Options Skills
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Our Low-Temperature Heating Design course allows you to extend your scope of knowledge and understanding of heating and hot water systems. Learning industry requirements and how to size heat emitters, pumps, pipework and hot water systems, you’ll be suitably equipped to help meet heating systems’ current and future demands and maximise efficiency.

Low-Temperature Heating Design is a two-day course for experienced plumbers and heating engineers.


inc. vat



Low-Temperature Heating Systems are classified as systems in which the hot water leaving the generator doesn’t normally exceed 55°C. Heating properties at a more constant pace, low-temp heating is an eco-friendlier option when compared to a regular gas boiler central heating system.

The Low-Temperature Heating Design course is designed to allow engineers to upskill in the concept of low-temperature heating systems. The aim is to demonstrate their knowledge and understanding of the need and requirements of installing low-temperature heating and hot water systems in domestic dwellings.

Assessment takes place through e-Assessment and design scenarios.

This Low-Temperature Heating Design course is £300, including VAT.

Engineer testing an unvented hot water cylinder

Standards & Requirements

Industry standards and regulatory framework relating to heating design and the requirements for undertaking a room-by-room heat loss for a property.



Correctly size heat emitters for low-temperature heating systems, pumps, pipework and domestic hot water systems. 


Installation & Maintenance

Understand the fundamental design principles of system configurations.


  • Room-by-room Heat Loss Calculations
  • Sizing Heat Emitters
  • Sizing Heat Pumps
  • Pipework Sizing
  • Domestic Hot Water Systems
  • System Configuration
  • Assessment
The course syllabus is intended as a guide. Timings and delivery of course content are subject to change at the discretion of the training manager & individual course tutors.


When you enrol on our ACS Domestic Gas & Plumbing Maintenance Training Course, you’ll be eligible to apply for twelve months of free Checkatrade membership. 

Checkatrade is the leading tradesperson directory, with over 13 million people using them to help find a reputable tradesperson.

Allowing you to reach new customers in your local area and further afield, Checkatrade and Options Skills will help you launch your career and grow your business.

Options Skills and Checkatrade banner for 12 months free membership when enrolled on the domestic gas training or domestic plumber training course
Tutor demonstrating low-temperature heating design
Tutor demonstrating low-temperature heating design
Tutor demonstrating low-temperature heating design


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Amy KeayAmy Keay
17:49 14 Jan 22
Option Skills - BirminghamI’m not usually a person who will write feedback on Google, but I am someone who will give credit where credit is due.I found myself in a position where I had been made redundant, and id had a conversation with someone who’d decided to go on a gas course and do this through Option Skills. After speaking with the individual, I decided that id give this a go myself to give myself a trade.I can honestly say that it is better than anything that id ever expected. Iv always been someone who had worked in finance, so doing this was new to me and I was a bit apprehensive with how it would go.I have nothing but praise to the employees at Option Skills, and I feel that they are a credit to the company.Andrew, Leanne and Shaun have been the people taking the training sessions, and what incredible people they are.They are extremely knowledgeable and helpful in every way possible with an extra desire to wanting to see you achieve.I have done the course for 8 weeks, and the knowledge I have picked up already is immense.If you are someone looking to get into the gas trade, I would highly recommend Option Skills as you will not be disappointed.Carl Evans
Samuel LauSamuel Lau
19:46 05 Jan 22
Although this course is intense and you will find yourself picking up a lot of information in a short space of time, Options Skills are the best way to get into the trades if you are a fast learner and are willing to work hard. The trainers are excellent (John, Steve, Thomas) and they will help you wherever they can, however be prepared to put in the work yourself in the evenings and weekends to revise and pass exams. Josh and James from the recruitment team were a joy to work with, they work tirelessly to find us all placements to start working in the industry while you complete the portfolio part of the course. I just finished the Electrical 6 week course and the lads found me a job in Birmingham city centre. With a number of exams left to do and portfolio to complete after you finish the 6 weeks in-centre, you can expect the total time to reach being qualified to be around 1-2 years.
beau clarkebeau clarke
08:12 24 Nov 21
Really recommend this training centre. Just finished a 6 week electrical installation course. Tutors Colin and John were great, they were knowledgeable professional and very supportive throughout. Josh and his recruitment team managed to find me a job in the industry starting the Monday after I finished the training. 5 stars all round from me. Thank you to everybody at option skills and keep up the good work!!!
Tom McdonaldTom Mcdonald
17:52 03 Nov 21
Great service from start to finish. Course is very well run & enjoyable. Prepares you for the world of electrics, with constant support from trainers Colin or John when needed. After the course is finished Josh and his team work around the clock to help you get a foot in the door at an electrical company. Constant support & updates, giving you confidence in what can be a hard process. Making it very smooth and simple
Kiril IvanovKiril Ivanov
07:37 14 Oct 21
John, I would like to express how much I enjoyed your classes. Thank you for making your classes special and interesting and enjoying with your innovative teaching.Thank you, for all the fun activities you included in the class to enhance learning, proving the fact that learning can indeed be fun.Great Teachers never try to be the best teachers. They simply bring out the best in their students. You definitely are one and I want you to know this. Thank you for everything.


Frequently asked questions about our low-temperature heating design training course.

To be eligible to undertake training, you must hold one of the following: 

  • N/SVQ Level 2/3 in Plumbing or equivalent earlier certification that provides evidence of competence; 


  • N/SVQ Level 2/3 in Heating and Ventilating (Domestic Installation) or equivalent earlier certification that provides evidence of competence; 


  • N/SVQ Level 2/3 in Heating and Ventilating (Industrial and Commercial Installation) or equivalent earlier certification that provides evidence of competence; 


  • N/SVQ Level 2/3 in Oil-Fired Technical Services or equivalent earlier certification that provides evidence of competence; 


  • N/SVQ Level 2/3 in Gas Installation and Maintenance or equivalent earlier certification that provides evidence of competence. 


  • heating installers with experience installing wet central heating systems, evidenced either by manufacturer courses certification or Gas Safe Register, OFTEC, MCS or HETAS registration 

Pre-requisites are not required where this qualification is delivered as part of a recognised training course in any of the above.

Earning the LTHWS qualification allows engineers to demonstrate knowledge and understanding of low-temperature heating and hot water requirements in domestic dwellings.

There is no specific expiry for this qualification. However, the MSC, competent persons scheme or a trade association you obtain membership in may require renewal.

Our Low-Temperature Heating Design training takes place over two days.

You will be required to be in the centre 8am-4pm.

The cost of our Low-Temperature Heating Systems course is £300

For more information on payment options, please speak to our course advisors on 0800 802 1306.

Training is available at each one of our training centres.

Upon completing the course, you will have experience and knowledge of designing low-temperature heating systems.

Along with gas engineering and heat pump installation and maintenance qualifications, you will be able to work as a gas and heating engineer to help meet the demand for 600,000 heat pump installations each year – and create an eco-friendlier future.

We are trading standards approved training provider, meaning we have been audited by trading standards and meet their criteria.

We have over 1000 5-star views from past students across our training centres.

Established nearly ten years, we have four training centres across the UK.

We put a significant focus on practical, hands-on learning.

We keep class sizes small to ensure focused learning and plenty of individual tutor time for students.

We offer two free exam resits when necessary, deliver refresher training and provide ongoing support to all our students.

We boast our own purpose-built online learning platform to support students in their training.

Our in-house recruitment team assist students in finding employment upon completing their training.

We have new low-temperature heating design courses starting regularly, so you’ll never have to wait long to begin training with Options Skills.

To find out more and enrol on our low-temperature heating design course, you can request a call back via our contact form or call us directly on 0800 802 1306.